This UK Core profile is a restraint on the International FHIR resource AllergyIntolerance, and defines the constraints, extensions, and minimal set of data to query and retrieve allergy information.
This profile allows a record of a clinical assessment of an allergy or intolerance; a propensity, or a potential risk to an individual, to have an adverse reaction on future exposure to the specified substance, or class of substance.
Where a propensity is identified, to record information or evidence about a reaction event that is characterised by any harmful or undesirable physiological response that is specific to the individual and triggered by exposure of an individual to the identified substance or class of substance.
Substances include but are not limited to a therapeutic substance administered correctly at an appropriate dosage for the individual; food; material derived from plants or animals; or venom from insect stings.
This resource is used to record physical conditions. It SHALL NOT be used to record preferences for or against types of treatment, for example on religious grounds. For such use cases consider the use of the FHIR Consent resource.
| UKCoreAllergyIntolerance (AllergyIntolerance) | C | AllergyIntolerance | There are no (further) constraints on this element Element idAllergyIntoleranceShort description Allergy or Intolerance (generally: Risk of adverse reaction to a substance) Alternate namesAllergy, Intolerance, Adverse Reaction DefinitionRisk of harmful or undesirable, physiological response which is unique to an individual and associated with exposure to a substance. Substances include, but are not limited to: a therapeutic substance administered correctly at an appropriate dosage for the individual; food; material derived from plants or animals; or venom from insect stings.
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| id | Σ | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.idShort description Logical id of this artifact DefinitionThe 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 element Element idAllergyIntolerance.metaShort description Metadata about the resource DefinitionThe 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 element Element idAllergyIntolerance.implicitRulesShort description A set of rules under which this content was created DefinitionA 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 element Element idAllergyIntolerance.languageShort description Language of the resource content DefinitionThe 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 element Element idAllergyIntolerance.textShort description Text summary of the resource, for human interpretation Alternate namesnarrative, html, xhtml, display DefinitionA 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 element Element idAllergyIntolerance.containedShort description Contained, inline Resources Alternate namesinline resources, anonymous resources, contained resources DefinitionThese 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 | Element idAllergyIntolerance.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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. Unordered, Open, by url(Value) Constraints
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| evidence | C | 0..* | Extension(Reference(DiagnosticReport)) | Element idAllergyIntolerance.extension:evidenceShort description A reference to results of investigations that confirmed the certainty of the diagnosis. Alternate namesextensions, user content DefinitionA reference to results of investigations that confirmed the certainty of the diagnosis. 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. Extension(Reference(DiagnosticReport)) Extension URLhttps://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-Evidence ConditionsThe cardinality or value of this element may be affected by these constraints: ele-1 Constraints
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| modifierExtension | ?! C | 0..* | Extension | There are no (further) constraints on this element Element idAllergyIntolerance.modifierExtensionShort description Extensions that cannot be ignored Alternate namesextensions, user content DefinitionMay 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 element Element idAllergyIntolerance.identifierShort description External ids for this item DefinitionBusiness identifiers assigned to this AllergyIntolerance by the performer or other systems which remain constant as the resource is updated and propagates from server to server. Allows identification of the AllergyIntolerance as it is known by various participating systems and in a way that remains consistent across servers. This is a business identifier, not a resource identifier (see discussion). It is best practice for the identifier to only appear on a single resource instance, however business practices may occasionally dictate that multiple resource instances with the same identifier can exist - possibly even with different resource types. For example, multiple Patient and a Person resource instance might share the same social insurance number.
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| id | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.identifier.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.identifier.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this element Element idAllergyIntolerance.identifier.useShort description usual | official | temp | secondary | old (If known) DefinitionThe 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 element Element idAllergyIntolerance.identifier.typeShort description Description of identifier DefinitionA 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 element Element idAllergyIntolerance.identifier.systemShort description The namespace for the identifier value DefinitionEstablishes 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 element Element idAllergyIntolerance.identifier.valueShort description The value that is unique DefinitionThe 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 element Element idAllergyIntolerance.identifier.periodShort description Time period when id is/was valid for use DefinitionTime period during which identifier is/was valid for use.
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| assigner | Σ | 0..1 | Reference() | Element idAllergyIntolerance.identifier.assignerShort description Organization that issued id (may be just text) DefinitionOrganization 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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| clinicalStatus | Σ ?! C | 0..1 | CodeableConceptBinding | There are no (further) constraints on this element Element idAllergyIntolerance.clinicalStatusShort description active | inactive | resolved DefinitionThe clinical status of the allergy or intolerance. Refer to discussion if clincalStatus is missing data. The data type is CodeableConcept because clinicalStatus has some clinical judgment involved, such that there might need to be more specificity than the required FHIR value set allows. For example, a SNOMED coding might allow for additional specificity. The clinical status of the allergy or intolerance. AllergyIntoleranceClinicalStatusCodes (required) ConditionsThe cardinality or value of this element may be affected by these constraints: ait-1, ait-2 Constraints
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| id | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.clinicalStatus.idShort description Unique id for inter-element referencing DefinitionUnique 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 | Element idAllergyIntolerance.clinicalStatus.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
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| allergyIntoleranceEnd | C | 0..1 | Extension(Complex) | Element idAllergyIntolerance.clinicalStatus.extension:allergyIntoleranceEndShort description Supports the date when the allergy or intolerance was no longer valid, and/or, the reason why the allergy or intolerance is no longer valid. Alternate namesextensions, user content DefinitionSupports the date when the allergy or intolerance was no longer valid, and/or, the reason why the allergy or intolerance is no longer valid. 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. Extension(Complex) Extension URLhttps://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-AllergyIntoleranceEnd ConditionsThe cardinality or value of this element may be affected by these constraints: ele-1 Constraints
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| coding | Σ | 0..* | Coding | There are no (further) constraints on this element Element idAllergyIntolerance.clinicalStatus.codingShort description Code defined by a terminology system DefinitionA 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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| text | Σ | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.clinicalStatus.textShort description Plain text representation of the concept DefinitionA 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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| verificationStatus | Σ ?! C | 0..1 | CodeableConceptBinding | There are no (further) constraints on this element Element idAllergyIntolerance.verificationStatusShort description unconfirmed | confirmed | refuted | entered-in-error DefinitionAssertion about certainty associated with the propensity, or potential risk, of a reaction to the identified substance (including pharmaceutical product). The data type is CodeableConcept because verificationStatus has some clinical judgment involved, such that there might need to be more specificity than the required FHIR value set allows. For example, a SNOMED coding might allow for additional specificity. Assertion about certainty associated with a propensity, or potential risk, of a reaction to the identified substance. AllergyIntoleranceVerificationStatusCodes (required) ConditionsThe cardinality or value of this element may be affected by these constraints: ait-1, ait-2 Constraints
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| type | Σ | 0..1 | codeBinding | There are no (further) constraints on this element Element idAllergyIntolerance.typeShort description allergy | intolerance - Underlying mechanism (if known) Alternate namesCategory, Class DefinitionIdentification of the underlying physiological mechanism for the reaction risk. Allergic (typically immune-mediated) reactions have been traditionally regarded as an indicator for potential escalation to significant future risk. Contemporary knowledge suggests that some reactions previously thought to be immune-mediated are, in fact, non-immune, but in some cases can still pose a life threatening risk. It is acknowledged that many clinicians might not be in a position to distinguish the mechanism of a particular reaction. Often the term "allergy" is used rather generically and may overlap with the use of "intolerance" - in practice the boundaries between these two concepts might not be well-defined or understood. This data element is included nevertheless, because many legacy systems have captured this attribute. Immunologic testing may provide supporting evidence for the basis of the reaction and the causative substance, but no tests are 100% sensitive or specific for sensitivity to a particular substance. If, as is commonly the case, it is unclear whether the reaction is due to an allergy or an intolerance, then the type element should be omitted from the resource. Identification of the underlying physiological mechanism for a Reaction Risk. AllergyIntoleranceType (required) Constraints
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| category | Σ | 0..* | codeBinding | There are no (further) constraints on this element Element idAllergyIntolerance.categoryShort description food | medication | environment | biologic Alternate namesCategory, Type, Reaction Type, Class DefinitionCategory of the identified substance. This data element has been included because it is currently being captured in some clinical systems. This data can be derived from the substance where coding systems are used, and is effectively redundant in that situation. When searching on category, consider the implications of AllergyIntolerance resources without a category. For example, when searching on category = medication, medication allergies that don't have a category valued will not be returned. Refer to search for more information on how to search category with a :missing modifier to get allergies that don't have a category. Additionally, category should be used with caution because category can be subjective based on the sender. Category of an identified substance associated with allergies or intolerances. AllergyIntoleranceCategory (required) Constraints
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| criticality | Σ | 0..1 | codeBinding | There are no (further) constraints on this element Element idAllergyIntolerance.criticalityShort description low | high | unable-to-assess Alternate namesSeverity, Seriousness, Contra-indication, Risk DefinitionEstimate of the potential clinical harm, or seriousness, of the reaction to the identified substance. The default criticality value for any propensity to an adverse reaction should be 'Low Risk', indicating at the very least a relative contraindication to deliberate or voluntary exposure to the substance. 'High Risk' is flagged if the clinician has identified a propensity for a more serious or potentially life-threatening reaction, such as anaphylaxis, and implies an absolute contraindication to deliberate or voluntary exposure to the substance. If this element is missing, the criticality is unknown (though it may be known elsewhere). Systems that capture a severity at the condition level are actually representing the concept of criticality whereas the severity documented at the reaction level is representing the true reaction severity. Existing systems that are capturing both condition criticality and reaction severity may use the term "severity" to represent both. Criticality is the worst it could be in the future (i.e. situation-agnostic) whereas severity is situation-dependent. Estimate of the potential clinical harm, or seriousness, of a reaction to an identified substance. AllergyIntoleranceCriticality (required) Constraints
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| code | Σ | 1..1 | CodeableConceptBinding | Element idAllergyIntolerance.codeShort description Code that identifies the allergy or intolerance Alternate namesCode DefinitionCode for an allergy or intolerance statement (either a positive or a negated/excluded statement). This may be a code for a substance or pharmaceutical product that is considered to be responsible for the adverse reaction risk (e.g., "Latex"), an allergy or intolerance condition (e.g., "Latex allergy"), or a negated/excluded code for a specific substance or class (e.g., "No latex allergy") or a general or categorical negated statement (e.g., "No known allergy", "No known drug allergies"). Note: the substance for a specific reaction may be different from the substance identified as the cause of the risk, but it must be consistent with it. For instance, it may be a more specific substance (e.g. a brand medication) or a composite product that includes the identified substance. It must be clinically safe to only process the 'code' and ignore the 'reaction.substance'. If a receiving system is unable to confirm that AllergyIntolerance.reaction.substance falls within the semantic scope of AllergyIntolerance.code, then the receiving system should ignore AllergyIntolerance.reaction.substance. It is strongly recommended that this element be populated using a terminology, where possible. For example, some terminologies used include RxNorm, SNOMED CT, DM+D, NDFRT, ICD-9, IDC-10, UNII, and ATC. Plain text should only be used if there is no appropriate terminology available. Additional details can be specified in the text. When a substance or product code is specified for the 'code' element, the "default" semantic context is that this is a positive statement of an allergy or intolerance (depending on the value of the 'type' element, if present) condition to the specified substance/product. In the corresponding SNOMED CT allergy model, the specified substance/product is the target (destination) of the "Causative agent" relationship. The 'substanceExposureRisk' extension is available as a structured and more flexible alternative to the 'code' element for making positive or negative allergy or intolerance statements. This extension provides the capability to make "no known allergy" (or "no risk of adverse reaction") statements regarding any coded substance/product (including cases when a pre-coordinated "no allergy to x" concept for that substance/product does not exist). If the 'substanceExposureRisk' extension is present, the AllergyIntolerance.code element SHALL be omitted. Type of the substance/product, allergy or intolerance condition, or negation/exclusion codes for reporting no known allergies.
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| patient | Σ | 1..1 | Reference() | Element idAllergyIntolerance.patientShort description Who the sensitivity is for Alternate namesPatient DefinitionThe patient who has the allergy or intolerance.
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| id | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.patient.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.patient.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
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| reference | Σ C | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.patient.referenceShort description Literal reference, Relative, internal or absolute URL DefinitionA 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-1 Constraints
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this element Element idAllergyIntolerance.patient.typeShort description Type the reference refers to (e.g. "Patient") DefinitionThe 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 element Element idAllergyIntolerance.patient.identifierShort description Logical reference, when literal reference is not known DefinitionAn 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 element Element idAllergyIntolerance.patient.identifier.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.patient.identifier.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this element Element idAllergyIntolerance.patient.identifier.useShort description usual | official | temp | secondary | old (If known) DefinitionThe 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 element Element idAllergyIntolerance.patient.identifier.typeShort description Description of identifier DefinitionA 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 element Element idAllergyIntolerance.patient.identifier.systemShort description The namespace for the identifier value DefinitionEstablishes 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 element Element idAllergyIntolerance.patient.identifier.valueShort description The value that is unique DefinitionThe 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 element Element idAllergyIntolerance.patient.identifier.periodShort description Time period when id is/was valid for use DefinitionTime period during which identifier is/was valid for use.
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| assigner | Σ | 0..1 | Reference() | Element idAllergyIntolerance.patient.identifier.assignerShort description Organization that issued id (may be just text) DefinitionOrganization 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 element Element idAllergyIntolerance.patient.displayShort description Text alternative for the resource DefinitionPlain 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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| encounter | 0..1 | Reference(Encounter) | There are no (further) constraints on this element Element idAllergyIntolerance.encounterShort description Encounter when the allergy or intolerance was asserted DefinitionThe encounter when the allergy or intolerance was asserted.
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| id | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.encounter.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.encounter.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
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| reference | Σ C | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.encounter.referenceShort description Literal reference, Relative, internal or absolute URL DefinitionA 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-1 Constraints
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this element Element idAllergyIntolerance.encounter.typeShort description Type the reference refers to (e.g. "Patient") DefinitionThe 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 element Element idAllergyIntolerance.encounter.identifierShort description Logical reference, when literal reference is not known DefinitionAn 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 element Element idAllergyIntolerance.encounter.identifier.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.encounter.identifier.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
| ||
| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this element Element idAllergyIntolerance.encounter.identifier.useShort description usual | official | temp | secondary | old (If known) DefinitionThe 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 element Element idAllergyIntolerance.encounter.identifier.typeShort description Description of identifier DefinitionA 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 element Element idAllergyIntolerance.encounter.identifier.systemShort description The namespace for the identifier value DefinitionEstablishes 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 element Element idAllergyIntolerance.encounter.identifier.valueShort description The value that is unique DefinitionThe 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 element Element idAllergyIntolerance.encounter.identifier.periodShort description Time period when id is/was valid for use DefinitionTime period during which identifier is/was valid for use.
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| assigner | Σ | 0..1 | Reference() | Element idAllergyIntolerance.encounter.identifier.assignerShort description Organization that issued id (may be just text) DefinitionOrganization 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 element Element idAllergyIntolerance.encounter.displayShort description Text alternative for the resource DefinitionPlain 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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| onset[x] | 0..1 | There are no (further) constraints on this element Element idAllergyIntolerance.onset[x]Short description When allergy or intolerance was identified DefinitionEstimated or actual date, date-time, or age when allergy or intolerance was identified.
| ||||
| onsetDateTime | dateTime | There are no (further) constraints on this element Data type | ||||
| onsetAge | Age | There are no (further) constraints on this element Data type | ||||
| onsetPeriod | Period | There are no (further) constraints on this element Data type | ||||
| onsetRange | Range | There are no (further) constraints on this element Data type | ||||
| onsetString | string | There are no (further) constraints on this element Data type | ||||
| recordedDate | 0..1 | dateTime | There are no (further) constraints on this element Element idAllergyIntolerance.recordedDateShort description Date first version of the resource instance was recorded DefinitionThe recordedDate represents when this particular AllergyIntolerance record was created in the system, which is often a system-generated date.
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| recorder | 0..1 | Reference( | | | RelatedPerson) | Element idAllergyIntolerance.recorderShort description Who recorded the sensitivity Alternate namesAuthor DefinitionIndividual who recorded the record and takes responsibility for its content. Reference( | | | RelatedPerson) Constraints
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| id | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.recorder.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.recorder.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
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| reference | Σ C | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.recorder.referenceShort description Literal reference, Relative, internal or absolute URL DefinitionA 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-1 Constraints
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this element Element idAllergyIntolerance.recorder.typeShort description Type the reference refers to (e.g. "Patient") DefinitionThe 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 element Element idAllergyIntolerance.recorder.identifierShort description Logical reference, when literal reference is not known DefinitionAn 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 element Element idAllergyIntolerance.recorder.identifier.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.recorder.identifier.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
| ||
| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this element Element idAllergyIntolerance.recorder.identifier.useShort description usual | official | temp | secondary | old (If known) DefinitionThe 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 element Element idAllergyIntolerance.recorder.identifier.typeShort description Description of identifier DefinitionA 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 element Element idAllergyIntolerance.recorder.identifier.systemShort description The namespace for the identifier value DefinitionEstablishes 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 element Element idAllergyIntolerance.recorder.identifier.valueShort description The value that is unique DefinitionThe 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 element Element idAllergyIntolerance.recorder.identifier.periodShort description Time period when id is/was valid for use DefinitionTime period during which identifier is/was valid for use.
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| assigner | Σ | 0..1 | Reference() | Element idAllergyIntolerance.recorder.identifier.assignerShort description Organization that issued id (may be just text) DefinitionOrganization 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 element Element idAllergyIntolerance.recorder.displayShort description Text alternative for the resource DefinitionPlain 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.
| ||
| asserter | Σ | 0..1 | Reference( | RelatedPerson | | ) | Element idAllergyIntolerance.asserterShort description Source of the information about the allergy Alternate namesSource, Informant DefinitionThe source of the information about the allergy that is recorded. The recorder takes responsibility for the content, but can reference the source from where they got it. Reference( | RelatedPerson | | ) Constraints
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| id | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.asserter.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.asserter.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
| ||
| reference | Σ C | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.asserter.referenceShort description Literal reference, Relative, internal or absolute URL DefinitionA 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-1 Constraints
| ||
| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this element Element idAllergyIntolerance.asserter.typeShort description Type the reference refers to (e.g. "Patient") DefinitionThe 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 element Element idAllergyIntolerance.asserter.identifierShort description Logical reference, when literal reference is not known DefinitionAn 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 element Element idAllergyIntolerance.asserter.identifier.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.asserter.identifier.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
| ||
| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this element Element idAllergyIntolerance.asserter.identifier.useShort description usual | official | temp | secondary | old (If known) DefinitionThe 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 element Element idAllergyIntolerance.asserter.identifier.typeShort description Description of identifier DefinitionA 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 element Element idAllergyIntolerance.asserter.identifier.systemShort description The namespace for the identifier value DefinitionEstablishes 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 element Element idAllergyIntolerance.asserter.identifier.valueShort description The value that is unique DefinitionThe 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 element Element idAllergyIntolerance.asserter.identifier.periodShort description Time period when id is/was valid for use DefinitionTime period during which identifier is/was valid for use.
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| assigner | Σ | 0..1 | Reference() | Element idAllergyIntolerance.asserter.identifier.assignerShort description Organization that issued id (may be just text) DefinitionOrganization 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 element Element idAllergyIntolerance.asserter.displayShort description Text alternative for the resource DefinitionPlain 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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| lastOccurrence | 0..1 | dateTime | There are no (further) constraints on this element Element idAllergyIntolerance.lastOccurrenceShort description Date(/time) of last known occurrence of a reaction DefinitionRepresents the date and/or time of the last known occurrence of a reaction event. This date may be replicated by one of the Onset of Reaction dates. Where a textual representation of the date of last occurrence is required e.g. 'In Childhood, '10 years ago' the Comment element should be used.
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| note | 0..* | Annotation | There are no (further) constraints on this element Element idAllergyIntolerance.noteShort description Additional text not captured in other fields DefinitionAdditional narrative about the propensity for the Adverse Reaction, not captured in other fields. For example: including reason for flagging a seriousness of 'High Risk'; and instructions related to future exposure or administration of the substance, such as administration within an Intensive Care Unit or under corticosteroid cover. The notes should be related to an allergy or intolerance as a condition in general and not related to any particular episode of it. For episode notes and descriptions, use AllergyIntolerance.event.description and AllergyIntolerance.event.notes.
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| id | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.note.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.note.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
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| author[x] | Σ | 0..1 | There are no (further) constraints on this element Element idAllergyIntolerance.note.author[x]Short description Individual responsible for the annotation DefinitionThe individual responsible for making the annotation. Organization is used when there's no need for specific attribution as to who made the comment.
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| authorString | string | Data type | ||||
| authorReference | Reference( | | RelatedPerson | ) | Data type Reference( | | RelatedPerson | ) | ||||
| time | Σ | 0..1 | dateTime | There are no (further) constraints on this element Element idAllergyIntolerance.note.timeShort description When the annotation was made DefinitionIndicates when this particular annotation was made.
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| text | Σ | 1..1 | markdown | There are no (further) constraints on this element Element idAllergyIntolerance.note.textShort description The annotation - text content (as markdown) DefinitionThe text of the annotation in markdown format.
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| reaction | 0..* | BackboneElement | There are no (further) constraints on this element Element idAllergyIntolerance.reactionShort description Adverse Reaction Events linked to exposure to substance DefinitionDetails about each adverse reaction event linked to exposure to the identified substance.
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| id | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.reaction.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.reaction.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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 element Element idAllergyIntolerance.reaction.modifierExtensionShort description Extensions that cannot be ignored even if unrecognized Alternate namesextensions, user content, modifiers DefinitionMay 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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| substance | 0..1 | CodeableConceptBinding | Element idAllergyIntolerance.reaction.substanceShort description Specific substance or pharmaceutical product considered to be responsible for event DefinitionIdentification of the specific substance (or pharmaceutical product) considered to be responsible for the Adverse Reaction event. Note: the substance for a specific reaction may be different from the substance identified as the cause of the risk, but it must be consistent with it. For instance, it may be a more specific substance (e.g. a brand medication) or a composite product that includes the identified substance. It must be clinically safe to only process the 'code' and ignore the 'reaction.substance'. If a receiving system is unable to confirm that AllergyIntolerance.reaction.substance falls within the semantic scope of AllergyIntolerance.code, then the receiving system should ignore AllergyIntolerance.reaction.substance. Coding of the specific substance (or pharmaceutical product) with a terminology capable of triggering decision support should be used wherever possible. The 'code' element allows for the use of a specific substance or pharmaceutical product, or a group or class of substances. In the case of an allergy or intolerance to a class of substances, (for example, "penicillins"), the 'reaction.substance' element could be used to code the specific substance that was identified as having caused the reaction (for example, "amoxycillin"). Duplication of the value in the 'code' and 'reaction.substance' elements is acceptable when a specific substance has been recorded in 'code'. Codes defining the type of the substance (including pharmaceutical products).
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| manifestation | 1..* | CodeableConceptBinding | Element idAllergyIntolerance.reaction.manifestationShort description Clinical symptoms/signs associated with the Event Alternate namesSymptoms, Signs DefinitionClinical symptoms and/or signs that are observed or associated with the adverse reaction event. Manifestation can be expressed as a single word, phrase or brief description. For example: nausea, rash or no reaction. It is preferable that manifestation should be coded with a terminology, where possible. The values entered here may be used to display on an application screen as part of a list of adverse reactions, as recommended in the UK NHS CUI guidelines. Terminologies commonly used include, but are not limited to, SNOMED CT or ICD10. Clinical symptoms and/or signs that are observed or associated with an Adverse Reaction Event.
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| description | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.reaction.descriptionShort description Description of the event as a whole Alternate namesNarrative, Text DefinitionText description about the reaction as a whole, including details of the manifestation if required. Use the description to provide any details of a particular event of the occurred reaction such as circumstances, reaction specifics, what happened before/after. Information, related to the event, but not describing a particular care should be captured in the comment field. For example: at the age of four, the patient was given penicillin for strep throat and subsequently developed severe hives.
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| onset | 0..1 | dateTime | There are no (further) constraints on this element Element idAllergyIntolerance.reaction.onsetShort description Date(/time) when manifestations showed DefinitionRecord of the date and/or time of the onset of the Reaction.
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| severity | 0..1 | codeBinding | There are no (further) constraints on this element Element idAllergyIntolerance.reaction.severityShort description mild | moderate | severe (of event as a whole) DefinitionClinical assessment of the severity of the reaction event as a whole, potentially considering multiple different manifestations. It is acknowledged that this assessment is very subjective. There may be some specific practice domains where objective scales have been applied. Objective scales can be included in this model as extensions. Clinical assessment of the severity of a reaction event as a whole, potentially considering multiple different manifestations. AllergyIntoleranceSeverity (required) Constraints
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| exposureRoute | 0..1 | CodeableConceptBinding | Element idAllergyIntolerance.reaction.exposureRouteShort description How the subject was exposed to the substance DefinitionIdentification of the route by which the subject was exposed to the substance. Coding of the route of exposure with a terminology should be used wherever possible. A coded concept describing the route or physiological path of administration of a therapeutic agent into or onto the body of a subject.
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| note | 0..* | Annotation | There are no (further) constraints on this element Element idAllergyIntolerance.reaction.noteShort description Text about event not captured in other fields DefinitionAdditional text about the adverse reaction event not captured in other fields. Use this field to record information indirectly related to a particular event and not captured in the description. For example: Clinical records are no longer available, recorded based on information provided to the patient by her mother and her mother is deceased.
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| id | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.reaction.note.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.reaction.note.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
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| author[x] | Σ | 0..1 | There are no (further) constraints on this element Element idAllergyIntolerance.reaction.note.author[x]Short description Individual responsible for the annotation DefinitionThe individual responsible for making the annotation. Organization is used when there's no need for specific attribution as to who made the comment.
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| authorString | string | Data type | ||||
| authorReference | Reference( | | RelatedPerson | ) | Data type Reference( | | RelatedPerson | ) | ||||
| time | Σ | 0..1 | dateTime | There are no (further) constraints on this element Element idAllergyIntolerance.reaction.note.timeShort description When the annotation was made DefinitionIndicates when this particular annotation was made.
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| text | Σ | 1..1 | markdown | There are no (further) constraints on this element Element idAllergyIntolerance.reaction.note.textShort description The annotation - text content (as markdown) DefinitionThe text of the annotation in markdown format.
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| UKCoreAllergyIntolerance (AllergyIntolerance) | C | AllergyIntolerance | There are no (further) constraints on this element Element idAllergyIntoleranceShort description Allergy or Intolerance (generally: Risk of adverse reaction to a substance) Alternate namesAllergy, Intolerance, Adverse Reaction DefinitionRisk of harmful or undesirable, physiological response which is unique to an individual and associated with exposure to a substance. Substances include, but are not limited to: a therapeutic substance administered correctly at an appropriate dosage for the individual; food; material derived from plants or animals; or venom from insect stings.
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| id | Σ | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.idShort description Logical id of this artifact DefinitionThe 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 element Element idAllergyIntolerance.metaShort description Metadata about the resource DefinitionThe 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 element Element idAllergyIntolerance.implicitRulesShort description A set of rules under which this content was created DefinitionA 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 element Element idAllergyIntolerance.languageShort description Language of the resource content DefinitionThe 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 element Element idAllergyIntolerance.textShort description Text summary of the resource, for human interpretation Alternate namesnarrative, html, xhtml, display DefinitionA 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 element Element idAllergyIntolerance.containedShort description Contained, inline Resources Alternate namesinline resources, anonymous resources, contained resources DefinitionThese 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 | Element idAllergyIntolerance.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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. Unordered, Open, by url(Value) Constraints
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| evidence | C | 0..* | Extension(Reference(DiagnosticReport)) | Element idAllergyIntolerance.extension:evidenceShort description A reference to results of investigations that confirmed the certainty of the diagnosis. Alternate namesextensions, user content DefinitionA reference to results of investigations that confirmed the certainty of the diagnosis. 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. Extension(Reference(DiagnosticReport)) Extension URLhttps://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-Evidence ConditionsThe cardinality or value of this element may be affected by these constraints: ele-1 Constraints
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| modifierExtension | ?! C | 0..* | Extension | There are no (further) constraints on this element Element idAllergyIntolerance.modifierExtensionShort description Extensions that cannot be ignored Alternate namesextensions, user content DefinitionMay 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 element Element idAllergyIntolerance.identifierShort description External ids for this item DefinitionBusiness identifiers assigned to this AllergyIntolerance by the performer or other systems which remain constant as the resource is updated and propagates from server to server. Allows identification of the AllergyIntolerance as it is known by various participating systems and in a way that remains consistent across servers. This is a business identifier, not a resource identifier (see discussion). It is best practice for the identifier to only appear on a single resource instance, however business practices may occasionally dictate that multiple resource instances with the same identifier can exist - possibly even with different resource types. For example, multiple Patient and a Person resource instance might share the same social insurance number.
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| id | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.identifier.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.identifier.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this element Element idAllergyIntolerance.identifier.useShort description usual | official | temp | secondary | old (If known) DefinitionThe 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 element Element idAllergyIntolerance.identifier.typeShort description Description of identifier DefinitionA 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 element Element idAllergyIntolerance.identifier.systemShort description The namespace for the identifier value DefinitionEstablishes 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 element Element idAllergyIntolerance.identifier.valueShort description The value that is unique DefinitionThe 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 element Element idAllergyIntolerance.identifier.periodShort description Time period when id is/was valid for use DefinitionTime period during which identifier is/was valid for use.
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| assigner | Σ | 0..1 | Reference() | Element idAllergyIntolerance.identifier.assignerShort description Organization that issued id (may be just text) DefinitionOrganization 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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| clinicalStatus | Σ ?! C | 0..1 | CodeableConceptBinding | There are no (further) constraints on this element Element idAllergyIntolerance.clinicalStatusShort description active | inactive | resolved DefinitionThe clinical status of the allergy or intolerance. Refer to discussion if clincalStatus is missing data. The data type is CodeableConcept because clinicalStatus has some clinical judgment involved, such that there might need to be more specificity than the required FHIR value set allows. For example, a SNOMED coding might allow for additional specificity. The clinical status of the allergy or intolerance. AllergyIntoleranceClinicalStatusCodes (required) ConditionsThe cardinality or value of this element may be affected by these constraints: ait-1, ait-2 Constraints
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| id | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.clinicalStatus.idShort description Unique id for inter-element referencing DefinitionUnique 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 | Element idAllergyIntolerance.clinicalStatus.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
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| allergyIntoleranceEnd | C | 0..1 | Extension(Complex) | Element idAllergyIntolerance.clinicalStatus.extension:allergyIntoleranceEndShort description Supports the date when the allergy or intolerance was no longer valid, and/or, the reason why the allergy or intolerance is no longer valid. Alternate namesextensions, user content DefinitionSupports the date when the allergy or intolerance was no longer valid, and/or, the reason why the allergy or intolerance is no longer valid. 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. Extension(Complex) Extension URLhttps://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-AllergyIntoleranceEnd ConditionsThe cardinality or value of this element may be affected by these constraints: ele-1 Constraints
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| coding | Σ | 0..* | Coding | There are no (further) constraints on this element Element idAllergyIntolerance.clinicalStatus.codingShort description Code defined by a terminology system DefinitionA 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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| text | Σ | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.clinicalStatus.textShort description Plain text representation of the concept DefinitionA 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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| verificationStatus | Σ ?! C | 0..1 | CodeableConceptBinding | There are no (further) constraints on this element Element idAllergyIntolerance.verificationStatusShort description unconfirmed | confirmed | refuted | entered-in-error DefinitionAssertion about certainty associated with the propensity, or potential risk, of a reaction to the identified substance (including pharmaceutical product). The data type is CodeableConcept because verificationStatus has some clinical judgment involved, such that there might need to be more specificity than the required FHIR value set allows. For example, a SNOMED coding might allow for additional specificity. Assertion about certainty associated with a propensity, or potential risk, of a reaction to the identified substance. AllergyIntoleranceVerificationStatusCodes (required) ConditionsThe cardinality or value of this element may be affected by these constraints: ait-1, ait-2 Constraints
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| type | Σ | 0..1 | codeBinding | There are no (further) constraints on this element Element idAllergyIntolerance.typeShort description allergy | intolerance - Underlying mechanism (if known) Alternate namesCategory, Class DefinitionIdentification of the underlying physiological mechanism for the reaction risk. Allergic (typically immune-mediated) reactions have been traditionally regarded as an indicator for potential escalation to significant future risk. Contemporary knowledge suggests that some reactions previously thought to be immune-mediated are, in fact, non-immune, but in some cases can still pose a life threatening risk. It is acknowledged that many clinicians might not be in a position to distinguish the mechanism of a particular reaction. Often the term "allergy" is used rather generically and may overlap with the use of "intolerance" - in practice the boundaries between these two concepts might not be well-defined or understood. This data element is included nevertheless, because many legacy systems have captured this attribute. Immunologic testing may provide supporting evidence for the basis of the reaction and the causative substance, but no tests are 100% sensitive or specific for sensitivity to a particular substance. If, as is commonly the case, it is unclear whether the reaction is due to an allergy or an intolerance, then the type element should be omitted from the resource. Identification of the underlying physiological mechanism for a Reaction Risk. AllergyIntoleranceType (required) Constraints
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| category | Σ | 0..* | codeBinding | There are no (further) constraints on this element Element idAllergyIntolerance.categoryShort description food | medication | environment | biologic Alternate namesCategory, Type, Reaction Type, Class DefinitionCategory of the identified substance. This data element has been included because it is currently being captured in some clinical systems. This data can be derived from the substance where coding systems are used, and is effectively redundant in that situation. When searching on category, consider the implications of AllergyIntolerance resources without a category. For example, when searching on category = medication, medication allergies that don't have a category valued will not be returned. Refer to search for more information on how to search category with a :missing modifier to get allergies that don't have a category. Additionally, category should be used with caution because category can be subjective based on the sender. Category of an identified substance associated with allergies or intolerances. AllergyIntoleranceCategory (required) Constraints
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| criticality | Σ | 0..1 | codeBinding | There are no (further) constraints on this element Element idAllergyIntolerance.criticalityShort description low | high | unable-to-assess Alternate namesSeverity, Seriousness, Contra-indication, Risk DefinitionEstimate of the potential clinical harm, or seriousness, of the reaction to the identified substance. The default criticality value for any propensity to an adverse reaction should be 'Low Risk', indicating at the very least a relative contraindication to deliberate or voluntary exposure to the substance. 'High Risk' is flagged if the clinician has identified a propensity for a more serious or potentially life-threatening reaction, such as anaphylaxis, and implies an absolute contraindication to deliberate or voluntary exposure to the substance. If this element is missing, the criticality is unknown (though it may be known elsewhere). Systems that capture a severity at the condition level are actually representing the concept of criticality whereas the severity documented at the reaction level is representing the true reaction severity. Existing systems that are capturing both condition criticality and reaction severity may use the term "severity" to represent both. Criticality is the worst it could be in the future (i.e. situation-agnostic) whereas severity is situation-dependent. Estimate of the potential clinical harm, or seriousness, of a reaction to an identified substance. AllergyIntoleranceCriticality (required) Constraints
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| code | Σ | 1..1 | CodeableConceptBinding | Element idAllergyIntolerance.codeShort description Code that identifies the allergy or intolerance Alternate namesCode DefinitionCode for an allergy or intolerance statement (either a positive or a negated/excluded statement). This may be a code for a substance or pharmaceutical product that is considered to be responsible for the adverse reaction risk (e.g., "Latex"), an allergy or intolerance condition (e.g., "Latex allergy"), or a negated/excluded code for a specific substance or class (e.g., "No latex allergy") or a general or categorical negated statement (e.g., "No known allergy", "No known drug allergies"). Note: the substance for a specific reaction may be different from the substance identified as the cause of the risk, but it must be consistent with it. For instance, it may be a more specific substance (e.g. a brand medication) or a composite product that includes the identified substance. It must be clinically safe to only process the 'code' and ignore the 'reaction.substance'. If a receiving system is unable to confirm that AllergyIntolerance.reaction.substance falls within the semantic scope of AllergyIntolerance.code, then the receiving system should ignore AllergyIntolerance.reaction.substance. It is strongly recommended that this element be populated using a terminology, where possible. For example, some terminologies used include RxNorm, SNOMED CT, DM+D, NDFRT, ICD-9, IDC-10, UNII, and ATC. Plain text should only be used if there is no appropriate terminology available. Additional details can be specified in the text. When a substance or product code is specified for the 'code' element, the "default" semantic context is that this is a positive statement of an allergy or intolerance (depending on the value of the 'type' element, if present) condition to the specified substance/product. In the corresponding SNOMED CT allergy model, the specified substance/product is the target (destination) of the "Causative agent" relationship. The 'substanceExposureRisk' extension is available as a structured and more flexible alternative to the 'code' element for making positive or negative allergy or intolerance statements. This extension provides the capability to make "no known allergy" (or "no risk of adverse reaction") statements regarding any coded substance/product (including cases when a pre-coordinated "no allergy to x" concept for that substance/product does not exist). If the 'substanceExposureRisk' extension is present, the AllergyIntolerance.code element SHALL be omitted. Type of the substance/product, allergy or intolerance condition, or negation/exclusion codes for reporting no known allergies.
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| patient | Σ | 1..1 | Reference() | Element idAllergyIntolerance.patientShort description Who the sensitivity is for Alternate namesPatient DefinitionThe patient who has the allergy or intolerance.
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| id | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.patient.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.patient.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
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| reference | Σ C | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.patient.referenceShort description Literal reference, Relative, internal or absolute URL DefinitionA 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-1 Constraints
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this element Element idAllergyIntolerance.patient.typeShort description Type the reference refers to (e.g. "Patient") DefinitionThe 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 element Element idAllergyIntolerance.patient.identifierShort description Logical reference, when literal reference is not known DefinitionAn 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 element Element idAllergyIntolerance.patient.identifier.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.patient.identifier.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this element Element idAllergyIntolerance.patient.identifier.useShort description usual | official | temp | secondary | old (If known) DefinitionThe 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 element Element idAllergyIntolerance.patient.identifier.typeShort description Description of identifier DefinitionA 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 element Element idAllergyIntolerance.patient.identifier.systemShort description The namespace for the identifier value DefinitionEstablishes 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 element Element idAllergyIntolerance.patient.identifier.valueShort description The value that is unique DefinitionThe 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 element Element idAllergyIntolerance.patient.identifier.periodShort description Time period when id is/was valid for use DefinitionTime period during which identifier is/was valid for use.
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| assigner | Σ | 0..1 | Reference() | Element idAllergyIntolerance.patient.identifier.assignerShort description Organization that issued id (may be just text) DefinitionOrganization 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 element Element idAllergyIntolerance.patient.displayShort description Text alternative for the resource DefinitionPlain 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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| encounter | 0..1 | Reference(Encounter) | There are no (further) constraints on this element Element idAllergyIntolerance.encounterShort description Encounter when the allergy or intolerance was asserted DefinitionThe encounter when the allergy or intolerance was asserted.
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| id | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.encounter.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.encounter.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
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| reference | Σ C | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.encounter.referenceShort description Literal reference, Relative, internal or absolute URL DefinitionA 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-1 Constraints
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this element Element idAllergyIntolerance.encounter.typeShort description Type the reference refers to (e.g. "Patient") DefinitionThe 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 element Element idAllergyIntolerance.encounter.identifierShort description Logical reference, when literal reference is not known DefinitionAn 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 element Element idAllergyIntolerance.encounter.identifier.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.encounter.identifier.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this element Element idAllergyIntolerance.encounter.identifier.useShort description usual | official | temp | secondary | old (If known) DefinitionThe 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 element Element idAllergyIntolerance.encounter.identifier.typeShort description Description of identifier DefinitionA 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 element Element idAllergyIntolerance.encounter.identifier.systemShort description The namespace for the identifier value DefinitionEstablishes 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 element Element idAllergyIntolerance.encounter.identifier.valueShort description The value that is unique DefinitionThe 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 element Element idAllergyIntolerance.encounter.identifier.periodShort description Time period when id is/was valid for use DefinitionTime period during which identifier is/was valid for use.
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| assigner | Σ | 0..1 | Reference() | Element idAllergyIntolerance.encounter.identifier.assignerShort description Organization that issued id (may be just text) DefinitionOrganization 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 element Element idAllergyIntolerance.encounter.displayShort description Text alternative for the resource DefinitionPlain 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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| onset[x] | 0..1 | There are no (further) constraints on this element Element idAllergyIntolerance.onset[x]Short description When allergy or intolerance was identified DefinitionEstimated or actual date, date-time, or age when allergy or intolerance was identified.
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| onsetDateTime | dateTime | There are no (further) constraints on this element Data type | ||||
| onsetAge | Age | There are no (further) constraints on this element Data type | ||||
| onsetPeriod | Period | There are no (further) constraints on this element Data type | ||||
| onsetRange | Range | There are no (further) constraints on this element Data type | ||||
| onsetString | string | There are no (further) constraints on this element Data type | ||||
| recordedDate | 0..1 | dateTime | There are no (further) constraints on this element Element idAllergyIntolerance.recordedDateShort description Date first version of the resource instance was recorded DefinitionThe recordedDate represents when this particular AllergyIntolerance record was created in the system, which is often a system-generated date.
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| recorder | 0..1 | Reference( | | | RelatedPerson) | Element idAllergyIntolerance.recorderShort description Who recorded the sensitivity Alternate namesAuthor DefinitionIndividual who recorded the record and takes responsibility for its content. Reference( | | | RelatedPerson) Constraints
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| id | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.recorder.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.recorder.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
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| reference | Σ C | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.recorder.referenceShort description Literal reference, Relative, internal or absolute URL DefinitionA 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-1 Constraints
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this element Element idAllergyIntolerance.recorder.typeShort description Type the reference refers to (e.g. "Patient") DefinitionThe 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 element Element idAllergyIntolerance.recorder.identifierShort description Logical reference, when literal reference is not known DefinitionAn 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 element Element idAllergyIntolerance.recorder.identifier.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.recorder.identifier.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
| ||
| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this element Element idAllergyIntolerance.recorder.identifier.useShort description usual | official | temp | secondary | old (If known) DefinitionThe 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 element Element idAllergyIntolerance.recorder.identifier.typeShort description Description of identifier DefinitionA 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 element Element idAllergyIntolerance.recorder.identifier.systemShort description The namespace for the identifier value DefinitionEstablishes 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 element Element idAllergyIntolerance.recorder.identifier.valueShort description The value that is unique DefinitionThe 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 element Element idAllergyIntolerance.recorder.identifier.periodShort description Time period when id is/was valid for use DefinitionTime period during which identifier is/was valid for use.
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| assigner | Σ | 0..1 | Reference() | Element idAllergyIntolerance.recorder.identifier.assignerShort description Organization that issued id (may be just text) DefinitionOrganization 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 element Element idAllergyIntolerance.recorder.displayShort description Text alternative for the resource DefinitionPlain 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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| asserter | Σ | 0..1 | Reference( | RelatedPerson | | ) | Element idAllergyIntolerance.asserterShort description Source of the information about the allergy Alternate namesSource, Informant DefinitionThe source of the information about the allergy that is recorded. The recorder takes responsibility for the content, but can reference the source from where they got it. Reference( | RelatedPerson | | ) Constraints
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| id | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.asserter.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.asserter.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
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| reference | Σ C | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.asserter.referenceShort description Literal reference, Relative, internal or absolute URL DefinitionA 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-1 Constraints
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this element Element idAllergyIntolerance.asserter.typeShort description Type the reference refers to (e.g. "Patient") DefinitionThe 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 element Element idAllergyIntolerance.asserter.identifierShort description Logical reference, when literal reference is not known DefinitionAn 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 element Element idAllergyIntolerance.asserter.identifier.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.asserter.identifier.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this element Element idAllergyIntolerance.asserter.identifier.useShort description usual | official | temp | secondary | old (If known) DefinitionThe 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 element Element idAllergyIntolerance.asserter.identifier.typeShort description Description of identifier DefinitionA 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 element Element idAllergyIntolerance.asserter.identifier.systemShort description The namespace for the identifier value DefinitionEstablishes 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 element Element idAllergyIntolerance.asserter.identifier.valueShort description The value that is unique DefinitionThe 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 element Element idAllergyIntolerance.asserter.identifier.periodShort description Time period when id is/was valid for use DefinitionTime period during which identifier is/was valid for use.
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| assigner | Σ | 0..1 | Reference() | Element idAllergyIntolerance.asserter.identifier.assignerShort description Organization that issued id (may be just text) DefinitionOrganization 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 element Element idAllergyIntolerance.asserter.displayShort description Text alternative for the resource DefinitionPlain 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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| lastOccurrence | 0..1 | dateTime | There are no (further) constraints on this element Element idAllergyIntolerance.lastOccurrenceShort description Date(/time) of last known occurrence of a reaction DefinitionRepresents the date and/or time of the last known occurrence of a reaction event. This date may be replicated by one of the Onset of Reaction dates. Where a textual representation of the date of last occurrence is required e.g. 'In Childhood, '10 years ago' the Comment element should be used.
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| note | 0..* | Annotation | There are no (further) constraints on this element Element idAllergyIntolerance.noteShort description Additional text not captured in other fields DefinitionAdditional narrative about the propensity for the Adverse Reaction, not captured in other fields. For example: including reason for flagging a seriousness of 'High Risk'; and instructions related to future exposure or administration of the substance, such as administration within an Intensive Care Unit or under corticosteroid cover. The notes should be related to an allergy or intolerance as a condition in general and not related to any particular episode of it. For episode notes and descriptions, use AllergyIntolerance.event.description and AllergyIntolerance.event.notes.
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| id | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.note.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.note.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
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| author[x] | Σ | 0..1 | There are no (further) constraints on this element Element idAllergyIntolerance.note.author[x]Short description Individual responsible for the annotation DefinitionThe individual responsible for making the annotation. Organization is used when there's no need for specific attribution as to who made the comment.
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| authorString | string | Data type | ||||
| authorReference | Reference( | | RelatedPerson | ) | Data type Reference( | | RelatedPerson | ) | ||||
| time | Σ | 0..1 | dateTime | There are no (further) constraints on this element Element idAllergyIntolerance.note.timeShort description When the annotation was made DefinitionIndicates when this particular annotation was made.
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| text | Σ | 1..1 | markdown | There are no (further) constraints on this element Element idAllergyIntolerance.note.textShort description The annotation - text content (as markdown) DefinitionThe text of the annotation in markdown format.
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| reaction | 0..* | BackboneElement | There are no (further) constraints on this element Element idAllergyIntolerance.reactionShort description Adverse Reaction Events linked to exposure to substance DefinitionDetails about each adverse reaction event linked to exposure to the identified substance.
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| id | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.reaction.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.reaction.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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 element Element idAllergyIntolerance.reaction.modifierExtensionShort description Extensions that cannot be ignored even if unrecognized Alternate namesextensions, user content, modifiers DefinitionMay 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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| substance | 0..1 | CodeableConceptBinding | Element idAllergyIntolerance.reaction.substanceShort description Specific substance or pharmaceutical product considered to be responsible for event DefinitionIdentification of the specific substance (or pharmaceutical product) considered to be responsible for the Adverse Reaction event. Note: the substance for a specific reaction may be different from the substance identified as the cause of the risk, but it must be consistent with it. For instance, it may be a more specific substance (e.g. a brand medication) or a composite product that includes the identified substance. It must be clinically safe to only process the 'code' and ignore the 'reaction.substance'. If a receiving system is unable to confirm that AllergyIntolerance.reaction.substance falls within the semantic scope of AllergyIntolerance.code, then the receiving system should ignore AllergyIntolerance.reaction.substance. Coding of the specific substance (or pharmaceutical product) with a terminology capable of triggering decision support should be used wherever possible. The 'code' element allows for the use of a specific substance or pharmaceutical product, or a group or class of substances. In the case of an allergy or intolerance to a class of substances, (for example, "penicillins"), the 'reaction.substance' element could be used to code the specific substance that was identified as having caused the reaction (for example, "amoxycillin"). Duplication of the value in the 'code' and 'reaction.substance' elements is acceptable when a specific substance has been recorded in 'code'. Codes defining the type of the substance (including pharmaceutical products).
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| manifestation | 1..* | CodeableConceptBinding | Element idAllergyIntolerance.reaction.manifestationShort description Clinical symptoms/signs associated with the Event Alternate namesSymptoms, Signs DefinitionClinical symptoms and/or signs that are observed or associated with the adverse reaction event. Manifestation can be expressed as a single word, phrase or brief description. For example: nausea, rash or no reaction. It is preferable that manifestation should be coded with a terminology, where possible. The values entered here may be used to display on an application screen as part of a list of adverse reactions, as recommended in the UK NHS CUI guidelines. Terminologies commonly used include, but are not limited to, SNOMED CT or ICD10. Clinical symptoms and/or signs that are observed or associated with an Adverse Reaction Event.
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| description | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.reaction.descriptionShort description Description of the event as a whole Alternate namesNarrative, Text DefinitionText description about the reaction as a whole, including details of the manifestation if required. Use the description to provide any details of a particular event of the occurred reaction such as circumstances, reaction specifics, what happened before/after. Information, related to the event, but not describing a particular care should be captured in the comment field. For example: at the age of four, the patient was given penicillin for strep throat and subsequently developed severe hives.
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| onset | 0..1 | dateTime | There are no (further) constraints on this element Element idAllergyIntolerance.reaction.onsetShort description Date(/time) when manifestations showed DefinitionRecord of the date and/or time of the onset of the Reaction.
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| severity | 0..1 | codeBinding | There are no (further) constraints on this element Element idAllergyIntolerance.reaction.severityShort description mild | moderate | severe (of event as a whole) DefinitionClinical assessment of the severity of the reaction event as a whole, potentially considering multiple different manifestations. It is acknowledged that this assessment is very subjective. There may be some specific practice domains where objective scales have been applied. Objective scales can be included in this model as extensions. Clinical assessment of the severity of a reaction event as a whole, potentially considering multiple different manifestations. AllergyIntoleranceSeverity (required) Constraints
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| exposureRoute | 0..1 | CodeableConceptBinding | Element idAllergyIntolerance.reaction.exposureRouteShort description How the subject was exposed to the substance DefinitionIdentification of the route by which the subject was exposed to the substance. Coding of the route of exposure with a terminology should be used wherever possible. A coded concept describing the route or physiological path of administration of a therapeutic agent into or onto the body of a subject.
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| note | 0..* | Annotation | There are no (further) constraints on this element Element idAllergyIntolerance.reaction.noteShort description Text about event not captured in other fields DefinitionAdditional text about the adverse reaction event not captured in other fields. Use this field to record information indirectly related to a particular event and not captured in the description. For example: Clinical records are no longer available, recorded based on information provided to the patient by her mother and her mother is deceased.
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| id | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.reaction.note.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.reaction.note.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
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| author[x] | Σ | 0..1 | There are no (further) constraints on this element Element idAllergyIntolerance.reaction.note.author[x]Short description Individual responsible for the annotation DefinitionThe individual responsible for making the annotation. Organization is used when there's no need for specific attribution as to who made the comment.
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| authorString | string | Data type | ||||
| authorReference | Reference( | | RelatedPerson | ) | Data type Reference( | | RelatedPerson | ) | ||||
| time | Σ | 0..1 | dateTime | There are no (further) constraints on this element Element idAllergyIntolerance.reaction.note.timeShort description When the annotation was made DefinitionIndicates when this particular annotation was made.
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| text | Σ | 1..1 | markdown | There are no (further) constraints on this element Element idAllergyIntolerance.reaction.note.textShort description The annotation - text content (as markdown) DefinitionThe text of the annotation in markdown format.
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| UKCoreAllergyIntolerance (AllergyIntolerance) | C | AllergyIntolerance | There are no (further) constraints on this element Element idAllergyIntoleranceShort description Allergy or Intolerance (generally: Risk of adverse reaction to a substance) Alternate namesAllergy, Intolerance, Adverse Reaction DefinitionRisk of harmful or undesirable, physiological response which is unique to an individual and associated with exposure to a substance. Substances include, but are not limited to: a therapeutic substance administered correctly at an appropriate dosage for the individual; food; material derived from plants or animals; or venom from insect stings.
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| id | Σ | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.idShort description Logical id of this artifact DefinitionThe 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 element Element idAllergyIntolerance.metaShort description Metadata about the resource DefinitionThe 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 element Element idAllergyIntolerance.implicitRulesShort description A set of rules under which this content was created DefinitionA 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 element Element idAllergyIntolerance.languageShort description Language of the resource content DefinitionThe 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 element Element idAllergyIntolerance.textShort description Text summary of the resource, for human interpretation Alternate namesnarrative, html, xhtml, display DefinitionA 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 element Element idAllergyIntolerance.containedShort description Contained, inline Resources Alternate namesinline resources, anonymous resources, contained resources DefinitionThese 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 | Element idAllergyIntolerance.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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. Unordered, Open, by url(Value) Constraints
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| evidence | C | 0..* | Extension(Reference(DiagnosticReport)) | Element idAllergyIntolerance.extension:evidenceShort description A reference to results of investigations that confirmed the certainty of the diagnosis. Alternate namesextensions, user content DefinitionA reference to results of investigations that confirmed the certainty of the diagnosis. 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. Extension(Reference(DiagnosticReport)) Extension URLhttps://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-Evidence ConditionsThe cardinality or value of this element may be affected by these constraints: ele-1 Constraints
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| modifierExtension | ?! C | 0..* | Extension | There are no (further) constraints on this element Element idAllergyIntolerance.modifierExtensionShort description Extensions that cannot be ignored Alternate namesextensions, user content DefinitionMay 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 element Element idAllergyIntolerance.identifierShort description External ids for this item DefinitionBusiness identifiers assigned to this AllergyIntolerance by the performer or other systems which remain constant as the resource is updated and propagates from server to server. Allows identification of the AllergyIntolerance as it is known by various participating systems and in a way that remains consistent across servers. This is a business identifier, not a resource identifier (see discussion). It is best practice for the identifier to only appear on a single resource instance, however business practices may occasionally dictate that multiple resource instances with the same identifier can exist - possibly even with different resource types. For example, multiple Patient and a Person resource instance might share the same social insurance number.
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| id | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.identifier.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.identifier.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this element Element idAllergyIntolerance.identifier.useShort description usual | official | temp | secondary | old (If known) DefinitionThe 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 element Element idAllergyIntolerance.identifier.typeShort description Description of identifier DefinitionA 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 element Element idAllergyIntolerance.identifier.systemShort description The namespace for the identifier value DefinitionEstablishes 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 element Element idAllergyIntolerance.identifier.valueShort description The value that is unique DefinitionThe 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 element Element idAllergyIntolerance.identifier.periodShort description Time period when id is/was valid for use DefinitionTime period during which identifier is/was valid for use.
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| assigner | Σ | 0..1 | Reference() | Element idAllergyIntolerance.identifier.assignerShort description Organization that issued id (may be just text) DefinitionOrganization 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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| clinicalStatus | Σ ?! C | 0..1 | CodeableConceptBinding | There are no (further) constraints on this element Element idAllergyIntolerance.clinicalStatusShort description active | inactive | resolved DefinitionThe clinical status of the allergy or intolerance. Refer to discussion if clincalStatus is missing data. The data type is CodeableConcept because clinicalStatus has some clinical judgment involved, such that there might need to be more specificity than the required FHIR value set allows. For example, a SNOMED coding might allow for additional specificity. The clinical status of the allergy or intolerance. AllergyIntoleranceClinicalStatusCodes (required) ConditionsThe cardinality or value of this element may be affected by these constraints: ait-1, ait-2 Constraints
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| id | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.clinicalStatus.idShort description Unique id for inter-element referencing DefinitionUnique 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 | Element idAllergyIntolerance.clinicalStatus.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
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| allergyIntoleranceEnd | C | 0..1 | Extension(Complex) | Element idAllergyIntolerance.clinicalStatus.extension:allergyIntoleranceEndShort description Supports the date when the allergy or intolerance was no longer valid, and/or, the reason why the allergy or intolerance is no longer valid. Alternate namesextensions, user content DefinitionSupports the date when the allergy or intolerance was no longer valid, and/or, the reason why the allergy or intolerance is no longer valid. 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. Extension(Complex) Extension URLhttps://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-AllergyIntoleranceEnd ConditionsThe cardinality or value of this element may be affected by these constraints: ele-1 Constraints
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| coding | Σ | 0..* | Coding | There are no (further) constraints on this element Element idAllergyIntolerance.clinicalStatus.codingShort description Code defined by a terminology system DefinitionA 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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| text | Σ | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.clinicalStatus.textShort description Plain text representation of the concept DefinitionA 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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| verificationStatus | Σ ?! C | 0..1 | CodeableConceptBinding | There are no (further) constraints on this element Element idAllergyIntolerance.verificationStatusShort description unconfirmed | confirmed | refuted | entered-in-error DefinitionAssertion about certainty associated with the propensity, or potential risk, of a reaction to the identified substance (including pharmaceutical product). The data type is CodeableConcept because verificationStatus has some clinical judgment involved, such that there might need to be more specificity than the required FHIR value set allows. For example, a SNOMED coding might allow for additional specificity. Assertion about certainty associated with a propensity, or potential risk, of a reaction to the identified substance. AllergyIntoleranceVerificationStatusCodes (required) ConditionsThe cardinality or value of this element may be affected by these constraints: ait-1, ait-2 Constraints
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| type | Σ | 0..1 | codeBinding | There are no (further) constraints on this element Element idAllergyIntolerance.typeShort description allergy | intolerance - Underlying mechanism (if known) Alternate namesCategory, Class DefinitionIdentification of the underlying physiological mechanism for the reaction risk. Allergic (typically immune-mediated) reactions have been traditionally regarded as an indicator for potential escalation to significant future risk. Contemporary knowledge suggests that some reactions previously thought to be immune-mediated are, in fact, non-immune, but in some cases can still pose a life threatening risk. It is acknowledged that many clinicians might not be in a position to distinguish the mechanism of a particular reaction. Often the term "allergy" is used rather generically and may overlap with the use of "intolerance" - in practice the boundaries between these two concepts might not be well-defined or understood. This data element is included nevertheless, because many legacy systems have captured this attribute. Immunologic testing may provide supporting evidence for the basis of the reaction and the causative substance, but no tests are 100% sensitive or specific for sensitivity to a particular substance. If, as is commonly the case, it is unclear whether the reaction is due to an allergy or an intolerance, then the type element should be omitted from the resource. Identification of the underlying physiological mechanism for a Reaction Risk. AllergyIntoleranceType (required) Constraints
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| category | Σ | 0..* | codeBinding | There are no (further) constraints on this element Element idAllergyIntolerance.categoryShort description food | medication | environment | biologic Alternate namesCategory, Type, Reaction Type, Class DefinitionCategory of the identified substance. This data element has been included because it is currently being captured in some clinical systems. This data can be derived from the substance where coding systems are used, and is effectively redundant in that situation. When searching on category, consider the implications of AllergyIntolerance resources without a category. For example, when searching on category = medication, medication allergies that don't have a category valued will not be returned. Refer to search for more information on how to search category with a :missing modifier to get allergies that don't have a category. Additionally, category should be used with caution because category can be subjective based on the sender. Category of an identified substance associated with allergies or intolerances. AllergyIntoleranceCategory (required) Constraints
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| criticality | Σ | 0..1 | codeBinding | There are no (further) constraints on this element Element idAllergyIntolerance.criticalityShort description low | high | unable-to-assess Alternate namesSeverity, Seriousness, Contra-indication, Risk DefinitionEstimate of the potential clinical harm, or seriousness, of the reaction to the identified substance. The default criticality value for any propensity to an adverse reaction should be 'Low Risk', indicating at the very least a relative contraindication to deliberate or voluntary exposure to the substance. 'High Risk' is flagged if the clinician has identified a propensity for a more serious or potentially life-threatening reaction, such as anaphylaxis, and implies an absolute contraindication to deliberate or voluntary exposure to the substance. If this element is missing, the criticality is unknown (though it may be known elsewhere). Systems that capture a severity at the condition level are actually representing the concept of criticality whereas the severity documented at the reaction level is representing the true reaction severity. Existing systems that are capturing both condition criticality and reaction severity may use the term "severity" to represent both. Criticality is the worst it could be in the future (i.e. situation-agnostic) whereas severity is situation-dependent. Estimate of the potential clinical harm, or seriousness, of a reaction to an identified substance. AllergyIntoleranceCriticality (required) Constraints
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| code | Σ | 1..1 | CodeableConceptBinding | Element idAllergyIntolerance.codeShort description Code that identifies the allergy or intolerance Alternate namesCode DefinitionCode for an allergy or intolerance statement (either a positive or a negated/excluded statement). This may be a code for a substance or pharmaceutical product that is considered to be responsible for the adverse reaction risk (e.g., "Latex"), an allergy or intolerance condition (e.g., "Latex allergy"), or a negated/excluded code for a specific substance or class (e.g., "No latex allergy") or a general or categorical negated statement (e.g., "No known allergy", "No known drug allergies"). Note: the substance for a specific reaction may be different from the substance identified as the cause of the risk, but it must be consistent with it. For instance, it may be a more specific substance (e.g. a brand medication) or a composite product that includes the identified substance. It must be clinically safe to only process the 'code' and ignore the 'reaction.substance'. If a receiving system is unable to confirm that AllergyIntolerance.reaction.substance falls within the semantic scope of AllergyIntolerance.code, then the receiving system should ignore AllergyIntolerance.reaction.substance. It is strongly recommended that this element be populated using a terminology, where possible. For example, some terminologies used include RxNorm, SNOMED CT, DM+D, NDFRT, ICD-9, IDC-10, UNII, and ATC. Plain text should only be used if there is no appropriate terminology available. Additional details can be specified in the text. When a substance or product code is specified for the 'code' element, the "default" semantic context is that this is a positive statement of an allergy or intolerance (depending on the value of the 'type' element, if present) condition to the specified substance/product. In the corresponding SNOMED CT allergy model, the specified substance/product is the target (destination) of the "Causative agent" relationship. The 'substanceExposureRisk' extension is available as a structured and more flexible alternative to the 'code' element for making positive or negative allergy or intolerance statements. This extension provides the capability to make "no known allergy" (or "no risk of adverse reaction") statements regarding any coded substance/product (including cases when a pre-coordinated "no allergy to x" concept for that substance/product does not exist). If the 'substanceExposureRisk' extension is present, the AllergyIntolerance.code element SHALL be omitted. Type of the substance/product, allergy or intolerance condition, or negation/exclusion codes for reporting no known allergies.
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| patient | Σ | 1..1 | Reference() | Element idAllergyIntolerance.patientShort description Who the sensitivity is for Alternate namesPatient DefinitionThe patient who has the allergy or intolerance.
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| id | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.patient.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.patient.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
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| reference | Σ C | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.patient.referenceShort description Literal reference, Relative, internal or absolute URL DefinitionA 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-1 Constraints
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this element Element idAllergyIntolerance.patient.typeShort description Type the reference refers to (e.g. "Patient") DefinitionThe 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 element Element idAllergyIntolerance.patient.identifierShort description Logical reference, when literal reference is not known DefinitionAn 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 element Element idAllergyIntolerance.patient.identifier.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.patient.identifier.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this element Element idAllergyIntolerance.patient.identifier.useShort description usual | official | temp | secondary | old (If known) DefinitionThe 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 element Element idAllergyIntolerance.patient.identifier.typeShort description Description of identifier DefinitionA 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 element Element idAllergyIntolerance.patient.identifier.systemShort description The namespace for the identifier value DefinitionEstablishes 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 element Element idAllergyIntolerance.patient.identifier.valueShort description The value that is unique DefinitionThe 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 element Element idAllergyIntolerance.patient.identifier.periodShort description Time period when id is/was valid for use DefinitionTime period during which identifier is/was valid for use.
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| assigner | Σ | 0..1 | Reference() | Element idAllergyIntolerance.patient.identifier.assignerShort description Organization that issued id (may be just text) DefinitionOrganization 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 element Element idAllergyIntolerance.patient.displayShort description Text alternative for the resource DefinitionPlain 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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| encounter | 0..1 | Reference(Encounter) | There are no (further) constraints on this element Element idAllergyIntolerance.encounterShort description Encounter when the allergy or intolerance was asserted DefinitionThe encounter when the allergy or intolerance was asserted.
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| id | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.encounter.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.encounter.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
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| reference | Σ C | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.encounter.referenceShort description Literal reference, Relative, internal or absolute URL DefinitionA 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-1 Constraints
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this element Element idAllergyIntolerance.encounter.typeShort description Type the reference refers to (e.g. "Patient") DefinitionThe 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 element Element idAllergyIntolerance.encounter.identifierShort description Logical reference, when literal reference is not known DefinitionAn 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 element Element idAllergyIntolerance.encounter.identifier.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.encounter.identifier.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this element Element idAllergyIntolerance.encounter.identifier.useShort description usual | official | temp | secondary | old (If known) DefinitionThe 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 element Element idAllergyIntolerance.encounter.identifier.typeShort description Description of identifier DefinitionA 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 element Element idAllergyIntolerance.encounter.identifier.systemShort description The namespace for the identifier value DefinitionEstablishes 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 element Element idAllergyIntolerance.encounter.identifier.valueShort description The value that is unique DefinitionThe 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 element Element idAllergyIntolerance.encounter.identifier.periodShort description Time period when id is/was valid for use DefinitionTime period during which identifier is/was valid for use.
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| assigner | Σ | 0..1 | Reference() | Element idAllergyIntolerance.encounter.identifier.assignerShort description Organization that issued id (may be just text) DefinitionOrganization 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 element Element idAllergyIntolerance.encounter.displayShort description Text alternative for the resource DefinitionPlain 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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| onset[x] | 0..1 | There are no (further) constraints on this element Element idAllergyIntolerance.onset[x]Short description When allergy or intolerance was identified DefinitionEstimated or actual date, date-time, or age when allergy or intolerance was identified.
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| onsetDateTime | dateTime | There are no (further) constraints on this element Data type | ||||
| onsetAge | Age | There are no (further) constraints on this element Data type | ||||
| onsetPeriod | Period | There are no (further) constraints on this element Data type | ||||
| onsetRange | Range | There are no (further) constraints on this element Data type | ||||
| onsetString | string | There are no (further) constraints on this element Data type | ||||
| recordedDate | 0..1 | dateTime | There are no (further) constraints on this element Element idAllergyIntolerance.recordedDateShort description Date first version of the resource instance was recorded DefinitionThe recordedDate represents when this particular AllergyIntolerance record was created in the system, which is often a system-generated date.
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| recorder | 0..1 | Reference( | | | RelatedPerson) | Element idAllergyIntolerance.recorderShort description Who recorded the sensitivity Alternate namesAuthor DefinitionIndividual who recorded the record and takes responsibility for its content. Reference( | | | RelatedPerson) Constraints
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| id | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.recorder.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.recorder.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
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| reference | Σ C | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.recorder.referenceShort description Literal reference, Relative, internal or absolute URL DefinitionA 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-1 Constraints
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this element Element idAllergyIntolerance.recorder.typeShort description Type the reference refers to (e.g. "Patient") DefinitionThe 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 element Element idAllergyIntolerance.recorder.identifierShort description Logical reference, when literal reference is not known DefinitionAn 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 element Element idAllergyIntolerance.recorder.identifier.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.recorder.identifier.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
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| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this element Element idAllergyIntolerance.recorder.identifier.useShort description usual | official | temp | secondary | old (If known) DefinitionThe 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 element Element idAllergyIntolerance.recorder.identifier.typeShort description Description of identifier DefinitionA 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 element Element idAllergyIntolerance.recorder.identifier.systemShort description The namespace for the identifier value DefinitionEstablishes 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 element Element idAllergyIntolerance.recorder.identifier.valueShort description The value that is unique DefinitionThe 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 element Element idAllergyIntolerance.recorder.identifier.periodShort description Time period when id is/was valid for use DefinitionTime period during which identifier is/was valid for use.
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| assigner | Σ | 0..1 | Reference() | Element idAllergyIntolerance.recorder.identifier.assignerShort description Organization that issued id (may be just text) DefinitionOrganization 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 element Element idAllergyIntolerance.recorder.displayShort description Text alternative for the resource DefinitionPlain 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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| asserter | Σ | 0..1 | Reference( | RelatedPerson | | ) | Element idAllergyIntolerance.asserterShort description Source of the information about the allergy Alternate namesSource, Informant DefinitionThe source of the information about the allergy that is recorded. The recorder takes responsibility for the content, but can reference the source from where they got it. Reference( | RelatedPerson | | ) Constraints
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| id | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.asserter.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.asserter.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
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| reference | Σ C | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.asserter.referenceShort description Literal reference, Relative, internal or absolute URL DefinitionA 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-1 Constraints
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| type | Σ | 0..1 | uriBinding | There are no (further) constraints on this element Element idAllergyIntolerance.asserter.typeShort description Type the reference refers to (e.g. "Patient") DefinitionThe 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 element Element idAllergyIntolerance.asserter.identifierShort description Logical reference, when literal reference is not known DefinitionAn 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 element Element idAllergyIntolerance.asserter.identifier.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.asserter.identifier.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
| ||
| use | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this element Element idAllergyIntolerance.asserter.identifier.useShort description usual | official | temp | secondary | old (If known) DefinitionThe 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 element Element idAllergyIntolerance.asserter.identifier.typeShort description Description of identifier DefinitionA 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 element Element idAllergyIntolerance.asserter.identifier.systemShort description The namespace for the identifier value DefinitionEstablishes 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 element Element idAllergyIntolerance.asserter.identifier.valueShort description The value that is unique DefinitionThe 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 element Element idAllergyIntolerance.asserter.identifier.periodShort description Time period when id is/was valid for use DefinitionTime period during which identifier is/was valid for use.
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| assigner | Σ | 0..1 | Reference() | Element idAllergyIntolerance.asserter.identifier.assignerShort description Organization that issued id (may be just text) DefinitionOrganization 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 element Element idAllergyIntolerance.asserter.displayShort description Text alternative for the resource DefinitionPlain 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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| lastOccurrence | 0..1 | dateTime | There are no (further) constraints on this element Element idAllergyIntolerance.lastOccurrenceShort description Date(/time) of last known occurrence of a reaction DefinitionRepresents the date and/or time of the last known occurrence of a reaction event. This date may be replicated by one of the Onset of Reaction dates. Where a textual representation of the date of last occurrence is required e.g. 'In Childhood, '10 years ago' the Comment element should be used.
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| note | 0..* | Annotation | There are no (further) constraints on this element Element idAllergyIntolerance.noteShort description Additional text not captured in other fields DefinitionAdditional narrative about the propensity for the Adverse Reaction, not captured in other fields. For example: including reason for flagging a seriousness of 'High Risk'; and instructions related to future exposure or administration of the substance, such as administration within an Intensive Care Unit or under corticosteroid cover. The notes should be related to an allergy or intolerance as a condition in general and not related to any particular episode of it. For episode notes and descriptions, use AllergyIntolerance.event.description and AllergyIntolerance.event.notes.
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| id | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.note.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.note.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
| ||
| author[x] | Σ | 0..1 | There are no (further) constraints on this element Element idAllergyIntolerance.note.author[x]Short description Individual responsible for the annotation DefinitionThe individual responsible for making the annotation. Organization is used when there's no need for specific attribution as to who made the comment.
| |||
| authorString | string | Data type | ||||
| authorReference | Reference( | | RelatedPerson | ) | Data type Reference( | | RelatedPerson | ) | ||||
| time | Σ | 0..1 | dateTime | There are no (further) constraints on this element Element idAllergyIntolerance.note.timeShort description When the annotation was made DefinitionIndicates when this particular annotation was made.
| ||
| text | Σ | 1..1 | markdown | There are no (further) constraints on this element Element idAllergyIntolerance.note.textShort description The annotation - text content (as markdown) DefinitionThe text of the annotation in markdown format.
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| reaction | 0..* | BackboneElement | There are no (further) constraints on this element Element idAllergyIntolerance.reactionShort description Adverse Reaction Events linked to exposure to substance DefinitionDetails about each adverse reaction event linked to exposure to the identified substance.
| |||
| id | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.reaction.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.reaction.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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 element Element idAllergyIntolerance.reaction.modifierExtensionShort description Extensions that cannot be ignored even if unrecognized Alternate namesextensions, user content, modifiers DefinitionMay 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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| substance | 0..1 | CodeableConceptBinding | Element idAllergyIntolerance.reaction.substanceShort description Specific substance or pharmaceutical product considered to be responsible for event DefinitionIdentification of the specific substance (or pharmaceutical product) considered to be responsible for the Adverse Reaction event. Note: the substance for a specific reaction may be different from the substance identified as the cause of the risk, but it must be consistent with it. For instance, it may be a more specific substance (e.g. a brand medication) or a composite product that includes the identified substance. It must be clinically safe to only process the 'code' and ignore the 'reaction.substance'. If a receiving system is unable to confirm that AllergyIntolerance.reaction.substance falls within the semantic scope of AllergyIntolerance.code, then the receiving system should ignore AllergyIntolerance.reaction.substance. Coding of the specific substance (or pharmaceutical product) with a terminology capable of triggering decision support should be used wherever possible. The 'code' element allows for the use of a specific substance or pharmaceutical product, or a group or class of substances. In the case of an allergy or intolerance to a class of substances, (for example, "penicillins"), the 'reaction.substance' element could be used to code the specific substance that was identified as having caused the reaction (for example, "amoxycillin"). Duplication of the value in the 'code' and 'reaction.substance' elements is acceptable when a specific substance has been recorded in 'code'. Codes defining the type of the substance (including pharmaceutical products).
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| manifestation | 1..* | CodeableConceptBinding | Element idAllergyIntolerance.reaction.manifestationShort description Clinical symptoms/signs associated with the Event Alternate namesSymptoms, Signs DefinitionClinical symptoms and/or signs that are observed or associated with the adverse reaction event. Manifestation can be expressed as a single word, phrase or brief description. For example: nausea, rash or no reaction. It is preferable that manifestation should be coded with a terminology, where possible. The values entered here may be used to display on an application screen as part of a list of adverse reactions, as recommended in the UK NHS CUI guidelines. Terminologies commonly used include, but are not limited to, SNOMED CT or ICD10. Clinical symptoms and/or signs that are observed or associated with an Adverse Reaction Event.
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| description | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.reaction.descriptionShort description Description of the event as a whole Alternate namesNarrative, Text DefinitionText description about the reaction as a whole, including details of the manifestation if required. Use the description to provide any details of a particular event of the occurred reaction such as circumstances, reaction specifics, what happened before/after. Information, related to the event, but not describing a particular care should be captured in the comment field. For example: at the age of four, the patient was given penicillin for strep throat and subsequently developed severe hives.
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| onset | 0..1 | dateTime | There are no (further) constraints on this element Element idAllergyIntolerance.reaction.onsetShort description Date(/time) when manifestations showed DefinitionRecord of the date and/or time of the onset of the Reaction.
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| severity | 0..1 | codeBinding | There are no (further) constraints on this element Element idAllergyIntolerance.reaction.severityShort description mild | moderate | severe (of event as a whole) DefinitionClinical assessment of the severity of the reaction event as a whole, potentially considering multiple different manifestations. It is acknowledged that this assessment is very subjective. There may be some specific practice domains where objective scales have been applied. Objective scales can be included in this model as extensions. Clinical assessment of the severity of a reaction event as a whole, potentially considering multiple different manifestations. AllergyIntoleranceSeverity (required) Constraints
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| exposureRoute | 0..1 | CodeableConceptBinding | Element idAllergyIntolerance.reaction.exposureRouteShort description How the subject was exposed to the substance DefinitionIdentification of the route by which the subject was exposed to the substance. Coding of the route of exposure with a terminology should be used wherever possible. A coded concept describing the route or physiological path of administration of a therapeutic agent into or onto the body of a subject.
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| note | 0..* | Annotation | There are no (further) constraints on this element Element idAllergyIntolerance.reaction.noteShort description Text about event not captured in other fields DefinitionAdditional text about the adverse reaction event not captured in other fields. Use this field to record information indirectly related to a particular event and not captured in the description. For example: Clinical records are no longer available, recorded based on information provided to the patient by her mother and her mother is deceased.
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| id | 0..1 | string | There are no (further) constraints on this element Element idAllergyIntolerance.reaction.note.idShort description Unique id for inter-element referencing DefinitionUnique 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 element Element idAllergyIntolerance.reaction.note.extensionShort description Additional content defined by implementations Alternate namesextensions, user content DefinitionMay 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) url Constraints
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| author[x] | Σ | 0..1 | There are no (further) constraints on this element Element idAllergyIntolerance.reaction.note.author[x]Short description Individual responsible for the annotation DefinitionThe individual responsible for making the annotation. Organization is used when there's no need for specific attribution as to who made the comment.
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| authorString | string | Data type | ||||
| authorReference | Reference( | | RelatedPerson | ) | Data type Reference( | | RelatedPerson | ) | ||||
| time | Σ | 0..1 | dateTime | There are no (further) constraints on this element Element idAllergyIntolerance.reaction.note.timeShort description When the annotation was made DefinitionIndicates when this particular annotation was made.
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| text | Σ | 1..1 | markdown | There are no (further) constraints on this element Element idAllergyIntolerance.reaction.note.textShort description The annotation - text content (as markdown) DefinitionThe text of the annotation in markdown format.
|
| AllergyIntolerance | .. | |
| AllergyIntolerance.extension | 0.. | |
| AllergyIntolerance.extension:evidence | Extension | 0.. |
| AllergyIntolerance.identifier | .. | |
| AllergyIntolerance.identifier.assigner | Reference() | .. |
| AllergyIntolerance.clinicalStatus | .. | |
| AllergyIntolerance.clinicalStatus.extension | 0.. | |
| AllergyIntolerance.clinicalStatus.extension:allergyIntoleranceEnd | Extension | 0..1 |
| AllergyIntolerance.code | 1.. | |
| AllergyIntolerance.patient | Reference() | .. |
| AllergyIntolerance.patient.identifier | .. | |
| AllergyIntolerance.patient.identifier.assigner | Reference() | .. |
| AllergyIntolerance.encounter | Reference(Encounter) | .. |
| AllergyIntolerance.encounter.identifier | .. | |
| AllergyIntolerance.encounter.identifier.assigner | Reference() | .. |
| AllergyIntolerance.recorder | Reference( | | | RelatedPerson) | .. |
| AllergyIntolerance.recorder.identifier | .. | |
| AllergyIntolerance.recorder.identifier.assigner | Reference() | .. |
| AllergyIntolerance.asserter | Reference( | RelatedPerson | | ) | .. |
| AllergyIntolerance.asserter.identifier | .. | |
| AllergyIntolerance.asserter.identifier.assigner | Reference() | .. |
| AllergyIntolerance.note | .. | |
| AllergyIntolerance.note.author[x] | Reference( | | RelatedPerson | ), string | .. |
| AllergyIntolerance.reaction | .. | |
| AllergyIntolerance.reaction.substance | .. | |
| AllergyIntolerance.reaction.manifestation | .. | |
| AllergyIntolerance.reaction.exposureRoute | .. | |
| AllergyIntolerance.reaction.note | .. | |
| AllergyIntolerance.reaction.note.author[x] | Reference( | | RelatedPerson | ), string | .. |
The following are feasible use cases for the UK Core AllergyIntolerance profile:
The query against a clinical system or shared record to return recorded allergies as AllergyIntolerance resources.
Returned results could be ordered by recordedDate and/or lastOccurrence.
Returned results MAY include multiple instances of the same allergy, as per the causative agent (code), but with different clinicalStatus values. The newer of such records either by recordedDate or lastOccurrence SHOULD be deemed the latest or current record of the allergy.
For when systems need to exchange allergy information within a point-to-point message. The AllergyIntolerance resources can be included within a FHIR Message (within the Bundle), or within a FHIR Document alongside other structured resources and text-based data.
Allergy information SHOULD NOT be duplicated between systems (and, in England, this aligns with the NHS Data Strategy). When exchanging allergies data between systems be mindful of whether the receiving system plans to persist the data. If persisted, processes SHALL be put in place to ensure the data is updated if/when the source record is updated.
When allergy records are migrated between systems, the AllergyIntolerance resource could be used as a data migration standard.
Where migrated data is not coded, uses retired / invalidated codes, or coded with a terminology which cannot be mapped to SNOMED CT, then refer to the guidance on using degraded drug / non-drug allergy codes.
More information about the extensions can be found using the links below.
| Extension | Context | Link | Comment |
|---|---|---|---|
| allergyIntoleranceEnd | AllergyIntolerance.clinicalStatus | Extension UKCore-AllergyIntoleranceEnd | For the date when the allergy or intolerance clinicalStatus is updated to inactive or resolved. |
| evidence | AllergyIntolerance | Extension UKCore-Evidence | To reference a DiagnosticReport resource for investigations that confirm the certainty of the allergy or intolerance diagnosis. |
verificationStatusAn optional value from a required terminology binding containing the values;
unconfirmedconfirmedrefutedentered-in-error.Note: The use of entered-in-error dictates the population of the clinicalStatus element.
codeIdentifies the causative agent for the allergy or intolerance.
When recording an allergy to a medication substance, the provider system SHOULD use a dm+d concept class or alternatively, when the allergy is not recorded against a medication substance, the relevant set of SNOMED CT. These can be found within the ValueSet UKCore-AllergyCode.
Degraded drug allergy codes can be used in three scenarios, with examples.
| AllergyIntolerance.id[0] | UKCore-AllergyIntolerance-Sn-NonDrugAllergy-Example |
| AllergyIntolerance.clinicalStatus[0].coding[0].system[0] | http://terminology.hl7.org/CodeSystem/allergyintolerance-clinical |
| AllergyIntolerance.clinicalStatus[0].coding[0].code[0] | active |
| AllergyIntolerance.clinicalStatus[0].coding[0].display[0] | Active |
| AllergyIntolerance.verificationStatus[0].coding[0].system[0] | http://terminology.hl7.org/CodeSystem/allergyintolerance-verification |
| AllergyIntolerance.verificationStatus[0].coding[0].code[0] | confirmed |
| AllergyIntolerance.verificationStatus[0].coding[0].display[0] | Confirmed |
| AllergyIntolerance.code[0].coding[0].system[0] | http://snomed.info/sct |
| AllergyIntolerance.code[0].coding[0].code[0] | 196471000000108 |
| AllergyIntolerance.code[0].coding[0].display[0] | Transfer-degraded non-drug allergy (record artifact) |
| AllergyIntolerance.code[0].text[0] | Latex |
| AllergyIntolerance.patient[0].reference[0] | Patient/UKCore-Patient-RichardSmith-Example |
| AllergyIntolerance |
| id : UKCore-AllergyIntolerance-Sn-NonDrugAllergy-Example |
| clinicalStatus |
| coding |
| system : http://terminology.hl7.org/CodeSystem/allergyintolerance-clinical |
| code : active |
| display : Active |
| verificationStatus |
| coding |
| system : http://terminology.hl7.org/CodeSystem/allergyintolerance-verification |
| code : confirmed |
| display : Confirmed |
| code |
| coding |
| system : http://snomed.info/sct |
| code : 196471000000108 |
| display : Transfer-degraded non-drug allergy (record artifact) |
| text : Latex |
| patient |
| reference : Patient/UKCore-Patient-RichardSmith-Example |
| AllergyIntolerance.id[0] | UKCore-AllergyIntolerance-Sn-DrugAllergy-Example |
| AllergyIntolerance.clinicalStatus[0].coding[0].system[0] | http://terminology.hl7.org/CodeSystem/allergyintolerance-clinical |
| AllergyIntolerance.clinicalStatus[0].coding[0].code[0] | active |
| AllergyIntolerance.clinicalStatus[0].coding[0].display[0] | Active |
| AllergyIntolerance.verificationStatus[0].coding[0].system[0] | http://terminology.hl7.org/CodeSystem/allergyintolerance-verification |
| AllergyIntolerance.verificationStatus[0].coding[0].code[0] | confirmed |
| AllergyIntolerance.verificationStatus[0].coding[0].display[0] | Confirmed |
| AllergyIntolerance.code[0].coding[0].system[0] | http://snomed.info/sct |
| AllergyIntolerance.code[0].coding[0].code[0] | 196461000000101 |
| AllergyIntolerance.code[0].coding[0].display[0] | Transfer-degraded drug allergy (record artifact) |
| AllergyIntolerance.code[0].text[0] | 9339101000001105 | Septrin |
| AllergyIntolerance.patient[0].reference[0] | Patient/UKCore-Patient-RichardSmith-Example |
| AllergyIntolerance |
| id : UKCore-AllergyIntolerance-Sn-DrugAllergy-Example |
| clinicalStatus |
| coding |
| system : http://terminology.hl7.org/CodeSystem/allergyintolerance-clinical |
| code : active |
| display : Active |
| verificationStatus |
| coding |
| system : http://terminology.hl7.org/CodeSystem/allergyintolerance-verification |
| code : confirmed |
| display : Confirmed |
| code |
| coding |
| system : http://snomed.info/sct |
| code : 196461000000101 |
| display : Transfer-degraded drug allergy (record artifact) |
| text : 9339101000001105 | Septrin |
| patient |
| reference : Patient/UKCore-Patient-RichardSmith-Example |
Note: “Septrin” is a long discontinued brand name of an antibiotic.
| AllergyIntolerance.id[0] | UKCore-AllergyIntolerance-Sn-DrugAllergyToEggProtein-Example |
| AllergyIntolerance.clinicalStatus[0].coding[0].system[0] | http://terminology.hl7.org/CodeSystem/allergyintolerance-clinical |
| AllergyIntolerance.clinicalStatus[0].coding[0].code[0] | active |
| AllergyIntolerance.clinicalStatus[0].coding[0].display[0] | Active |
| AllergyIntolerance.verificationStatus[0].coding[0].system[0] | http://terminology.hl7.org/CodeSystem/allergyintolerance-verification |
| AllergyIntolerance.verificationStatus[0].coding[0].code[0] | confirmed |
| AllergyIntolerance.verificationStatus[0].coding[0].display[0] | Confirmed |
| AllergyIntolerance.code[0].coding[0].system[0] | http://snomed.info/sct |
| AllergyIntolerance.code[0].coding[0].code[0] | 196461000000101 |
| AllergyIntolerance.code[0].coding[0].display[0] | Transfer-degraded drug allergy (record artifact) |
| AllergyIntolerance.code[0].text[0] | 213020009 | Allergy to egg protein |
| AllergyIntolerance.patient[0].reference[0] | Patient/UKCore-Patient-RichardSmith-Example |
| AllergyIntolerance |
| id : UKCore-AllergyIntolerance-Sn-DrugAllergyToEggProtein-Example |
| clinicalStatus |
| coding |
| system : http://terminology.hl7.org/CodeSystem/allergyintolerance-clinical |
| code : active |
| display : Active |
| verificationStatus |
| coding |
| system : http://terminology.hl7.org/CodeSystem/allergyintolerance-verification |
| code : confirmed |
| display : Confirmed |
| code |
| coding |
| system : http://snomed.info/sct |
| code : 196461000000101 |
| display : Transfer-degraded drug allergy (record artifact) |
| text : 213020009 | Allergy to egg protein |
| patient |
| reference : Patient/UKCore-Patient-RichardSmith-Example |
There can be an explicit assertion of ‘No Known Allergies’ using the SNOMED CT 'No known allergy' hierarchy 716186003 | No known allergy. The parent concept, or any child concept MAY be used.-
| AllergyIntolerance.id[0] | UKCore-AllergyIntolerance-Sn-NegHandlNoKnownAllergies-Example |
| AllergyIntolerance.clinicalStatus[0].coding[0].system[0] | http://terminology.hl7.org/CodeSystem/allergyintolerance-clinical |
| AllergyIntolerance.clinicalStatus[0].coding[0].code[0] | active |
| AllergyIntolerance.clinicalStatus[0].coding[0].display[0] | Active |
| AllergyIntolerance.verificationStatus[0].coding[0].system[0] | http://terminology.hl7.org/CodeSystem/allergyintolerance-verification |
| AllergyIntolerance.verificationStatus[0].coding[0].code[0] | confirmed |
| AllergyIntolerance.verificationStatus[0].coding[0].display[0] | Confirmed |
| AllergyIntolerance.code[0].coding[0].system[0] | http://snomed.info/sct |
| AllergyIntolerance.code[0].coding[0].code[0] | 409137002 |
| AllergyIntolerance.code[0].coding[0].display[0] | No known drug allergy (situation) |
| AllergyIntolerance.patient[0].reference[0] | Patient/UKCore-Patient-RichardSmith-Example |
| AllergyIntolerance |
| id : UKCore-AllergyIntolerance-Sn-NegHandlNoKnownAllergies-Example |
| clinicalStatus |
| coding |
| system : http://terminology.hl7.org/CodeSystem/allergyintolerance-clinical |
| code : active |
| display : Active |
| verificationStatus |
| coding |
| system : http://terminology.hl7.org/CodeSystem/allergyintolerance-verification |
| code : confirmed |
| display : Confirmed |
| code |
| coding |
| system : http://snomed.info/sct |
| code : 409137002 |
| display : No known drug allergy (situation) |
| patient |
| reference : Patient/UKCore-Patient-RichardSmith-Example |
If other AllergyIntolerance resources exist in the patient record with a clinicalStatus of active then the system SHALL ignore the 'No Known Allergies' resource instance. The existence of recorded and active allergies takes precedence over instances of 'No Known Allergies' records.
The representation of the causative agent as text is supported within the FHIR standard but this SHOULD only be used as a last resort if a suitable coded term does not exist within the SNOMED CT terminology or if using a degraded allergy code is not appropriate.
nullFlavorThe UK Core recommendation is that the nullFlavor is not used for the causative agent, even though it is permitted within the FHIR standard.
onset[x]Record of the date and/or time of the onset of the reaction caused by the allergy or intolerance which can be recorded in one of five ways;
onsetDateTimeonsetAgeonsetPeriodonsetRangeonsetString.Provider systems are recommended to support at least onsetDateTime and onsetAge where this date is available.
It is recommended not to record the onset using an onsetPeriod or onsetRange as these data types are complex and less useful. If the exact onset date is not known, but was between two known dates, e.g. 2018 and 2019, then use the lower/older date as the onsetDateTime instead of using an onsetPeriod.
It is recommended not to record the onset using an onsetString as this data will not be machine processable.
Consumer systems SHALL be able to handle any of the onset data types.
recordedDateThe date the first version of the resource instance was recorded.
The recordedDate represents when this particular AllergyIntolerance record was created in the system, which is often a system-generated date.
If the instance of the resource is updated via an operation like a RESTful PATCH or PUT then the recordedDate is not updated and remains the date the resource instance was recorded.
recorderA reference to the individual who recorded the record and takes responsibility for its content. The resource being referenced SHOULD conform to one of the following:
asserterA reference to the source of the information about the allergy. The resource being referenced SHOULD conform to one of the following:
Provider systems SHOULD provide at least the following minimum data within the referenced resource.
Practitioner
PractitionerRole
Patient
RelatedPerson
Where a human asserter is not captured or cannot be confirmed, i.e. a Practitioner, Patient or RelatedPerson, the provider systems SHOULD reference an PractitionerRole.organisation and/or PractitionerRole.healthcareService within a PractitionerRole, using the associated ODS code.
For example, asserted by "MILTON KEYNES UNIVERSITY HOSPITAL NHS FOUNDATION TRUST".
| PractitionerRole.id[0] | UKCore-PractitionerRole-Sn-Organization-Code-Example |
| PractitionerRole.identifier[0].system[0] | https://fhir.nhs.uk/Id/sds-role-profile-id |
| PractitionerRole.identifier[0].value[0] | 100334993514 |
| PractitionerRole.organization[0].identifier[0].system[0] | https://fhir.nhs.uk/Id/ods-organization-code |
| PractitionerRole.organization[0].identifier[0].value[0] | RD8 |
| PractitionerRole.organization[0].display[0] | MILTON KEYNES UNIVERSITY HOSPITAL NHS FOUNDATION TRUST |
| PractitionerRole |
| id : UKCore-PractitionerRole-Sn-Organization-Code-Example |
| identifier |
| system : https://fhir.nhs.uk/Id/sds-role-profile-id |
| value : 100334993514 |
| organization |
| identifier |
| system : https://fhir.nhs.uk/Id/ods-organization-code |
| value : RD8 |
| display : MILTON KEYNES UNIVERSITY HOSPITAL NHS FOUNDATION TRUST |
lastOccurrenceRepresents the date and/or time of the last known occurrence of a reaction event.
noteAn optional element for when the clinical user wishes to provide supporting textual information for the allergy record that cannot be conveyed within other elements of the resource.
Where a provider system only has the capability to record a note at one level it SHOULD populate the AllergyIntolerance.note elements with any notes data captured within the system, irrespective of the data level that the system uses to capture that data.
Where a provider system has the capability to record a note at both the AllergyIntolerance and at the AllergyIntolerance.reaction level it SHOULD populate both with the relevant notes applicable to each level.
Consumer systems SHALL be able to handle both multiple AllergyIntolerance.note and multiple AllergyIntolerance.reaction.note elements.
reactionDetails about each adverse reaction event linked to exposure to the identified substance.
The AllergyIntolerance.reaction is optional, but where a severity is available in the provider system it SHALL be included to convey severity even if no other reaction details are explicitly available. If this is the case the AllergyIntolerance.reaction.manifestation SHALL be coded as the nullFlavor NI.
reaction.substanceAn element to record the specific substance or pharmaceutical product considered to be responsible for event using the ValueSet UKCore-AllergySubstance
reaction.manifestationA mandatory element if a reaction is recorded for the clinical symptoms and/or signs that are observed or associated with the adverse reaction event.
Use nullFlavor NI for the case when a reaction.severity needs to be shared but where a manifestation is not known.
reaction.severityAn optional value from a required terminology binding containing the values;
mildmoderatesevereWhere a severity is available in the provider system it SHALL be included to convey severity even if no other reaction details are explicitly available.
Where the severity is not known, this element SHOULD be omitted.
Use of this element when populated as severe MAY be used to express life threatening allergies, used in conjunction with the AllergyIntolerance.criticality element.
An omitted severity will either mean severity data is not available within the provider system or the severity is not known by the provider system.
reaction.exposureRouteAn optional element to identify the route by which the patient was exposed to the substance.
If this data is available the binding SHOULD be to the ValueSet UKCore-SubstanceOrProductAdministrationRoute.
Consumer systems are recommended not to include this coded information within automated clinical decision support. This is because it could either mean two quite different things;
OR
reaction.noteAn optional element for when the clinical user wishes to provide supporting textual information for the reaction that cannot be conveyed within other elements of the backbone element.
See the related guidance above for AllergyIntolerance.note.