This project will use the UK Core https://simplifier.net/ukcore/ukcorepatient
| UKCoreEncounter (Encounter) | C | Encounter | There are no (further) constraints on this elementElement id EncounterShort description An interaction during which services are provided to the patientAlternate names VisitDefinition An interaction between a patient and healthcare provider(s) for the purpose of providing healthcare service(s) or assessing the health status of a patient. 
 
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| id | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.idShort description Logical id of this artifactDefinition The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes. The only time that a resource does not have an id is when it is being submitted to the server using a create operation. | ||
| meta | Σ | 0..1 | Meta | There are no (further) constraints on this elementElement id Encounter.metaShort description Metadata about the resourceDefinition The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource. 
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| implicitRules | Σ ?! | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.implicitRulesShort description A set of rules under which this content was createdDefinition A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc. Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc. 
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| language | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.languageShort description Language of the resource contentDefinition The base language in which the resource is written. Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute). A human language. 
 
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| text | 0..1 | Narrative | There are no (further) constraints on this elementElement id Encounter.textShort description Text summary of the resource, for human interpretationAlternate names narrative, html, xhtml, displayDefinition A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety. Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later. 
 
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| contained | 0..* | Resource | There are no (further) constraints on this elementElement id Encounter.containedShort description Contained, inline ResourcesAlternate names inline resources, anonymous resources, contained resourcesDefinition These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope. This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
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| modifierExtension | ?! C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.modifierExtensionShort description Extensions that cannot be ignoredAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
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| identifier | Σ | 0..* | Identifier | There are no (further) constraints on this elementElement id Encounter.identifierShort description Identifier(s) by which this encounter is knownDefinition Identifier(s) by which this encounter is known. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
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| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
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| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
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| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
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| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
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| assigner | Σ | 0..1 | Reference() | Element id Encounter.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
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| status | Σ ?! | 1..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.statusShort description planned | arrived | triaged | in-progress | onleave | finished | cancelled +Definition planned | arrived | triaged | in-progress | onleave | finished | cancelled +. Note that internal business rules will determine the appropriate transitions that may occur between statuses (and also classes). Current state of the encounter. 
 
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| statusHistory | 0..* | BackboneElement | There are no (further) constraints on this elementElement id Encounter.statusHistoryShort description List of past encounter statusesDefinition The status history permits the encounter resource to contain the status history without needing to read through the historical versions of the resource, or even have the server store them. The current status is always found in the current version of the resource, not the status history. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.statusHistory.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.statusHistory.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
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| modifierExtension | Σ ?! C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.statusHistory.modifierExtensionShort description Extensions that cannot be ignored even if unrecognizedAlternate names extensions, user content, modifiersDefinition May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
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| status | 1..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.statusHistory.statusShort description planned | arrived | triaged | in-progress | onleave | finished | cancelled +Definition planned | arrived | triaged | in-progress | onleave | finished | cancelled +. Current state of the encounter. 
 
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| period | 1..1 | Period | There are no (further) constraints on this elementElement id Encounter.statusHistory.periodShort description The time that the episode was in the specified statusDefinition The time that the episode was in the specified status. 
 
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| class | Σ | 1..1 | CodingBinding | There are no (further) constraints on this elementElement id Encounter.classShort description Classification of patient encounterDefinition Concepts representing classification of patient encounter such as ambulatory (outpatient), inpatient, emergency, home health or others due to local variations. Classification of the encounter. v3.ActEncounterCode (extensible)Constraints 
 
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| classHistory | 0..* | BackboneElement | There are no (further) constraints on this elementElement id Encounter.classHistoryShort description List of past encounter classesDefinition The class history permits the tracking of the encounters transitions without needing to go through the resource history. This would be used for a case where an admission starts of as an emergency encounter, then transitions into an inpatient scenario. Doing this and not restarting a new encounter ensures that any lab/diagnostic results can more easily follow the patient and not require re-processing and not get lost or cancelled during a kind of discharge from emergency to inpatient. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.classHistory.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.classHistory.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
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| modifierExtension | Σ ?! C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.classHistory.modifierExtensionShort description Extensions that cannot be ignored even if unrecognizedAlternate names extensions, user content, modifiersDefinition May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
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| class | 1..1 | CodingBinding | There are no (further) constraints on this elementElement id Encounter.classHistory.classShort description inpatient | outpatient | ambulatory | emergency +Definition inpatient | outpatient | ambulatory | emergency +. Classification of the encounter. v3.ActEncounterCode (extensible)Constraints 
 
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| period | 1..1 | Period | There are no (further) constraints on this elementElement id Encounter.classHistory.periodShort description The time that the episode was in the specified classDefinition The time that the episode was in the specified class. 
 
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| type | Σ | 0..* | CodeableConcept | There are no (further) constraints on this elementElement id Encounter.typeShort description Specific type of encounterDefinition Specific type of encounter (e.g. e-mail consultation, surgical day-care, skilled nursing, rehabilitation). Since there are many ways to further classify encounters, this element is 0..*. The type of encounter. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.type.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.type.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| coding | Σ | 0..* | Coding | Element id Encounter.type.codingShort description Code defined by a terminology systemDefinition A reference to a code defined by a terminology system. Allows for alternative encodings within a code system, and translations to other code systems. Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true. Unordered, Open, by system(Value)Constraints 
 
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| snomedCT | Σ | 0..* | CodingBinding | Element id Encounter.type.coding:snomedCTShort description Code defined by a terminology systemDefinition A reference to a code defined by a terminology system. Allows for alternative encodings within a code system, and translations to other code systems. Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true. A code from the SNOMED Clinical Terminology UK coding system that describes an encounter between a care professional and the patient (or patient's record). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.type.coding:snomedCT.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.type.coding:snomedCT.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| system | Σ | 1..1 | uriFixed Value | Element id Encounter.type.coding:snomedCT.systemShort description Identity of the terminology systemDefinition The identification of the code system that defines the meaning of the symbol in the code. Need to be unambiguous about the source of the definition of the symbol. The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously. 
 http://snomed.info/sctMappings 
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| version | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.type.coding:snomedCT.versionShort description Version of the system - if relevantDefinition The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged. Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date. 
 
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| code | Σ | 1..1 | code | There are no (further) constraints on this elementElement id Encounter.type.coding:snomedCT.codeShort description Symbol in syntax defined by the systemDefinition A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination). Need to refer to a particular code in the system. 
 
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| display | Σ | 1..1 | string | There are no (further) constraints on this elementElement id Encounter.type.coding:snomedCT.displayShort description Representation defined by the systemDefinition A representation of the meaning of the code in the system, following the rules of the system. Need to be able to carry a human-readable meaning of the code for readers that do not know the system. 
 
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| userSelected | Σ | 0..1 | boolean | There are no (further) constraints on this elementElement id Encounter.type.coding:snomedCT.userSelectedShort description If this coding was chosen directly by the userDefinition Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays). This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing. Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely. 
 
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| text | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.type.textShort description Plain text representation of the conceptDefinition A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user. The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source. Very often the text is the same as a displayName of one of the codings. 
 
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| serviceType | Σ | 0..1 | CodeableConcept | There are no (further) constraints on this elementElement id Encounter.serviceTypeShort description Specific type of serviceDefinition Broad categorization of the service that is to be provided (e.g. cardiology). Broad categorization of the service that is to be provided. 
 
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| priority | 0..1 | CodeableConcept | There are no (further) constraints on this elementElement id Encounter.priorityShort description Indicates the urgency of the encounterDefinition Indicates the urgency of the encounter. Indicates the urgency of the encounter. 
 
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| subject | Σ | 0..1 | Reference(Group | ) | Element id Encounter.subjectShort description The patient or group present at the encounterAlternate names patientDefinition The patient or group present at the encounter. While the encounter is always about the patient, the patient might not actually be known in all contexts of use, and there may be a group of patients that could be anonymous (such as in a group therapy for Alcoholics Anonymous - where the recording of the encounter could be used for billing on the number of people/staff and not important to the context of the specific patients) or alternately in veterinary care a herd of sheep receiving treatment (where the animals are not individually tracked). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.subject.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.subject.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.subject.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.subject.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
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| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.subject.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.subject.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.subject.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.subject.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
 | ||
| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.subject.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
 | ||
| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.subject.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
 | ||
| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.subject.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.subject.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
 | ||
| assigner | Σ | 0..1 | Reference() | Element id Encounter.subject.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
 | ||
| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.subject.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
 | ||
| episodeOfCare | Σ | 0..* | Reference(EpisodeOfCare) | There are no (further) constraints on this elementElement id Encounter.episodeOfCareShort description Episode(s) of care that this encounter should be recorded againstDefinition Where a specific encounter should be classified as a part of a specific episode(s) of care this field should be used. This association can facilitate grouping of related encounters together for a specific purpose, such as government reporting, issue tracking, association via a common problem. The association is recorded on the encounter as these are typically created after the episode of care and grouped on entry rather than editing the episode of care to append another encounter to it (the episode of care could span years). 
 
 | ||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
 | ||
| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
 | ||
| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
 | ||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
 | ||
| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
 | ||
| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
 | ||
| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
 | ||
| assigner | Σ | 0..1 | Reference() | Element id Encounter.episodeOfCare.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
 | ||
| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
 | ||
| basedOn | 0..* | Reference(ServiceRequest) | There are no (further) constraints on this elementElement id Encounter.basedOnShort description The ServiceRequest that initiated this encounterAlternate names incomingReferralDefinition The request this encounter satisfies (e.g. incoming referral or procedure request). 
 
 | |||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.basedOn.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.basedOn.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.basedOn.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
 | ||
| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.basedOn.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
 | ||
| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.basedOn.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
 | ||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.basedOn.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.basedOn.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.basedOn.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
 | ||
| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.basedOn.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
 | ||
| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.basedOn.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
 | ||
| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.basedOn.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.basedOn.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
 | ||
| assigner | Σ | 0..1 | Reference() | Element id Encounter.basedOn.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
 | ||
| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.basedOn.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
 | ||
| participant | Σ | 0..* | BackboneElement | There are no (further) constraints on this elementElement id Encounter.participantShort description List of participants involved in the encounterDefinition The list of people responsible for providing the service. 
 
 | ||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.participant.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.participant.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
 | ||
| modifierExtension | Σ ?! C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.participant.modifierExtensionShort description Extensions that cannot be ignored even if unrecognizedAlternate names extensions, user content, modifiersDefinition May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
 | ||
| type | Σ | 0..* | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.participant.typeShort description Role of participant in encounterDefinition Role of participant in encounter. The participant type indicates how an individual participates in an encounter. It includes non-practitioner participants, and for practitioners this is to describe the action type in the context of this encounter (e.g. Admitting Dr, Attending Dr, Translator, Consulting Dr). This is different to the practitioner roles which are functional roles, derived from terms of employment, education, licensing, etc. Role of participant in encounter. 
 
 | ||
| period | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.participant.periodShort description Period of time during the encounter that the participant participatedDefinition The period of time that the specified participant participated in the encounter. These can overlap or be sub-sets of the overall encounter's period. 
 
 | |||
| individual | Σ | 0..1 | Reference( | | ) | Element id Encounter.participant.individualShort description Persons involved in the encounter other than the patientDefinition Persons involved in the encounter other than the patient. Reference( | | )Constraints 
 
 | ||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.participant.individual.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.participant.individual.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.participant.individual.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
 | ||
| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.participant.individual.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
 | ||
| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.participant.individual.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
 | ||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.participant.individual.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.participant.individual.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.participant.individual.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
 | ||
| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.participant.individual.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
 | ||
| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.participant.individual.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
 | ||
| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.participant.individual.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.participant.individual.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
 | ||
| assigner | Σ | 0..1 | Reference() | Element id Encounter.participant.individual.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
 | ||
| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.participant.individual.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
 | ||
| appointment | Σ | 0..* | Reference(Appointment) | There are no (further) constraints on this elementElement id Encounter.appointmentShort description The appointment that scheduled this encounterDefinition The appointment that scheduled this encounter. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.appointment.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.appointment.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.appointment.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
 | ||
| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.appointment.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
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| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.appointment.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.appointment.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.appointment.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.appointment.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
 | ||
| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.appointment.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
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| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.appointment.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
 | ||
| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.appointment.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.appointment.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
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| assigner | Σ | 0..1 | Reference() | Element id Encounter.appointment.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
 | ||
| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.appointment.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
 | ||
| period | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.periodShort description The start and end time of the encounterDefinition The start and end time of the encounter. If not (yet) known, the end of the Period may be omitted. 
 
 | |||
| length | 0..1 | Duration | There are no (further) constraints on this elementElement id Encounter.lengthShort description Quantity of time the encounter lasted (less time absent)Definition Quantity of time the encounter lasted. This excludes the time during leaves of absence. May differ from the time the Encounter.period lasted because of leave of absence. 
 
 | |||
| reasonCode | Σ | 0..* | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.reasonCodeShort description Coded reason the encounter takes placeAlternate names Indication, Admission diagnosisDefinition Reason the encounter takes place, expressed as a code. For admissions, this can be used for a coded admission diagnosis. For systems that need to know which was the primary diagnosis, these will be marked with the standard extension primaryDiagnosis (which is a sequence value rather than a flag, 1 = primary diagnosis). Reason why the encounter takes place. EncounterReasonCodes (preferred)Constraints 
 
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| reasonReference | Σ | 0..* | Reference(ImmunizationRecommendation | | | ) | Element id Encounter.reasonReferenceShort description Reason the encounter takes place (reference)Alternate names Indication, Admission diagnosisDefinition Reason the encounter takes place, expressed as a code. For admissions, this can be used for a coded admission diagnosis. For systems that need to know which was the primary diagnosis, these will be marked with the standard extension primaryDiagnosis (which is a sequence value rather than a flag, 1 = primary diagnosis). Reference(ImmunizationRecommendation | | | )Constraints 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.reasonReference.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.reasonReference.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.reasonReference.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.reasonReference.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
 | ||
| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.reasonReference.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
 | ||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.reasonReference.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.reasonReference.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.reasonReference.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
 | ||
| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.reasonReference.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
 | ||
| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.reasonReference.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
 | ||
| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.reasonReference.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.reasonReference.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
 | ||
| assigner | Σ | 0..1 | Reference() | Element id Encounter.reasonReference.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
 | ||
| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.reasonReference.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
 | ||
| diagnosis | Σ | 0..* | BackboneElement | There are no (further) constraints on this elementElement id Encounter.diagnosisShort description The list of diagnosis relevant to this encounterDefinition The list of diagnosis relevant to this encounter. 
 
 | ||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.diagnosis.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.diagnosis.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
 | ||
| modifierExtension | Σ ?! C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.diagnosis.modifierExtensionShort description Extensions that cannot be ignored even if unrecognizedAlternate names extensions, user content, modifiersDefinition May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
 | ||
| condition | Σ | 1..1 | Reference( | ) | Element id Encounter.diagnosis.conditionShort description The diagnosis or procedure relevant to the encounterAlternate names Admission diagnosis, discharge diagnosis, indicationDefinition Reason the encounter takes place, as specified using information from another resource. For admissions, this is the admission diagnosis. The indication will typically be a Condition (with other resources referenced in the evidence.detail), or a Procedure. For systems that need to know which was the primary diagnosis, these will be marked with the standard extension primaryDiagnosis (which is a sequence value rather than a flag, 1 = primary diagnosis). Reference( | )Constraints 
 
 | ||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
 | ||
| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
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| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
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| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
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| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
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| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
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| assigner | Σ | 0..1 | Reference() | Element id Encounter.diagnosis.condition.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
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| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
 | ||
| use | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.diagnosis.useShort description Role that this diagnosis has within the encounter (e.g. admission, billing, discharge …)Definition Role that this diagnosis has within the encounter (e.g. admission, billing, discharge …). The type of diagnosis this condition represents. 
 
 | |||
| rank | 0..1 | positiveInt | There are no (further) constraints on this elementElement id Encounter.diagnosis.rankShort description Ranking of the diagnosis (for each role type)Definition Ranking of the diagnosis (for each role type). 
 
 | |||
| account | 0..* | Reference(Account) | There are no (further) constraints on this elementElement id Encounter.accountShort description The set of accounts that may be used for billing for this EncounterDefinition The set of accounts that may be used for billing for this Encounter. The billing system may choose to allocate billable items associated with the Encounter to different referenced Accounts based on internal business rules. 
 
 | |||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.account.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.account.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.account.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.account.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
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| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.account.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.account.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.account.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.account.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
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| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.account.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
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| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.account.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
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| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.account.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
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| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.account.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
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| assigner | Σ | 0..1 | Reference() | Element id Encounter.account.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
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| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.account.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
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| hospitalization | 0..1 | BackboneElement | There are no (further) constraints on this elementElement id Encounter.hospitalizationShort description Details about the admission to a healthcare serviceDefinition Details about the admission to a healthcare service. An Encounter may cover more than just the inpatient stay. Contexts such as outpatients, community clinics, and aged care facilities are also included. The duration recorded in the period of this encounter covers the entire scope of this hospitalization record. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.hospitalization.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
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| modifierExtension | Σ ?! C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.hospitalization.modifierExtensionShort description Extensions that cannot be ignored even if unrecognizedAlternate names extensions, user content, modifiersDefinition May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
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| preAdmissionIdentifier | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.hospitalization.preAdmissionIdentifierShort description Pre-admission identifierDefinition Pre-admission identifier. 
 
 | |||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.preAdmissionIdentifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.hospitalization.preAdmissionIdentifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.preAdmissionIdentifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
 | ||
| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.preAdmissionIdentifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
 | ||
| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.hospitalization.preAdmissionIdentifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
 | ||
| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.preAdmissionIdentifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.hospitalization.preAdmissionIdentifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
 | ||
| assigner | Σ | 0..1 | Reference() | Element id Encounter.hospitalization.preAdmissionIdentifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
 | ||
| origin | 0..1 | Reference( | ) | Element id Encounter.hospitalization.originShort description The location/organization from which the patient came before admissionDefinition The location/organization from which the patient came before admission. Reference( | )Constraints 
 
 | |||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
 | ||
| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
 | ||
| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
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| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
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| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
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| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
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| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
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| assigner | Σ | 0..1 | Reference() | Element id Encounter.hospitalization.origin.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
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| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
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| admitSource | 0..1 | CodeableConceptBinding | Element id Encounter.hospitalization.admitSourceShort description From where patient was admitted (physician referral, transfer)Definition From where patient was admitted (physician referral, transfer). The source of admission to a Hospital Provider Spell or a Nursing Episode when the Patient is in a Hospital Site or a Care Home. 
 
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| reAdmission | 0..1 | CodeableConcept | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmissionShort description The type of hospital re-admission that has occurred (if any). If the value is absent, then this is not identified as a readmissionDefinition Whether this hospitalization is a readmission and why if known. The reason for re-admission of this hospitalization encounter. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| coding | Σ | 0..* | Coding | Element id Encounter.hospitalization.reAdmission.codingShort description Code defined by a terminology systemDefinition A reference to a code defined by a terminology system. Allows for alternative encodings within a code system, and translations to other code systems. Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true. Unordered, Open, by system(Value)Constraints 
 
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| snomedCT | Σ | 0..* | Coding | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.coding:snomedCTShort description Code defined by a terminology systemDefinition A reference to a code defined by a terminology system. Allows for alternative encodings within a code system, and translations to other code systems. Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.coding:snomedCT.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.coding:snomedCT.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| system | Σ | 1..1 | uriFixed Value | Element id Encounter.hospitalization.reAdmission.coding:snomedCT.systemShort description Identity of the terminology systemDefinition The identification of the code system that defines the meaning of the symbol in the code. Need to be unambiguous about the source of the definition of the symbol. The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously. 
 http://snomed.info/sctMappings 
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| version | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.coding:snomedCT.versionShort description Version of the system - if relevantDefinition The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged. Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date. 
 
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| code | Σ | 1..1 | code | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.coding:snomedCT.codeShort description Symbol in syntax defined by the systemDefinition A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination). Need to refer to a particular code in the system. 
 
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| display | Σ | 1..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.coding:snomedCT.displayShort description Representation defined by the systemDefinition A representation of the meaning of the code in the system, following the rules of the system. Need to be able to carry a human-readable meaning of the code for readers that do not know the system. 
 
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| userSelected | Σ | 0..1 | boolean | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.coding:snomedCT.userSelectedShort description If this coding was chosen directly by the userDefinition Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays). This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing. Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely. 
 
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| text | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.textShort description Plain text representation of the conceptDefinition A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user. The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source. Very often the text is the same as a displayName of one of the codings. 
 
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| dietPreference | 0..* | CodeableConcept | There are no (further) constraints on this elementElement id Encounter.hospitalization.dietPreferenceShort description Diet preferences reported by the patientDefinition Diet preferences reported by the patient. Used to track patient's diet restrictions and/or preference. For a complete description of the nutrition needs of a patient during their stay, one should use the nutritionOrder resource which links to Encounter. For example, a patient may request both a dairy-free and nut-free diet preference (not mutually exclusive). Medical, cultural or ethical food preferences to help with catering requirements. 
 
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| specialCourtesy | 0..* | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.specialCourtesyShort description Special courtesies (VIP, board member)Definition Special courtesies (VIP, board member). Special courtesies. 
 
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| specialArrangement | 0..* | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.specialArrangementShort description Wheelchair, translator, stretcher, etc.Definition Any special requests that have been made for this hospitalization encounter, such as the provision of specific equipment or other things. Special arrangements. SpecialArrangements (preferred)Constraints 
 
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| destination | 0..1 | Reference( | ) | Element id Encounter.hospitalization.destinationShort description Location/organization to which the patient is dischargedDefinition Location/organization to which the patient is discharged. Reference( | )Constraints 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
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| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
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| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
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| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
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| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
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| assigner | Σ | 0..1 | Reference() | Element id Encounter.hospitalization.destination.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
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| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
 | ||
| dischargeDisposition | 0..1 | CodeableConceptBinding | Element id Encounter.hospitalization.dischargeDispositionShort description Category or kind of location after dischargeDefinition Category or kind of location after discharge. The destination of a Patient on completion of a Hospital Provider Spell, or a note that the Patient died or was a still birth. 
 
 | |||
| location | 0..* | BackboneElement | There are no (further) constraints on this elementElement id Encounter.locationShort description List of locations where the patient has beenDefinition List of locations where the patient has been during this encounter. Virtual encounters can be recorded in the Encounter by specifying a location reference to a location of type "kind" such as "client's home" and an encounter.class = "virtual". 
 
 | |||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.location.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.location.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
 | ||
| modifierExtension | Σ ?! C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.location.modifierExtensionShort description Extensions that cannot be ignored even if unrecognizedAlternate names extensions, user content, modifiersDefinition May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
 | ||
| location | 1..1 | Reference() | Element id Encounter.location.locationShort description Location the encounter takes placeDefinition The location where the encounter takes place. 
 
 | |||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.location.location.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.location.location.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.location.location.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.location.location.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
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| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.location.location.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.location.location.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.location.location.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.location.location.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
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| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.location.location.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
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| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.location.location.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
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| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.location.location.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
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| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.location.location.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
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| assigner | Σ | 0..1 | Reference() | Element id Encounter.location.location.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
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| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.location.location.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
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| status | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.location.statusShort description planned | active | reserved | completedDefinition The status of the participants' presence at the specified location during the period specified. If the participant is no longer at the location, then the period will have an end date/time. When the patient is no longer active at a location, then the period end date is entered, and the status may be changed to completed. The status of the location. EncounterLocationStatus (required)Constraints 
 
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| physicalType | 0..1 | CodeableConcept | There are no (further) constraints on this elementElement id Encounter.location.physicalTypeShort description The physical type of the location (usually the level in the location hierachy - bed room ward etc.)Definition This will be used to specify the required levels (bed/ward/room/etc.) desired to be recorded to simplify either messaging or query. This information is de-normalized from the Location resource to support the easier understanding of the encounter resource and processing in messaging or query. There may be many levels in the hierachy, and this may only pic specific levels that are required for a specific usage scenario. Physical form of the location. 
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| period | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.location.periodShort description Time period during which the patient was present at the locationDefinition Time period during which the patient was present at the location. 
 
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| serviceProvider | 0..1 | Reference() | Element id Encounter.serviceProviderShort description The organization (facility) responsible for this encounterDefinition The organization that is primarily responsible for this Encounter's services. This MAY be the same as the organization on the Patient record, however it could be different, such as if the actor performing the services was from an external organization (which may be billed seperately) for an external consultation. Refer to the example bundle showing an abbreviated set of Encounters for a colonoscopy. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.serviceProvider.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.serviceProvider.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.serviceProvider.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.serviceProvider.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
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| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.serviceProvider.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.serviceProvider.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.serviceProvider.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.serviceProvider.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
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| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.serviceProvider.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
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| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.serviceProvider.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
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| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.serviceProvider.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
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| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.serviceProvider.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
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| assigner | Σ | 0..1 | Reference() | Element id Encounter.serviceProvider.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
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| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.serviceProvider.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
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| partOf | 0..1 | Reference() | Element id Encounter.partOfShort description Another Encounter this encounter is part ofDefinition Another Encounter of which this encounter is a part of (administratively or in time). This is also used for associating a child's encounter back to the mother's encounter. Refer to the Notes section in the Patient resource for further details. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.partOf.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.partOf.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.partOf.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.partOf.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
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| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.partOf.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.partOf.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.partOf.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.partOf.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
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| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.partOf.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
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| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.partOf.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
 | ||
| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.partOf.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.partOf.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
 | ||
| assigner | Σ | 0..1 | Reference() | Element id Encounter.partOf.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
 | ||
| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.partOf.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
 | 
| UKCoreEncounter (Encounter) | C | Encounter | There are no (further) constraints on this elementElement id EncounterShort description An interaction during which services are provided to the patientAlternate names VisitDefinition An interaction between a patient and healthcare provider(s) for the purpose of providing healthcare service(s) or assessing the health status of a patient. 
 
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| id | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.idShort description Logical id of this artifactDefinition The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes. The only time that a resource does not have an id is when it is being submitted to the server using a create operation. | ||
| meta | Σ | 0..1 | Meta | There are no (further) constraints on this elementElement id Encounter.metaShort description Metadata about the resourceDefinition The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource. 
 | ||
| implicitRules | Σ ?! | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.implicitRulesShort description A set of rules under which this content was createdDefinition A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc. Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc. 
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| language | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.languageShort description Language of the resource contentDefinition The base language in which the resource is written. Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute). A human language. 
 
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| text | 0..1 | Narrative | There are no (further) constraints on this elementElement id Encounter.textShort description Text summary of the resource, for human interpretationAlternate names narrative, html, xhtml, displayDefinition A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety. Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later. 
 
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| contained | 0..* | Resource | There are no (further) constraints on this elementElement id Encounter.containedShort description Contained, inline ResourcesAlternate names inline resources, anonymous resources, contained resourcesDefinition These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope. This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
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| modifierExtension | ?! C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.modifierExtensionShort description Extensions that cannot be ignoredAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
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| identifier | Σ | 0..* | Identifier | There are no (further) constraints on this elementElement id Encounter.identifierShort description Identifier(s) by which this encounter is knownDefinition Identifier(s) by which this encounter is known. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
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| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
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| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
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| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
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| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
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| assigner | Σ | 0..1 | Reference() | Element id Encounter.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
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| status | Σ ?! | 1..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.statusShort description planned | arrived | triaged | in-progress | onleave | finished | cancelled +Definition planned | arrived | triaged | in-progress | onleave | finished | cancelled +. Note that internal business rules will determine the appropriate transitions that may occur between statuses (and also classes). Current state of the encounter. 
 
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| statusHistory | 0..* | BackboneElement | There are no (further) constraints on this elementElement id Encounter.statusHistoryShort description List of past encounter statusesDefinition The status history permits the encounter resource to contain the status history without needing to read through the historical versions of the resource, or even have the server store them. The current status is always found in the current version of the resource, not the status history. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.statusHistory.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.statusHistory.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
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| modifierExtension | Σ ?! C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.statusHistory.modifierExtensionShort description Extensions that cannot be ignored even if unrecognizedAlternate names extensions, user content, modifiersDefinition May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
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| status | 1..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.statusHistory.statusShort description planned | arrived | triaged | in-progress | onleave | finished | cancelled +Definition planned | arrived | triaged | in-progress | onleave | finished | cancelled +. Current state of the encounter. 
 
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| period | 1..1 | Period | There are no (further) constraints on this elementElement id Encounter.statusHistory.periodShort description The time that the episode was in the specified statusDefinition The time that the episode was in the specified status. 
 
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| class | Σ | 1..1 | CodingBinding | There are no (further) constraints on this elementElement id Encounter.classShort description Classification of patient encounterDefinition Concepts representing classification of patient encounter such as ambulatory (outpatient), inpatient, emergency, home health or others due to local variations. Classification of the encounter. v3.ActEncounterCode (extensible)Constraints 
 
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| classHistory | 0..* | BackboneElement | There are no (further) constraints on this elementElement id Encounter.classHistoryShort description List of past encounter classesDefinition The class history permits the tracking of the encounters transitions without needing to go through the resource history. This would be used for a case where an admission starts of as an emergency encounter, then transitions into an inpatient scenario. Doing this and not restarting a new encounter ensures that any lab/diagnostic results can more easily follow the patient and not require re-processing and not get lost or cancelled during a kind of discharge from emergency to inpatient. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.classHistory.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.classHistory.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
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| modifierExtension | Σ ?! C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.classHistory.modifierExtensionShort description Extensions that cannot be ignored even if unrecognizedAlternate names extensions, user content, modifiersDefinition May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
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| class | 1..1 | CodingBinding | There are no (further) constraints on this elementElement id Encounter.classHistory.classShort description inpatient | outpatient | ambulatory | emergency +Definition inpatient | outpatient | ambulatory | emergency +. Classification of the encounter. v3.ActEncounterCode (extensible)Constraints 
 
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| period | 1..1 | Period | There are no (further) constraints on this elementElement id Encounter.classHistory.periodShort description The time that the episode was in the specified classDefinition The time that the episode was in the specified class. 
 
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| type | Σ | 0..* | CodeableConcept | There are no (further) constraints on this elementElement id Encounter.typeShort description Specific type of encounterDefinition Specific type of encounter (e.g. e-mail consultation, surgical day-care, skilled nursing, rehabilitation). Since there are many ways to further classify encounters, this element is 0..*. The type of encounter. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.type.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.type.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| coding | Σ | 0..* | Coding | Element id Encounter.type.codingShort description Code defined by a terminology systemDefinition A reference to a code defined by a terminology system. Allows for alternative encodings within a code system, and translations to other code systems. Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true. Unordered, Open, by system(Value)Constraints 
 
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| snomedCT | Σ | 0..* | CodingBinding | Element id Encounter.type.coding:snomedCTShort description Code defined by a terminology systemDefinition A reference to a code defined by a terminology system. Allows for alternative encodings within a code system, and translations to other code systems. Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true. A code from the SNOMED Clinical Terminology UK coding system that describes an encounter between a care professional and the patient (or patient's record). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.type.coding:snomedCT.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.type.coding:snomedCT.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| system | Σ | 1..1 | uriFixed Value | Element id Encounter.type.coding:snomedCT.systemShort description Identity of the terminology systemDefinition The identification of the code system that defines the meaning of the symbol in the code. Need to be unambiguous about the source of the definition of the symbol. The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously. 
 http://snomed.info/sctMappings 
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| version | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.type.coding:snomedCT.versionShort description Version of the system - if relevantDefinition The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged. Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date. 
 
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| code | Σ | 1..1 | code | There are no (further) constraints on this elementElement id Encounter.type.coding:snomedCT.codeShort description Symbol in syntax defined by the systemDefinition A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination). Need to refer to a particular code in the system. 
 
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| display | Σ | 1..1 | string | There are no (further) constraints on this elementElement id Encounter.type.coding:snomedCT.displayShort description Representation defined by the systemDefinition A representation of the meaning of the code in the system, following the rules of the system. Need to be able to carry a human-readable meaning of the code for readers that do not know the system. 
 
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| userSelected | Σ | 0..1 | boolean | There are no (further) constraints on this elementElement id Encounter.type.coding:snomedCT.userSelectedShort description If this coding was chosen directly by the userDefinition Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays). This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing. Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely. 
 
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| text | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.type.textShort description Plain text representation of the conceptDefinition A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user. The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source. Very often the text is the same as a displayName of one of the codings. 
 
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| serviceType | Σ | 0..1 | CodeableConcept | There are no (further) constraints on this elementElement id Encounter.serviceTypeShort description Specific type of serviceDefinition Broad categorization of the service that is to be provided (e.g. cardiology). Broad categorization of the service that is to be provided. 
 
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| priority | 0..1 | CodeableConcept | There are no (further) constraints on this elementElement id Encounter.priorityShort description Indicates the urgency of the encounterDefinition Indicates the urgency of the encounter. Indicates the urgency of the encounter. 
 
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| subject | Σ | 0..1 | Reference(Group | ) | Element id Encounter.subjectShort description The patient or group present at the encounterAlternate names patientDefinition The patient or group present at the encounter. While the encounter is always about the patient, the patient might not actually be known in all contexts of use, and there may be a group of patients that could be anonymous (such as in a group therapy for Alcoholics Anonymous - where the recording of the encounter could be used for billing on the number of people/staff and not important to the context of the specific patients) or alternately in veterinary care a herd of sheep receiving treatment (where the animals are not individually tracked). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.subject.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.subject.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.subject.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.subject.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
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| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.subject.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.subject.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.subject.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.subject.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
 | ||
| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.subject.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
 | ||
| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.subject.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
 | ||
| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.subject.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.subject.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
 | ||
| assigner | Σ | 0..1 | Reference() | Element id Encounter.subject.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
 | ||
| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.subject.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
 | ||
| episodeOfCare | Σ | 0..* | Reference(EpisodeOfCare) | There are no (further) constraints on this elementElement id Encounter.episodeOfCareShort description Episode(s) of care that this encounter should be recorded againstDefinition Where a specific encounter should be classified as a part of a specific episode(s) of care this field should be used. This association can facilitate grouping of related encounters together for a specific purpose, such as government reporting, issue tracking, association via a common problem. The association is recorded on the encounter as these are typically created after the episode of care and grouped on entry rather than editing the episode of care to append another encounter to it (the episode of care could span years). 
 
 | ||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
 | ||
| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
 | ||
| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
 | ||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
 | ||
| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
 | ||
| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
 | ||
| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
 | ||
| assigner | Σ | 0..1 | Reference() | Element id Encounter.episodeOfCare.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
 | ||
| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
 | ||
| basedOn | 0..* | Reference(ServiceRequest) | There are no (further) constraints on this elementElement id Encounter.basedOnShort description The ServiceRequest that initiated this encounterAlternate names incomingReferralDefinition The request this encounter satisfies (e.g. incoming referral or procedure request). 
 
 | |||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.basedOn.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.basedOn.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.basedOn.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
 | ||
| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.basedOn.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
 | ||
| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.basedOn.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
 | ||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.basedOn.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.basedOn.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.basedOn.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
 | ||
| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.basedOn.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
 | ||
| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.basedOn.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
 | ||
| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.basedOn.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.basedOn.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
 | ||
| assigner | Σ | 0..1 | Reference() | Element id Encounter.basedOn.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
 | ||
| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.basedOn.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
 | ||
| participant | Σ | 0..* | BackboneElement | There are no (further) constraints on this elementElement id Encounter.participantShort description List of participants involved in the encounterDefinition The list of people responsible for providing the service. 
 
 | ||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.participant.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.participant.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
 | ||
| modifierExtension | Σ ?! C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.participant.modifierExtensionShort description Extensions that cannot be ignored even if unrecognizedAlternate names extensions, user content, modifiersDefinition May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
 | ||
| type | Σ | 0..* | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.participant.typeShort description Role of participant in encounterDefinition Role of participant in encounter. The participant type indicates how an individual participates in an encounter. It includes non-practitioner participants, and for practitioners this is to describe the action type in the context of this encounter (e.g. Admitting Dr, Attending Dr, Translator, Consulting Dr). This is different to the practitioner roles which are functional roles, derived from terms of employment, education, licensing, etc. Role of participant in encounter. 
 
 | ||
| period | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.participant.periodShort description Period of time during the encounter that the participant participatedDefinition The period of time that the specified participant participated in the encounter. These can overlap or be sub-sets of the overall encounter's period. 
 
 | |||
| individual | Σ | 0..1 | Reference( | | ) | Element id Encounter.participant.individualShort description Persons involved in the encounter other than the patientDefinition Persons involved in the encounter other than the patient. Reference( | | )Constraints 
 
 | ||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.participant.individual.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.participant.individual.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.participant.individual.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
 | ||
| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.participant.individual.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
 | ||
| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.participant.individual.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
 | ||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.participant.individual.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.participant.individual.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.participant.individual.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
 | ||
| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.participant.individual.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
 | ||
| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.participant.individual.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
 | ||
| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.participant.individual.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.participant.individual.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
 | ||
| assigner | Σ | 0..1 | Reference() | Element id Encounter.participant.individual.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
 | ||
| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.participant.individual.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
 | ||
| appointment | Σ | 0..* | Reference(Appointment) | There are no (further) constraints on this elementElement id Encounter.appointmentShort description The appointment that scheduled this encounterDefinition The appointment that scheduled this encounter. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.appointment.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.appointment.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.appointment.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
 | ||
| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.appointment.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
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| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.appointment.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.appointment.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.appointment.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.appointment.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
 | ||
| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.appointment.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
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| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.appointment.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
 | ||
| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.appointment.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.appointment.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
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| assigner | Σ | 0..1 | Reference() | Element id Encounter.appointment.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
 | ||
| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.appointment.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
 | ||
| period | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.periodShort description The start and end time of the encounterDefinition The start and end time of the encounter. If not (yet) known, the end of the Period may be omitted. 
 
 | |||
| length | 0..1 | Duration | There are no (further) constraints on this elementElement id Encounter.lengthShort description Quantity of time the encounter lasted (less time absent)Definition Quantity of time the encounter lasted. This excludes the time during leaves of absence. May differ from the time the Encounter.period lasted because of leave of absence. 
 
 | |||
| reasonCode | Σ | 0..* | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.reasonCodeShort description Coded reason the encounter takes placeAlternate names Indication, Admission diagnosisDefinition Reason the encounter takes place, expressed as a code. For admissions, this can be used for a coded admission diagnosis. For systems that need to know which was the primary diagnosis, these will be marked with the standard extension primaryDiagnosis (which is a sequence value rather than a flag, 1 = primary diagnosis). Reason why the encounter takes place. EncounterReasonCodes (preferred)Constraints 
 
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| reasonReference | Σ | 0..* | Reference(ImmunizationRecommendation | | | ) | Element id Encounter.reasonReferenceShort description Reason the encounter takes place (reference)Alternate names Indication, Admission diagnosisDefinition Reason the encounter takes place, expressed as a code. For admissions, this can be used for a coded admission diagnosis. For systems that need to know which was the primary diagnosis, these will be marked with the standard extension primaryDiagnosis (which is a sequence value rather than a flag, 1 = primary diagnosis). Reference(ImmunizationRecommendation | | | )Constraints 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.reasonReference.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.reasonReference.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.reasonReference.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.reasonReference.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
 | ||
| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.reasonReference.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
 | ||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.reasonReference.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.reasonReference.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.reasonReference.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
 | ||
| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.reasonReference.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
 | ||
| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.reasonReference.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
 | ||
| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.reasonReference.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.reasonReference.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
 | ||
| assigner | Σ | 0..1 | Reference() | Element id Encounter.reasonReference.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
 | ||
| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.reasonReference.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
 | ||
| diagnosis | Σ | 0..* | BackboneElement | There are no (further) constraints on this elementElement id Encounter.diagnosisShort description The list of diagnosis relevant to this encounterDefinition The list of diagnosis relevant to this encounter. 
 
 | ||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.diagnosis.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.diagnosis.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
 | ||
| modifierExtension | Σ ?! C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.diagnosis.modifierExtensionShort description Extensions that cannot be ignored even if unrecognizedAlternate names extensions, user content, modifiersDefinition May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
 | ||
| condition | Σ | 1..1 | Reference( | ) | Element id Encounter.diagnosis.conditionShort description The diagnosis or procedure relevant to the encounterAlternate names Admission diagnosis, discharge diagnosis, indicationDefinition Reason the encounter takes place, as specified using information from another resource. For admissions, this is the admission diagnosis. The indication will typically be a Condition (with other resources referenced in the evidence.detail), or a Procedure. For systems that need to know which was the primary diagnosis, these will be marked with the standard extension primaryDiagnosis (which is a sequence value rather than a flag, 1 = primary diagnosis). Reference( | )Constraints 
 
 | ||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
 | ||
| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
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| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
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| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
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| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
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| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
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| assigner | Σ | 0..1 | Reference() | Element id Encounter.diagnosis.condition.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
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| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
 | ||
| use | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.diagnosis.useShort description Role that this diagnosis has within the encounter (e.g. admission, billing, discharge …)Definition Role that this diagnosis has within the encounter (e.g. admission, billing, discharge …). The type of diagnosis this condition represents. 
 
 | |||
| rank | 0..1 | positiveInt | There are no (further) constraints on this elementElement id Encounter.diagnosis.rankShort description Ranking of the diagnosis (for each role type)Definition Ranking of the diagnosis (for each role type). 
 
 | |||
| account | 0..* | Reference(Account) | There are no (further) constraints on this elementElement id Encounter.accountShort description The set of accounts that may be used for billing for this EncounterDefinition The set of accounts that may be used for billing for this Encounter. The billing system may choose to allocate billable items associated with the Encounter to different referenced Accounts based on internal business rules. 
 
 | |||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.account.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.account.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.account.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.account.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
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| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.account.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.account.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.account.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.account.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
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| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.account.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
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| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.account.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
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| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.account.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
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| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.account.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
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| assigner | Σ | 0..1 | Reference() | Element id Encounter.account.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
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| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.account.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
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| hospitalization | 0..1 | BackboneElement | There are no (further) constraints on this elementElement id Encounter.hospitalizationShort description Details about the admission to a healthcare serviceDefinition Details about the admission to a healthcare service. An Encounter may cover more than just the inpatient stay. Contexts such as outpatients, community clinics, and aged care facilities are also included. The duration recorded in the period of this encounter covers the entire scope of this hospitalization record. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.hospitalization.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
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| modifierExtension | Σ ?! C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.hospitalization.modifierExtensionShort description Extensions that cannot be ignored even if unrecognizedAlternate names extensions, user content, modifiersDefinition May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
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| preAdmissionIdentifier | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.hospitalization.preAdmissionIdentifierShort description Pre-admission identifierDefinition Pre-admission identifier. 
 
 | |||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.preAdmissionIdentifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.hospitalization.preAdmissionIdentifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.preAdmissionIdentifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
 | ||
| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.preAdmissionIdentifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
 | ||
| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.hospitalization.preAdmissionIdentifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
 | ||
| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.preAdmissionIdentifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.hospitalization.preAdmissionIdentifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
 | ||
| assigner | Σ | 0..1 | Reference() | Element id Encounter.hospitalization.preAdmissionIdentifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
 | ||
| origin | 0..1 | Reference( | ) | Element id Encounter.hospitalization.originShort description The location/organization from which the patient came before admissionDefinition The location/organization from which the patient came before admission. Reference( | )Constraints 
 
 | |||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
 | ||
| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
 | ||
| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
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| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
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| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
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| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
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| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
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| assigner | Σ | 0..1 | Reference() | Element id Encounter.hospitalization.origin.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
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| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
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| admitSource | 0..1 | CodeableConceptBinding | Element id Encounter.hospitalization.admitSourceShort description From where patient was admitted (physician referral, transfer)Definition From where patient was admitted (physician referral, transfer). The source of admission to a Hospital Provider Spell or a Nursing Episode when the Patient is in a Hospital Site or a Care Home. 
 
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| reAdmission | 0..1 | CodeableConcept | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmissionShort description The type of hospital re-admission that has occurred (if any). If the value is absent, then this is not identified as a readmissionDefinition Whether this hospitalization is a readmission and why if known. The reason for re-admission of this hospitalization encounter. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| coding | Σ | 0..* | Coding | Element id Encounter.hospitalization.reAdmission.codingShort description Code defined by a terminology systemDefinition A reference to a code defined by a terminology system. Allows for alternative encodings within a code system, and translations to other code systems. Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true. Unordered, Open, by system(Value)Constraints 
 
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| snomedCT | Σ | 0..* | Coding | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.coding:snomedCTShort description Code defined by a terminology systemDefinition A reference to a code defined by a terminology system. Allows for alternative encodings within a code system, and translations to other code systems. Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.coding:snomedCT.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.coding:snomedCT.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| system | Σ | 1..1 | uriFixed Value | Element id Encounter.hospitalization.reAdmission.coding:snomedCT.systemShort description Identity of the terminology systemDefinition The identification of the code system that defines the meaning of the symbol in the code. Need to be unambiguous about the source of the definition of the symbol. The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously. 
 http://snomed.info/sctMappings 
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| version | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.coding:snomedCT.versionShort description Version of the system - if relevantDefinition The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged. Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date. 
 
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| code | Σ | 1..1 | code | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.coding:snomedCT.codeShort description Symbol in syntax defined by the systemDefinition A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination). Need to refer to a particular code in the system. 
 
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| display | Σ | 1..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.coding:snomedCT.displayShort description Representation defined by the systemDefinition A representation of the meaning of the code in the system, following the rules of the system. Need to be able to carry a human-readable meaning of the code for readers that do not know the system. 
 
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| userSelected | Σ | 0..1 | boolean | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.coding:snomedCT.userSelectedShort description If this coding was chosen directly by the userDefinition Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays). This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing. Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely. 
 
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| text | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.textShort description Plain text representation of the conceptDefinition A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user. The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source. Very often the text is the same as a displayName of one of the codings. 
 
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| dietPreference | 0..* | CodeableConcept | There are no (further) constraints on this elementElement id Encounter.hospitalization.dietPreferenceShort description Diet preferences reported by the patientDefinition Diet preferences reported by the patient. Used to track patient's diet restrictions and/or preference. For a complete description of the nutrition needs of a patient during their stay, one should use the nutritionOrder resource which links to Encounter. For example, a patient may request both a dairy-free and nut-free diet preference (not mutually exclusive). Medical, cultural or ethical food preferences to help with catering requirements. 
 
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| specialCourtesy | 0..* | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.specialCourtesyShort description Special courtesies (VIP, board member)Definition Special courtesies (VIP, board member). Special courtesies. 
 
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| specialArrangement | 0..* | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.specialArrangementShort description Wheelchair, translator, stretcher, etc.Definition Any special requests that have been made for this hospitalization encounter, such as the provision of specific equipment or other things. Special arrangements. SpecialArrangements (preferred)Constraints 
 
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| destination | 0..1 | Reference( | ) | Element id Encounter.hospitalization.destinationShort description Location/organization to which the patient is dischargedDefinition Location/organization to which the patient is discharged. Reference( | )Constraints 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
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| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
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| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
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| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
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| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
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| assigner | Σ | 0..1 | Reference() | Element id Encounter.hospitalization.destination.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
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| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
 | ||
| dischargeDisposition | 0..1 | CodeableConceptBinding | Element id Encounter.hospitalization.dischargeDispositionShort description Category or kind of location after dischargeDefinition Category or kind of location after discharge. The destination of a Patient on completion of a Hospital Provider Spell, or a note that the Patient died or was a still birth. 
 
 | |||
| location | 0..* | BackboneElement | There are no (further) constraints on this elementElement id Encounter.locationShort description List of locations where the patient has beenDefinition List of locations where the patient has been during this encounter. Virtual encounters can be recorded in the Encounter by specifying a location reference to a location of type "kind" such as "client's home" and an encounter.class = "virtual". 
 
 | |||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.location.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.location.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
 | ||
| modifierExtension | Σ ?! C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.location.modifierExtensionShort description Extensions that cannot be ignored even if unrecognizedAlternate names extensions, user content, modifiersDefinition May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
 | ||
| location | 1..1 | Reference() | Element id Encounter.location.locationShort description Location the encounter takes placeDefinition The location where the encounter takes place. 
 
 | |||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.location.location.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.location.location.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.location.location.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.location.location.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
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| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.location.location.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.location.location.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.location.location.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.location.location.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
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| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.location.location.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
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| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.location.location.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
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| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.location.location.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
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| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.location.location.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
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| assigner | Σ | 0..1 | Reference() | Element id Encounter.location.location.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
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| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.location.location.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
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| status | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.location.statusShort description planned | active | reserved | completedDefinition The status of the participants' presence at the specified location during the period specified. If the participant is no longer at the location, then the period will have an end date/time. When the patient is no longer active at a location, then the period end date is entered, and the status may be changed to completed. The status of the location. EncounterLocationStatus (required)Constraints 
 
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| physicalType | 0..1 | CodeableConcept | There are no (further) constraints on this elementElement id Encounter.location.physicalTypeShort description The physical type of the location (usually the level in the location hierachy - bed room ward etc.)Definition This will be used to specify the required levels (bed/ward/room/etc.) desired to be recorded to simplify either messaging or query. This information is de-normalized from the Location resource to support the easier understanding of the encounter resource and processing in messaging or query. There may be many levels in the hierachy, and this may only pic specific levels that are required for a specific usage scenario. Physical form of the location. 
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| period | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.location.periodShort description Time period during which the patient was present at the locationDefinition Time period during which the patient was present at the location. 
 
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| serviceProvider | 0..1 | Reference() | Element id Encounter.serviceProviderShort description The organization (facility) responsible for this encounterDefinition The organization that is primarily responsible for this Encounter's services. This MAY be the same as the organization on the Patient record, however it could be different, such as if the actor performing the services was from an external organization (which may be billed seperately) for an external consultation. Refer to the example bundle showing an abbreviated set of Encounters for a colonoscopy. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.serviceProvider.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.serviceProvider.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.serviceProvider.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.serviceProvider.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
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| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.serviceProvider.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.serviceProvider.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.serviceProvider.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.serviceProvider.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
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| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.serviceProvider.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
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| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.serviceProvider.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
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| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.serviceProvider.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
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| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.serviceProvider.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
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| assigner | Σ | 0..1 | Reference() | Element id Encounter.serviceProvider.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
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| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.serviceProvider.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
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| partOf | 0..1 | Reference() | Element id Encounter.partOfShort description Another Encounter this encounter is part ofDefinition Another Encounter of which this encounter is a part of (administratively or in time). This is also used for associating a child's encounter back to the mother's encounter. Refer to the Notes section in the Patient resource for further details. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.partOf.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.partOf.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.partOf.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.partOf.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
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| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.partOf.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.partOf.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.partOf.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.partOf.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
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| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.partOf.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
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| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.partOf.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
 | ||
| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.partOf.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.partOf.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
 | ||
| assigner | Σ | 0..1 | Reference() | Element id Encounter.partOf.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
 | ||
| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.partOf.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
 | 
| UKCoreEncounter (Encounter) | C | Encounter | There are no (further) constraints on this elementElement id EncounterShort description An interaction during which services are provided to the patientAlternate names VisitDefinition An interaction between a patient and healthcare provider(s) for the purpose of providing healthcare service(s) or assessing the health status of a patient. 
 
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| id | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.idShort description Logical id of this artifactDefinition The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes. The only time that a resource does not have an id is when it is being submitted to the server using a create operation. | ||
| meta | Σ | 0..1 | Meta | There are no (further) constraints on this elementElement id Encounter.metaShort description Metadata about the resourceDefinition The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource. 
 | ||
| implicitRules | Σ ?! | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.implicitRulesShort description A set of rules under which this content was createdDefinition A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc. Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc. 
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| language | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.languageShort description Language of the resource contentDefinition The base language in which the resource is written. Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute). A human language. 
 
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| text | 0..1 | Narrative | There are no (further) constraints on this elementElement id Encounter.textShort description Text summary of the resource, for human interpretationAlternate names narrative, html, xhtml, displayDefinition A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety. Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later. 
 
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| contained | 0..* | Resource | There are no (further) constraints on this elementElement id Encounter.containedShort description Contained, inline ResourcesAlternate names inline resources, anonymous resources, contained resourcesDefinition These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope. This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
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| modifierExtension | ?! C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.modifierExtensionShort description Extensions that cannot be ignoredAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
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| identifier | Σ | 0..* | Identifier | There are no (further) constraints on this elementElement id Encounter.identifierShort description Identifier(s) by which this encounter is knownDefinition Identifier(s) by which this encounter is known. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
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| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
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| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
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| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
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| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
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| assigner | Σ | 0..1 | Reference() | Element id Encounter.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
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| status | Σ ?! | 1..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.statusShort description planned | arrived | triaged | in-progress | onleave | finished | cancelled +Definition planned | arrived | triaged | in-progress | onleave | finished | cancelled +. Note that internal business rules will determine the appropriate transitions that may occur between statuses (and also classes). Current state of the encounter. 
 
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| statusHistory | 0..* | BackboneElement | There are no (further) constraints on this elementElement id Encounter.statusHistoryShort description List of past encounter statusesDefinition The status history permits the encounter resource to contain the status history without needing to read through the historical versions of the resource, or even have the server store them. The current status is always found in the current version of the resource, not the status history. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.statusHistory.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.statusHistory.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
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| modifierExtension | Σ ?! C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.statusHistory.modifierExtensionShort description Extensions that cannot be ignored even if unrecognizedAlternate names extensions, user content, modifiersDefinition May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
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| status | 1..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.statusHistory.statusShort description planned | arrived | triaged | in-progress | onleave | finished | cancelled +Definition planned | arrived | triaged | in-progress | onleave | finished | cancelled +. Current state of the encounter. 
 
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| period | 1..1 | Period | There are no (further) constraints on this elementElement id Encounter.statusHistory.periodShort description The time that the episode was in the specified statusDefinition The time that the episode was in the specified status. 
 
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| class | Σ | 1..1 | CodingBinding | There are no (further) constraints on this elementElement id Encounter.classShort description Classification of patient encounterDefinition Concepts representing classification of patient encounter such as ambulatory (outpatient), inpatient, emergency, home health or others due to local variations. Classification of the encounter. v3.ActEncounterCode (extensible)Constraints 
 
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| classHistory | 0..* | BackboneElement | There are no (further) constraints on this elementElement id Encounter.classHistoryShort description List of past encounter classesDefinition The class history permits the tracking of the encounters transitions without needing to go through the resource history. This would be used for a case where an admission starts of as an emergency encounter, then transitions into an inpatient scenario. Doing this and not restarting a new encounter ensures that any lab/diagnostic results can more easily follow the patient and not require re-processing and not get lost or cancelled during a kind of discharge from emergency to inpatient. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.classHistory.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.classHistory.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
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| modifierExtension | Σ ?! C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.classHistory.modifierExtensionShort description Extensions that cannot be ignored even if unrecognizedAlternate names extensions, user content, modifiersDefinition May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
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| class | 1..1 | CodingBinding | There are no (further) constraints on this elementElement id Encounter.classHistory.classShort description inpatient | outpatient | ambulatory | emergency +Definition inpatient | outpatient | ambulatory | emergency +. Classification of the encounter. v3.ActEncounterCode (extensible)Constraints 
 
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| period | 1..1 | Period | There are no (further) constraints on this elementElement id Encounter.classHistory.periodShort description The time that the episode was in the specified classDefinition The time that the episode was in the specified class. 
 
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| type | Σ | 0..* | CodeableConcept | There are no (further) constraints on this elementElement id Encounter.typeShort description Specific type of encounterDefinition Specific type of encounter (e.g. e-mail consultation, surgical day-care, skilled nursing, rehabilitation). Since there are many ways to further classify encounters, this element is 0..*. The type of encounter. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.type.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.type.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| coding | Σ | 0..* | Coding | Element id Encounter.type.codingShort description Code defined by a terminology systemDefinition A reference to a code defined by a terminology system. Allows for alternative encodings within a code system, and translations to other code systems. Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true. Unordered, Open, by system(Value)Constraints 
 
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| snomedCT | Σ | 0..* | CodingBinding | Element id Encounter.type.coding:snomedCTShort description Code defined by a terminology systemDefinition A reference to a code defined by a terminology system. Allows for alternative encodings within a code system, and translations to other code systems. Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true. A code from the SNOMED Clinical Terminology UK coding system that describes an encounter between a care professional and the patient (or patient's record). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.type.coding:snomedCT.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.type.coding:snomedCT.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| system | Σ | 1..1 | uriFixed Value | Element id Encounter.type.coding:snomedCT.systemShort description Identity of the terminology systemDefinition The identification of the code system that defines the meaning of the symbol in the code. Need to be unambiguous about the source of the definition of the symbol. The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously. 
 http://snomed.info/sctMappings 
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| version | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.type.coding:snomedCT.versionShort description Version of the system - if relevantDefinition The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged. Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date. 
 
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| code | Σ | 1..1 | code | There are no (further) constraints on this elementElement id Encounter.type.coding:snomedCT.codeShort description Symbol in syntax defined by the systemDefinition A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination). Need to refer to a particular code in the system. 
 
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| display | Σ | 1..1 | string | There are no (further) constraints on this elementElement id Encounter.type.coding:snomedCT.displayShort description Representation defined by the systemDefinition A representation of the meaning of the code in the system, following the rules of the system. Need to be able to carry a human-readable meaning of the code for readers that do not know the system. 
 
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| userSelected | Σ | 0..1 | boolean | There are no (further) constraints on this elementElement id Encounter.type.coding:snomedCT.userSelectedShort description If this coding was chosen directly by the userDefinition Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays). This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing. Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely. 
 
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| text | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.type.textShort description Plain text representation of the conceptDefinition A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user. The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source. Very often the text is the same as a displayName of one of the codings. 
 
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| serviceType | Σ | 0..1 | CodeableConcept | There are no (further) constraints on this elementElement id Encounter.serviceTypeShort description Specific type of serviceDefinition Broad categorization of the service that is to be provided (e.g. cardiology). Broad categorization of the service that is to be provided. 
 
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| priority | 0..1 | CodeableConcept | There are no (further) constraints on this elementElement id Encounter.priorityShort description Indicates the urgency of the encounterDefinition Indicates the urgency of the encounter. Indicates the urgency of the encounter. 
 
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| subject | Σ | 0..1 | Reference(Group | ) | Element id Encounter.subjectShort description The patient or group present at the encounterAlternate names patientDefinition The patient or group present at the encounter. While the encounter is always about the patient, the patient might not actually be known in all contexts of use, and there may be a group of patients that could be anonymous (such as in a group therapy for Alcoholics Anonymous - where the recording of the encounter could be used for billing on the number of people/staff and not important to the context of the specific patients) or alternately in veterinary care a herd of sheep receiving treatment (where the animals are not individually tracked). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.subject.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.subject.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.subject.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.subject.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
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| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.subject.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.subject.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.subject.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.subject.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
 | ||
| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.subject.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
 | ||
| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.subject.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
 | ||
| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.subject.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.subject.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
 | ||
| assigner | Σ | 0..1 | Reference() | Element id Encounter.subject.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
 | ||
| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.subject.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
 | ||
| episodeOfCare | Σ | 0..* | Reference(EpisodeOfCare) | There are no (further) constraints on this elementElement id Encounter.episodeOfCareShort description Episode(s) of care that this encounter should be recorded againstDefinition Where a specific encounter should be classified as a part of a specific episode(s) of care this field should be used. This association can facilitate grouping of related encounters together for a specific purpose, such as government reporting, issue tracking, association via a common problem. The association is recorded on the encounter as these are typically created after the episode of care and grouped on entry rather than editing the episode of care to append another encounter to it (the episode of care could span years). 
 
 | ||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
 | ||
| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
 | ||
| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
 | ||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
 | ||
| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
 | ||
| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
 | ||
| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
 | ||
| assigner | Σ | 0..1 | Reference() | Element id Encounter.episodeOfCare.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
 | ||
| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.episodeOfCare.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
 | ||
| basedOn | 0..* | Reference(ServiceRequest) | There are no (further) constraints on this elementElement id Encounter.basedOnShort description The ServiceRequest that initiated this encounterAlternate names incomingReferralDefinition The request this encounter satisfies (e.g. incoming referral or procedure request). 
 
 | |||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.basedOn.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.basedOn.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.basedOn.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
 | ||
| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.basedOn.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
 | ||
| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.basedOn.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
 | ||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.basedOn.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.basedOn.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.basedOn.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
 | ||
| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.basedOn.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
 | ||
| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.basedOn.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
 | ||
| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.basedOn.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.basedOn.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
 | ||
| assigner | Σ | 0..1 | Reference() | Element id Encounter.basedOn.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
 | ||
| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.basedOn.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
 | ||
| participant | Σ | 0..* | BackboneElement | There are no (further) constraints on this elementElement id Encounter.participantShort description List of participants involved in the encounterDefinition The list of people responsible for providing the service. 
 
 | ||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.participant.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.participant.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
 | ||
| modifierExtension | Σ ?! C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.participant.modifierExtensionShort description Extensions that cannot be ignored even if unrecognizedAlternate names extensions, user content, modifiersDefinition May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
 | ||
| type | Σ | 0..* | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.participant.typeShort description Role of participant in encounterDefinition Role of participant in encounter. The participant type indicates how an individual participates in an encounter. It includes non-practitioner participants, and for practitioners this is to describe the action type in the context of this encounter (e.g. Admitting Dr, Attending Dr, Translator, Consulting Dr). This is different to the practitioner roles which are functional roles, derived from terms of employment, education, licensing, etc. Role of participant in encounter. 
 
 | ||
| period | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.participant.periodShort description Period of time during the encounter that the participant participatedDefinition The period of time that the specified participant participated in the encounter. These can overlap or be sub-sets of the overall encounter's period. 
 
 | |||
| individual | Σ | 0..1 | Reference( | | ) | Element id Encounter.participant.individualShort description Persons involved in the encounter other than the patientDefinition Persons involved in the encounter other than the patient. Reference( | | )Constraints 
 
 | ||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.participant.individual.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.participant.individual.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.participant.individual.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
 | ||
| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.participant.individual.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
 | ||
| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.participant.individual.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
 | ||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.participant.individual.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.participant.individual.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.participant.individual.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
 | ||
| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.participant.individual.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
 | ||
| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.participant.individual.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
 | ||
| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.participant.individual.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.participant.individual.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
 | ||
| assigner | Σ | 0..1 | Reference() | Element id Encounter.participant.individual.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
 | ||
| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.participant.individual.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
 | ||
| appointment | Σ | 0..* | Reference(Appointment) | There are no (further) constraints on this elementElement id Encounter.appointmentShort description The appointment that scheduled this encounterDefinition The appointment that scheduled this encounter. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.appointment.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.appointment.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.appointment.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
 | ||
| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.appointment.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
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| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.appointment.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.appointment.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.appointment.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.appointment.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
 | ||
| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.appointment.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
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| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.appointment.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
 | ||
| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.appointment.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.appointment.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
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| assigner | Σ | 0..1 | Reference() | Element id Encounter.appointment.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
 | ||
| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.appointment.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
 | ||
| period | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.periodShort description The start and end time of the encounterDefinition The start and end time of the encounter. If not (yet) known, the end of the Period may be omitted. 
 
 | |||
| length | 0..1 | Duration | There are no (further) constraints on this elementElement id Encounter.lengthShort description Quantity of time the encounter lasted (less time absent)Definition Quantity of time the encounter lasted. This excludes the time during leaves of absence. May differ from the time the Encounter.period lasted because of leave of absence. 
 
 | |||
| reasonCode | Σ | 0..* | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.reasonCodeShort description Coded reason the encounter takes placeAlternate names Indication, Admission diagnosisDefinition Reason the encounter takes place, expressed as a code. For admissions, this can be used for a coded admission diagnosis. For systems that need to know which was the primary diagnosis, these will be marked with the standard extension primaryDiagnosis (which is a sequence value rather than a flag, 1 = primary diagnosis). Reason why the encounter takes place. EncounterReasonCodes (preferred)Constraints 
 
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| reasonReference | Σ | 0..* | Reference(ImmunizationRecommendation | | | ) | Element id Encounter.reasonReferenceShort description Reason the encounter takes place (reference)Alternate names Indication, Admission diagnosisDefinition Reason the encounter takes place, expressed as a code. For admissions, this can be used for a coded admission diagnosis. For systems that need to know which was the primary diagnosis, these will be marked with the standard extension primaryDiagnosis (which is a sequence value rather than a flag, 1 = primary diagnosis). Reference(ImmunizationRecommendation | | | )Constraints 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.reasonReference.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.reasonReference.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.reasonReference.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.reasonReference.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
 | ||
| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.reasonReference.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
 | ||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.reasonReference.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.reasonReference.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.reasonReference.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
 | ||
| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.reasonReference.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
 | ||
| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.reasonReference.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
 | ||
| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.reasonReference.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.reasonReference.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
 | ||
| assigner | Σ | 0..1 | Reference() | Element id Encounter.reasonReference.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
 | ||
| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.reasonReference.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
 | ||
| diagnosis | Σ | 0..* | BackboneElement | There are no (further) constraints on this elementElement id Encounter.diagnosisShort description The list of diagnosis relevant to this encounterDefinition The list of diagnosis relevant to this encounter. 
 
 | ||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.diagnosis.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.diagnosis.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
 | ||
| modifierExtension | Σ ?! C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.diagnosis.modifierExtensionShort description Extensions that cannot be ignored even if unrecognizedAlternate names extensions, user content, modifiersDefinition May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
 | ||
| condition | Σ | 1..1 | Reference( | ) | Element id Encounter.diagnosis.conditionShort description The diagnosis or procedure relevant to the encounterAlternate names Admission diagnosis, discharge diagnosis, indicationDefinition Reason the encounter takes place, as specified using information from another resource. For admissions, this is the admission diagnosis. The indication will typically be a Condition (with other resources referenced in the evidence.detail), or a Procedure. For systems that need to know which was the primary diagnosis, these will be marked with the standard extension primaryDiagnosis (which is a sequence value rather than a flag, 1 = primary diagnosis). Reference( | )Constraints 
 
 | ||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
 | ||
| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
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| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
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| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
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| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
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| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
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| assigner | Σ | 0..1 | Reference() | Element id Encounter.diagnosis.condition.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
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| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.diagnosis.condition.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
 | ||
| use | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.diagnosis.useShort description Role that this diagnosis has within the encounter (e.g. admission, billing, discharge …)Definition Role that this diagnosis has within the encounter (e.g. admission, billing, discharge …). The type of diagnosis this condition represents. 
 
 | |||
| rank | 0..1 | positiveInt | There are no (further) constraints on this elementElement id Encounter.diagnosis.rankShort description Ranking of the diagnosis (for each role type)Definition Ranking of the diagnosis (for each role type). 
 
 | |||
| account | 0..* | Reference(Account) | There are no (further) constraints on this elementElement id Encounter.accountShort description The set of accounts that may be used for billing for this EncounterDefinition The set of accounts that may be used for billing for this Encounter. The billing system may choose to allocate billable items associated with the Encounter to different referenced Accounts based on internal business rules. 
 
 | |||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.account.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.account.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.account.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.account.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
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| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.account.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.account.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.account.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.account.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
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| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.account.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
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| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.account.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
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| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.account.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
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| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.account.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
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| assigner | Σ | 0..1 | Reference() | Element id Encounter.account.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
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| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.account.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
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| hospitalization | 0..1 | BackboneElement | There are no (further) constraints on this elementElement id Encounter.hospitalizationShort description Details about the admission to a healthcare serviceDefinition Details about the admission to a healthcare service. An Encounter may cover more than just the inpatient stay. Contexts such as outpatients, community clinics, and aged care facilities are also included. The duration recorded in the period of this encounter covers the entire scope of this hospitalization record. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.hospitalization.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
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| modifierExtension | Σ ?! C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.hospitalization.modifierExtensionShort description Extensions that cannot be ignored even if unrecognizedAlternate names extensions, user content, modifiersDefinition May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
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| preAdmissionIdentifier | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.hospitalization.preAdmissionIdentifierShort description Pre-admission identifierDefinition Pre-admission identifier. 
 
 | |||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.preAdmissionIdentifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.hospitalization.preAdmissionIdentifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.preAdmissionIdentifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
 | ||
| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.preAdmissionIdentifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
 | ||
| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.hospitalization.preAdmissionIdentifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
 | ||
| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.preAdmissionIdentifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.hospitalization.preAdmissionIdentifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
 | ||
| assigner | Σ | 0..1 | Reference() | Element id Encounter.hospitalization.preAdmissionIdentifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
 | ||
| origin | 0..1 | Reference( | ) | Element id Encounter.hospitalization.originShort description The location/organization from which the patient came before admissionDefinition The location/organization from which the patient came before admission. Reference( | )Constraints 
 
 | |||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
 | ||
| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
 | ||
| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
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| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
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| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
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| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
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| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
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| assigner | Σ | 0..1 | Reference() | Element id Encounter.hospitalization.origin.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
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| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.origin.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
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| admitSource | 0..1 | CodeableConceptBinding | Element id Encounter.hospitalization.admitSourceShort description From where patient was admitted (physician referral, transfer)Definition From where patient was admitted (physician referral, transfer). The source of admission to a Hospital Provider Spell or a Nursing Episode when the Patient is in a Hospital Site or a Care Home. 
 
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| reAdmission | 0..1 | CodeableConcept | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmissionShort description The type of hospital re-admission that has occurred (if any). If the value is absent, then this is not identified as a readmissionDefinition Whether this hospitalization is a readmission and why if known. The reason for re-admission of this hospitalization encounter. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| coding | Σ | 0..* | Coding | Element id Encounter.hospitalization.reAdmission.codingShort description Code defined by a terminology systemDefinition A reference to a code defined by a terminology system. Allows for alternative encodings within a code system, and translations to other code systems. Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true. Unordered, Open, by system(Value)Constraints 
 
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| snomedCT | Σ | 0..* | Coding | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.coding:snomedCTShort description Code defined by a terminology systemDefinition A reference to a code defined by a terminology system. Allows for alternative encodings within a code system, and translations to other code systems. Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.coding:snomedCT.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.coding:snomedCT.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| system | Σ | 1..1 | uriFixed Value | Element id Encounter.hospitalization.reAdmission.coding:snomedCT.systemShort description Identity of the terminology systemDefinition The identification of the code system that defines the meaning of the symbol in the code. Need to be unambiguous about the source of the definition of the symbol. The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously. 
 http://snomed.info/sctMappings 
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| version | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.coding:snomedCT.versionShort description Version of the system - if relevantDefinition The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged. Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date. 
 
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| code | Σ | 1..1 | code | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.coding:snomedCT.codeShort description Symbol in syntax defined by the systemDefinition A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination). Need to refer to a particular code in the system. 
 
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| display | Σ | 1..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.coding:snomedCT.displayShort description Representation defined by the systemDefinition A representation of the meaning of the code in the system, following the rules of the system. Need to be able to carry a human-readable meaning of the code for readers that do not know the system. 
 
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| userSelected | Σ | 0..1 | boolean | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.coding:snomedCT.userSelectedShort description If this coding was chosen directly by the userDefinition Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays). This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing. Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely. 
 
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| text | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.reAdmission.textShort description Plain text representation of the conceptDefinition A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user. The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source. Very often the text is the same as a displayName of one of the codings. 
 
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| dietPreference | 0..* | CodeableConcept | There are no (further) constraints on this elementElement id Encounter.hospitalization.dietPreferenceShort description Diet preferences reported by the patientDefinition Diet preferences reported by the patient. Used to track patient's diet restrictions and/or preference. For a complete description of the nutrition needs of a patient during their stay, one should use the nutritionOrder resource which links to Encounter. For example, a patient may request both a dairy-free and nut-free diet preference (not mutually exclusive). Medical, cultural or ethical food preferences to help with catering requirements. 
 
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| specialCourtesy | 0..* | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.specialCourtesyShort description Special courtesies (VIP, board member)Definition Special courtesies (VIP, board member). Special courtesies. 
 
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| specialArrangement | 0..* | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.specialArrangementShort description Wheelchair, translator, stretcher, etc.Definition Any special requests that have been made for this hospitalization encounter, such as the provision of specific equipment or other things. Special arrangements. SpecialArrangements (preferred)Constraints 
 
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| destination | 0..1 | Reference( | ) | Element id Encounter.hospitalization.destinationShort description Location/organization to which the patient is dischargedDefinition Location/organization to which the patient is discharged. Reference( | )Constraints 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
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| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
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| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
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| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
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| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
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| assigner | Σ | 0..1 | Reference() | Element id Encounter.hospitalization.destination.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
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| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.hospitalization.destination.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
 | ||
| dischargeDisposition | 0..1 | CodeableConceptBinding | Element id Encounter.hospitalization.dischargeDispositionShort description Category or kind of location after dischargeDefinition Category or kind of location after discharge. The destination of a Patient on completion of a Hospital Provider Spell, or a note that the Patient died or was a still birth. 
 
 | |||
| location | 0..* | BackboneElement | There are no (further) constraints on this elementElement id Encounter.locationShort description List of locations where the patient has beenDefinition List of locations where the patient has been during this encounter. Virtual encounters can be recorded in the Encounter by specifying a location reference to a location of type "kind" such as "client's home" and an encounter.class = "virtual". 
 
 | |||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.location.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.location.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
 | ||
| modifierExtension | Σ ?! C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.location.modifierExtensionShort description Extensions that cannot be ignored even if unrecognizedAlternate names extensions, user content, modifiersDefinition May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. 
 
 | ||
| location | 1..1 | Reference() | Element id Encounter.location.locationShort description Location the encounter takes placeDefinition The location where the encounter takes place. 
 
 | |||
| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.location.location.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.location.location.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.location.location.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.location.location.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
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| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.location.location.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.location.location.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.location.location.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.location.location.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
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| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.location.location.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
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| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.location.location.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
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| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.location.location.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
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| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.location.location.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
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| assigner | Σ | 0..1 | Reference() | Element id Encounter.location.location.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
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| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.location.location.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
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| status | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.location.statusShort description planned | active | reserved | completedDefinition The status of the participants' presence at the specified location during the period specified. If the participant is no longer at the location, then the period will have an end date/time. When the patient is no longer active at a location, then the period end date is entered, and the status may be changed to completed. The status of the location. EncounterLocationStatus (required)Constraints 
 
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| physicalType | 0..1 | CodeableConcept | There are no (further) constraints on this elementElement id Encounter.location.physicalTypeShort description The physical type of the location (usually the level in the location hierachy - bed room ward etc.)Definition This will be used to specify the required levels (bed/ward/room/etc.) desired to be recorded to simplify either messaging or query. This information is de-normalized from the Location resource to support the easier understanding of the encounter resource and processing in messaging or query. There may be many levels in the hierachy, and this may only pic specific levels that are required for a specific usage scenario. Physical form of the location. 
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| period | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.location.periodShort description Time period during which the patient was present at the locationDefinition Time period during which the patient was present at the location. 
 
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| serviceProvider | 0..1 | Reference() | Element id Encounter.serviceProviderShort description The organization (facility) responsible for this encounterDefinition The organization that is primarily responsible for this Encounter's services. This MAY be the same as the organization on the Patient record, however it could be different, such as if the actor performing the services was from an external organization (which may be billed seperately) for an external consultation. Refer to the example bundle showing an abbreviated set of Encounters for a colonoscopy. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.serviceProvider.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.serviceProvider.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.serviceProvider.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.serviceProvider.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
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| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.serviceProvider.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.serviceProvider.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.serviceProvider.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.serviceProvider.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
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| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.serviceProvider.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
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| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.serviceProvider.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
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| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.serviceProvider.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
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| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.serviceProvider.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
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| assigner | Σ | 0..1 | Reference() | Element id Encounter.serviceProvider.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
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| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.serviceProvider.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
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| partOf | 0..1 | Reference() | Element id Encounter.partOfShort description Another Encounter this encounter is part ofDefinition Another Encounter of which this encounter is a part of (administratively or in time). This is also used for associating a child's encounter back to the mother's encounter. Refer to the Notes section in the Patient resource for further details. 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.partOf.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
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| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.partOf.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
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| reference | Σ C | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.partOf.referenceShort description Literal reference, Relative, internal or absolute URLDefinition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. The cardinality or value of this element may be affected by these constraints: ref-1Constraints 
 
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this elementElement id Encounter.partOf.typeShort description Type the reference refers to (e.g. "Patient")Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Aa resource (or, for logical models, the URI of the logical model). 
 
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| identifier | Σ | 0..1 | Identifier | There are no (further) constraints on this elementElement id Encounter.partOf.identifierShort description Logical reference, when literal reference is not knownDefinition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). 
 
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| id | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.partOf.identifier.idShort description Unique id for inter-element referencingDefinition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. 
 | |||
| extension | C | 0..* | Extension | There are no (further) constraints on this elementElement id Encounter.partOf.identifier.extensionShort description Additional content defined by implementationsAlternate names extensions, user contentDefinition May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Unordered, Open, by url(Value) Extensions are always sliced by (at least) urlConstraints 
 
 | ||
| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this elementElement id Encounter.partOf.identifier.useShort description usual | official | temp | secondary | old (If known)Definition The purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Identifies the purpose for this identifier, if known . 
 
 | ||
| type | Σ | 0..1 | CodeableConceptBinding | There are no (further) constraints on this elementElement id Encounter.partOf.identifier.typeShort description Description of identifierDefinition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible)Constraints 
 
 | ||
| system | Σ | 0..1 | uri | There are no (further) constraints on this elementElement id Encounter.partOf.identifier.systemShort description The namespace for the identifier valueDefinition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive. 
 General http://www.acme.com/identifiers/patientMappings 
 | ||
| value | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.partOf.identifier.valueShort description The value that is uniqueDefinition The portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. 
 General 123456Mappings 
 | ||
| period | Σ | 0..1 | Period | There are no (further) constraints on this elementElement id Encounter.partOf.identifier.periodShort description Time period when id is/was valid for useDefinition Time period during which identifier is/was valid for use. 
 
 | ||
| assigner | Σ | 0..1 | Reference() | Element id Encounter.partOf.identifier.assignerShort description Organization that issued id (may be just text)Definition Organization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. 
 
 | ||
| display | Σ | 0..1 | string | There are no (further) constraints on this elementElement id Encounter.partOf.displayShort description Text alternative for the resourceDefinition Plain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. 
 
 | 
 
                        