Continua Personal Health Device Data Implementation Guide

Phd Base Observation Profile

The Phd Base Observation profile contains the elements that are common to all Phd Observation profiles describing measurements. These element are:

code: what the measurement is,
subject: the patient this measurement refers to,
effective[ x ]: the time stamp and perhaps duration of the measurement,
device: the PHD taking the measurement,
derivedFrom: references to any coincident time stamp and/or source handle reference, and
components: contains any additional measurement descriptions (supplemental types, relative time stamps, and measurement status

The structure definition is given below:

Observation	I		Observation	Element id Observation Short description Measurements and simple assertions Alternate names Vital Signs, Measurement, Results, Tests Definition Measurements and simple assertions made about a patient, device or other subject. Comments This variant on the Observation defines a base profile for the PHD Observation profiles. This profile is abstract and does not exist alone. Data type Observation Constraints dom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources `contained.contained.empty()` dom-1: If the resource is contained in another resource, it SHALL NOT contain any narrative `contained.text.empty()` dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated `contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()` dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource `contained.where(('#'+id in %resource.descendants().reference).not()).empty()` obs-7: If code is the same as a component code then the value element associated with the code SHALL NOT be present `value.empty() or component.code.where( (coding.code = %resource.code.coding.code) and (coding.system = %resource.code.coding.system)).empty()` obs-6: dataAbsentReason SHALL only be present if Observation.value[x] is not present `dataAbsentReason.empty() or value.empty()` Mappings rim: Entity. Role, or Act workflow: Event sct-concept: < 363787002 \|Observable entity\| v2: OBX rim: Observation[classCode=OBS, moodCode=EVN] w5: clinical.diagnostics
id	Σ	0..1	id	There are no (further) constraints on this element Element id Observation.id Short description Logical id of this artifact Definition The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes. Comments The only time that a resource does not have an id is when it is being submitted to the server using a create operation. Data type id Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
meta	Σ	0..1	Meta	There are no (further) constraints on this element Element id Observation.meta Short description Metadata about the resource Definition The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content may not always be associated with version changes to the resource. Data type Meta Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a rim: N/A
implicitRules	Σ ?!	0..1	uri	There are no (further) constraints on this element Element id Observation.implicitRules Short description A set of rules under which this content was created Definition A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Comments 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. This element is labelled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation. Data type uri Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
language		0..1	codeBinding	There are no (further) constraints on this element Element id Observation.language Short description Language of the resource content Definition The base language in which the resource is written. Comments 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). Data type code Binding A human language. ?? (extensible) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
text	I	0..1	Narrative	There are no (further) constraints on this element Element id Observation.text Short description Text summary of the resource, for human interpretation Alternate names narrative, html, xhtml, display Definition A human-readable narrative that contains a summary of the resource, and may 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. Comments 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 in formation is added later. Data type Narrative Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a rim: N/A rim: Act.text?
contained		0..*	Resource	There are no (further) constraints on this element Element id Observation.contained Short description Contained, inline Resources Alternate names inline resources, anonymous resources, contained resources Definition These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope. Comments 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. Data type Resource Mappings rim: Entity. Role, or Act rim: N/A
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the resource. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
modifierExtension	?! I	0..*	Extension	There are no (further) constraints on this element Element id Observation.modifierExtension Short description Extensions that cannot be ignored Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the resource, and that modifies the understanding of the element that contains it. Usually modifier elements provide negation or qualification. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
identifier	Σ	0..*	Identifier	Element id Observation.identifier Short description Business Identifier for observation Definition A unique identifier assigned to this observation. Requirements Allows observations to be distinguished and referenced. Comments For Phd Observations that require conditional creates the create selection criteria will be based upon the information placed in an identifier element. The information will uniquely represent the measurement content. How that information is generated is dependent upon the Phd Observation Profile. Data type Identifier Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CX / EI (occasionally, more often EI maps to a resource id or a URL) rim: II - see see identifier pattern at http://wiki.hl7.org/index.php?title=Common_Design_Patterns#Identifier_Pattern for relevant discussion. The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs. Also maps to Role[classCode=IDENT] servd: Identifier workflow: Event.identifier v2: OBX.21 For OBX segments from systems without OBX-21 support a combination of ORC/OBR and OBX must be negotiated between trading partners to uniquely identify the OBX segment. Depending on how V2 has been implemented each of these may be an option: 1) OBR-3 + OBX-3 + OBX-4 or 2) OBR-3 + OBR-4 + OBX-3 + OBX-4 or 2) some other way to uniquely ID the OBR/ORC + OBX-3 + OBX-4. rim: id w5: id
basedOn	Σ I	0..*	Reference(http://hl7.org/fhir/StructureDefinition/CarePlan \| http://hl7.org/fhir/StructureDefinition/DeviceRequest \| http://hl7.org/fhir/StructureDefinition/ImmunizationRecommendation \| http://hl7.org/fhir/StructureDefinition/MedicationRequest \| http://hl7.org/fhir/StructureDefinition/NutritionOrder \| http://hl7.org/fhir/StructureDefinition/ProcedureRequest \| http://hl7.org/fhir/StructureDefinition/ReferralRequest)	There are no (further) constraints on this element Element id Observation.basedOn Short description Fulfills plan, proposal or order Alternate names Fulfills Definition A plan, proposal or order that is fulfilled in whole or in part by this event. Requirements Allows tracing of authorization for the event and tracking whether proposals/recommendations were acted upon. Comments References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository. Data type Reference(http://hl7.org/fhir/StructureDefinition/CarePlan \| http://hl7.org/fhir/StructureDefinition/DeviceRequest \| http://hl7.org/fhir/StructureDefinition/ImmunizationRecommendation \| http://hl7.org/fhir/StructureDefinition/MedicationRequest \| http://hl7.org/fhir/StructureDefinition/NutritionOrder \| http://hl7.org/fhir/StructureDefinition/ProcedureRequest \| http://hl7.org/fhir/StructureDefinition/ReferralRequest) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ref-1: SHALL have a contained resource if a local reference is provided `reference.startsWith('#').not() or (reference.substring(1).trace('url') in %resource.contained.id.trace('ids'))` Mappings rim: n/a rim: The target of a resource reference is a RIM entry point (Act, Role, or Entity) workflow: Event.basedOn v2: ORC rim: .outboundRelationship[typeCode=FLFS].target
status	Σ ?!	1..1	codeBinding	Element id Observation.status Short description registered \| preliminary \| final \| amended + Definition The status of the result value. Either 'final' or 'preliminary' Requirements Need to track the status of individual results. Some results are finalized before the whole report is finalized. Comments The value shall be set to 'final' unless a Measurement-Status attribute or Nu-Observed-Value attribute status field indicates that the measurement is preliminary. In that case this field shall be set to 'preliminary' Data type code Binding Codes providing the status of an observation. ?? (required) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a workflow: Event.status sct-concept: < 445584004 \|Report by finality status\| v2: OBX-11 rim: status Amended & Final are differentiated by whether it is the subject of a ControlAct event with a type of "revise" w5: status
category		0..*	CodeableConceptBinding	There are no (further) constraints on this element Element id Observation.category Short description Classification of type of observation Definition A code that classifies the general type of observation being made. Requirements Used for filtering what observations are retrieved and displayed. Comments In addition to the required category valueset, this element allows various categorization schemes based on the owner’s definition of the category and effectively multiple categories can be used at once. The level of granularity is defined by the category concepts in the value set. Data type CodeableConcept Binding Codes for high level observation categories. ?? (preferred) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE rim: CD orim: fhir:CodeableConcept rdfs:subClassOf dt:CD rim: .outboundRelationship[typeCode="COMP].target[classCode="LIST", moodCode="EVN"].code w5: class
code	Σ	1..1	CodeableConcept	There are no (further) constraints on this element Element id Observation.code Short description Type of observation (code / type) Alternate names Name Definition Describes what was observed. Sometimes this is called the observation "name". Requirements Knowing what kind of observation is being made is essential to understanding the observation. Comments Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination. Data type CodeableConcept Binding Codes identifying names of simple observations. ?? (example) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE rim: CD orim: fhir:CodeableConcept rdfs:subClassOf dt:CD workflow: Event.code sct-concept: < 363787002 \|Observable entity\| OR < 386053000 \|Evaluation procedure\| v2: OBX-3 rim: code sct-attr: 116680003 \|Is a\| w5: what
id		0..1	string	There are no (further) constraints on this element Element id Observation.code.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.code.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
coding	Σ	1..*	Coding	Element id Observation.code.coding Short description Code defined by a terminology system Definition A reference to a code defined by a terminology system. Requirements Allows for translations and alternate encodings within a code system. Also supports communication of the same instance to systems requiring different encodings. Comments 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. Data type Coding Sliced: Ordered, Open, by system(Value) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE subset one of the sets of component 1-3 or 4-6 rim: CV orim: fhir:Coding rdfs:subClassOf dt:CDCoding v2: CE.1-8, CE.10-22 rim: union(., ./translation) orim: fhir:CodeableConcept.coding rdfs:subPropertyOf dt:CD.coding
11073Type	Σ	1..1	Coding	Element id Observation.code.coding:11073Type Short description The 11073-10101 code for the measurement Definition A reference to a code defined by a terminology system. Requirements Allows for translations and alternate encodings within a code system. Also supports communication of the same instance to systems requiring different encodings. Comments For non-compound 11073-20601 metric numeric measurements, this code is obtained from one or more of the Type, Metric-Id, Nu-Observed-Value, and Metric-Id-Partition attributes. The algorithm to get the 16-bit partition and 16-bit term code is as follows: 1. The partition and term code are obtained from the Type attribute. 2. If there is a Metric-Id attribute the term code comes from this attribute. 3. If there is a Nu-Observed-Value attribute the term code comes from this attribute. 4. If the term code is NOT from the Type attribute, and there is a Metric-Id-Partition attribute, the partition comes from this attribute. 5. The 32-bit 11073-10101 code value is given by partition * 2 16 + term code. It is this value that is placed in the code.coding.code element for this 11073Type slice. For compound numeric measurements, the code comes from the Type attribute. Data type Coding Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE subset one of the sets of component 1-3 or 4-6 rim: CV orim: fhir:Coding rdfs:subClassOf dt:CDCoding v2:** CE.1-8, CE.10-22 rim: union(., ./translation) orim: fhir:CodeableConcept.coding rdfs:subPropertyOf dt:CD.coding
id		0..1	string	There are no (further) constraints on this element Element id Observation.code.coding:11073Type.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.code.coding:11073Type.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
system	Σ	1..1	uriFixed Value	Element id Observation.code.coding:11073Type.system Short description Identity of the terminology system Definition The identification of the code system that defines the meaning of the symbol in the code. Requirements Need to be unambiguous about the source of the definition of the symbol. Comments The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should de-reference to some definition that establish the system clearly and unambiguously. Data type uri Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Fixed value urn:iso:std:iso:11073:10101 Mappings rim: n/a v2: CE.3 rim:* ./codeSystem orim: fhir:Coding.system rdfs:subPropertyOf dt:CDCoding.codeSystem
version	Σ	0..1	string	There are no (further) constraints on this element Element id Observation.code.coding:11073Type.version Short description Version of the system - if relevant Definition The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured. and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged. Comments Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE.7 rim:* ./codeSystemVersion orim: fhir:Coding.version rdfs:subPropertyOf dt:CDCoding.codeSystemVersion
code	Σ	1..1	code	There are no (further) constraints on this element Element id Observation.code.coding:11073Type.code Short description Symbol in syntax defined by the system Definition A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination). Requirements Need to refer to a particular code in the system. Comments Note that FHIR strings may not exceed 1MB in size Data type code Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE.1 rim:* ./code orim: fhir:Coding.code rdfs:subPropertyOf dt:CDCoding.code
display	Σ	0..1	string	There are no (further) constraints on this element Element id Observation.code.coding:11073Type.display Short description Representation defined by the system Definition A representation of the meaning of the code in the system, following the rules of the system. Requirements Need to be able to carry a human-readable meaning of the code for readers that do not know the system. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE.2 - but note this is not well followed rim:* CV.displayName orim: fhir:Coding.display rdfs:subPropertyOf dt:CDCoding.displayName
userSelected	Σ	0..1	boolean	There are no (further) constraints on this element Element id Observation.code.coding:11073Type.userSelected Short description If this coding was chosen directly by the user Definition Indicates that this coding was chosen by a user directly - i.e. off a pick list of available items (codes or displays). Requirements This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing. Comments Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely. Data type boolean Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: Sometimes implied by being first rim: CD.codingRationale orim: fhir:Coding.userSelected fhir:mapsTo dt:CDCoding.codingRationale. fhir:Coding.userSelected fhir:hasMap fhir:Coding.userSelected.map. fhir:Coding.userSelected.map a fhir:Map; fhir:target dt:CDCoding.codingRationale. fhir:Coding.userSelected\#true a [ fhir:source "true"; fhir:target dt:CDCoding.codingRationale\#O ]
LoincCoding	Σ	0..1	Coding	Element id Observation.code.coding:LoincCoding Short description Code defined by a terminology system Definition A reference to a code defined by a terminology system. Requirements Allows for translations and alternate encodings within a code system. Also supports communication of the same instance to systems requiring different encodings. Comments If the measurement is one of the magic vital signs, the Magic LOINC code for that vital sign as specified by FHIR appears here. When it occurs It shall be second after the MDC code. Data type Coding Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE subset one of the sets of component 1-3 or 4-6 rim: CV orim: fhir:Coding rdfs:subClassOf dt:CDCoding v2: CE.1-8, CE.10-22 rim: union(., ./translation) orim: fhir:CodeableConcept.coding rdfs:subPropertyOf dt:CD.coding
id		0..1	string	There are no (further) constraints on this element Element id Observation.code.coding:LoincCoding.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.code.coding:LoincCoding.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
system	Σ	1..1	uriFixed Value	Element id Observation.code.coding:LoincCoding.system Short description Identity of the terminology system Definition The identification of the code system that defines the meaning of the symbol in the code. Requirements Need to be unambiguous about the source of the definition of the symbol. Comments The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should de-reference to some definition that establish the system clearly and unambiguously. Data type uri Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Fixed value http://loinc.org Mappings rim: n/a v2: CE.3 rim:* ./codeSystem orim: fhir:Coding.system rdfs:subPropertyOf dt:CDCoding.codeSystem
version	Σ	0..1	string	There are no (further) constraints on this element Element id Observation.code.coding:LoincCoding.version Short description Version of the system - if relevant Definition The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured. and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged. Comments Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE.7 rim:* ./codeSystemVersion orim: fhir:Coding.version rdfs:subPropertyOf dt:CDCoding.codeSystemVersion
code	Σ	1..1	code	Element id Observation.code.coding:LoincCoding.code Short description Symbol in syntax defined by the system Definition A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination). Requirements Need to refer to a particular code in the system. Comments Required if the measurement is a vital sign Data type code Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE.1 rim:* ./code orim: fhir:Coding.code rdfs:subPropertyOf dt:CDCoding.code
display	Σ	0..1	string	There are no (further) constraints on this element Element id Observation.code.coding:LoincCoding.display Short description Representation defined by the system Definition A representation of the meaning of the code in the system, following the rules of the system. Requirements Need to be able to carry a human-readable meaning of the code for readers that do not know the system. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE.2 - but note this is not well followed rim:* CV.displayName orim: fhir:Coding.display rdfs:subPropertyOf dt:CDCoding.displayName
userSelected	Σ	0..1	boolean	There are no (further) constraints on this element Element id Observation.code.coding:LoincCoding.userSelected Short description If this coding was chosen directly by the user Definition Indicates that this coding was chosen by a user directly - i.e. off a pick list of available items (codes or displays). Requirements This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing. Comments Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely. Data type boolean Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: Sometimes implied by being first rim: CD.codingRationale orim: fhir:Coding.userSelected fhir:mapsTo dt:CDCoding.codingRationale. fhir:Coding.userSelected fhir:hasMap fhir:Coding.userSelected.map. fhir:Coding.userSelected.map a fhir:Map; fhir:target dt:CDCoding.codingRationale. fhir:Coding.userSelected\#true a [ fhir:source "true"; fhir:target dt:CDCoding.codingRationale\#O ]
text	Σ	0..1	string	There are no (further) constraints on this element Element id Observation.code.text Short description Plain text representation of the concept Definition A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user. Requirements 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. Comments Very often the text is the same as a displayName of one of the codings. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE.9. But note many systems use CE.2 for this rim: ./originalText[mediaType/code="text/plain"]/data orim: fhir:CodeableConcept.text rdfs:subPropertyOf dt:CD.originalText
subject	Σ I	1..1	Reference(http://hl7.org/fhir/StructureDefinition/Patient \| http://hl7.org/fhir/StructureDefinition/Group \| http://hl7.org/fhir/StructureDefinition/Device \| http://hl7.org/fhir/StructureDefinition/Location)	There are no (further) constraints on this element Element id Observation.subject Short description Who and/or what this is about Definition The patient, or group of patients, location, or device whose characteristics (direct or indirect) are described by the observation and into whose record the observation is placed. Comments: Indirect characteristics may be those of a specimen, fetus, donor, other observer (for example a relative or EMT), or any observation made about the subject. Requirements Observations have no value if you don't know who or what they're about. Comments One would expect this element to be a cardinality of 1..1. The only circumstance in which the subject can be missing is when the observation is made by a device that does not know the patient. In this case, the observation SHALL be matched to a patient through some context/channel matching technique, and at this point, the observation should be updated. If the target of the observation is different than the subject, the general extension observation-focal-subject. may be used. However, the distinction between the patient's own value for an observation versus that of the fetus, or the donor or blood product unit, etc., are often specified in the observation code. Data type Reference(http://hl7.org/fhir/StructureDefinition/Patient \| http://hl7.org/fhir/StructureDefinition/Group \| http://hl7.org/fhir/StructureDefinition/Device \| http://hl7.org/fhir/StructureDefinition/Location) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ref-1: SHALL have a contained resource if a local reference is provided `reference.startsWith('#').not() or (reference.substring(1).trace('url') in %resource.contained.id.trace('ids'))` Mappings rim: n/a rim: The target of a resource reference is a RIM entry point (Act, Role, or Entity) workflow: Event.subject v2: PID-3 rim: participation[typeCode=SBJ] w5: who.focus
id		0..1	string	There are no (further) constraints on this element Element id Observation.subject.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.subject.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
reference	Σ I	1..1	string	There are no (further) constraints on this element Element id Observation.subject.reference Short description Literal reference, Relative, internal or absolute URL Definition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Comments 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. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a rim: N/A
identifier	Σ	0..1	Identifier	There are no (further) constraints on this element Element id Observation.subject.identifier Short description Logical reference, when literal reference is not known Definition An identifier for the other resource. This is used when there is no way to reference the other resource directly, either because the entity 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. Comments 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. Data type Identifier Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CX / EI (occasionally, more often EI maps to a resource id or a URL) rim: II - see see identifier pattern at http://wiki.hl7.org/index.php?title=Common_Design_Patterns#Identifier_Pattern for relevant discussion. The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs. Also maps to Role[classCode=IDENT] servd: Identifier rim: .identifier
display	Σ	0..1	string	There are no (further) constraints on this element Element id Observation.subject.display Short description Text alternative for the resource Definition Plain text narrative that identifies the resource in addition to the resource reference. Comments 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. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a rim: N/A
context	I	0..1	Reference(http://hl7.org/fhir/StructureDefinition/Encounter \| http://hl7.org/fhir/StructureDefinition/EpisodeOfCare)	There are no (further) constraints on this element Element id Observation.context Short description Healthcare event during which this observation is made Alternate names Encounter Definition The healthcare event (e.g. a patient and healthcare provider interaction) during which this observation is made. Requirements For some observations it may be important to know the link between an observation and a particular encounter. Comments This will typically be the encounter the event occurred within, but some events may be initiated prior to or after the official completion of an encounter or episode but still be tied to the context of the encounter or episode (e.g. pre-admission lab tests). Data type Reference(http://hl7.org/fhir/StructureDefinition/Encounter \| http://hl7.org/fhir/StructureDefinition/EpisodeOfCare) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ref-1: SHALL have a contained resource if a local reference is provided `reference.startsWith('#').not() or (reference.substring(1).trace('url') in %resource.contained.id.trace('ids'))` Mappings rim: n/a rim: The target of a resource reference is a RIM entry point (Act, Role, or Entity) workflow: Event.context v2: PV1 rim: inboundRelationship[typeCode=COMP].source[classCode=ENC, moodCode=EVN] w5: context
effectivePeriod	Σ	1..1	Period	Element id Observation.effective[x].effective[x]:effectivePeriod Short description Clinically relevant time/time-period for observation Alternate names Occurrence Definition The time period when there is a Measure-Active-Period attribute. The difference between the end and start fields is the value of the Measure-Active-Period. Requirements Knowing when an observation was deemed true is important to its relevance as well as determining trends. Comments At least a date should be present unless this observation is a historical report. Data type Period Sliced: Unordered, Open, by start(Exists) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a workflow: Event.occurrence[x] v2: OBX-14, and/or OBX-19 after v2.4 (depends on who observation made) rim: effectiveTime w5: when.done
(All Slices)				There are no (further) constraints on this element
id		0..1	string	There are no (further) constraints on this element Element id Observation.effective[x]:effectivePeriod.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.effective[x]:effectivePeriod.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
start	Σ I	1..1	dateTime	There are no (further) constraints on this element Element id Observation.effective[x].effective[x]:effectivePeriod.start Short description Starting time with inclusive boundary Definition The start of the period. The boundary is inclusive. Comments If the low element is missing, the meaning is that the low boundary is not known. Data type dateTime Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: DR.1 rim: ./low
end	Σ I	1..1	dateTime	Element id Observation.effective[x].effective[x]:effectivePeriod.end Short description End time with inclusive boundary, if not ongoing Definition The end of the period. It will be the value of the Measure-Active-Period plus the start time. Comments The high value includes any matching date/time. i.e. 2012-02-03T10:00:00 is in a period that has a end value of 2012-02-03. Meaning when missing If the end of the period is missing, it means that the period is ongoing Data type dateTime Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: DR.2 rim: ./high
dateTimeEffective	Σ	0..1	dateTime	Element id Observation.effective[x]:dateTimeEffective Short description Clinically relevant time/time-period for observation Alternate names Occurrence Definition The time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the "physiologically relevant time". This is usually either the time of the procedure or of specimen collection, but very often the source of the date/time is not known, only the date/time itself. Requirements Knowing when an observation was deemed true is important to its relevance as well as determining trends. Comments A date and time shall always be present. Data type dateTime Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a workflow: Event.occurrence[x] v2: OBX-14, and/or OBX-19 after v2.4 (depends on who observation made) rim: effectiveTime w5: when.done
issued	Σ	0..1	instant	There are no (further) constraints on this element Element id Observation.issued Short description Date/Time this was made available Definition The date and time this observation was made available to providers, typically after the results have been reviewed and verified. Comments Updated when the result is updated. Data type instant Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: OBR.22 (or MSH.7), or perhaps OBX-19 (depends on who observation made) rim: participation[typeCode=AUT].time w5: when.recorded
performer	Σ I	0..*	Reference(http://hl7.org/fhir/StructureDefinition/Practitioner \| http://hl7.org/fhir/StructureDefinition/Organization \| http://hl7.org/fhir/StructureDefinition/Patient \| http://hl7.org/fhir/StructureDefinition/RelatedPerson)	There are no (further) constraints on this element Element id Observation.performer Short description Who is responsible for the observation Definition Who was responsible for asserting the observed value as "true". Requirements May give a degree of confidence in the observation and also indicates where follow-up questions should be directed. Comments References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository. Data type Reference(http://hl7.org/fhir/StructureDefinition/Practitioner \| http://hl7.org/fhir/StructureDefinition/Organization \| http://hl7.org/fhir/StructureDefinition/Patient \| http://hl7.org/fhir/StructureDefinition/RelatedPerson) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ref-1: SHALL have a contained resource if a local reference is provided `reference.startsWith('#').not() or (reference.substring(1).trace('url') in %resource.contained.id.trace('ids'))` Mappings rim: n/a rim: The target of a resource reference is a RIM entry point (Act, Role, or Entity) workflow: Event.performer v2: OBX.15 / (Practitioner) OBX-16, PRT-5:PRT-4='RO' / (Device) OBX-18 , PRT-10:PRT-4='EQUIP' / (Organization) OBX-23, PRT-8:PRT-4='PO' rim: participation[typeCode=PRF] w5: who.actor
value[x]	Σ I	0..1		There are no (further) constraints on this element Element id Observation.value[x] Short description Actual result Definition The information determined as a result of making the observation, if the information has a simple value. Requirements An observation exists to have a value, though it may not if it is in error, or if it represents a group of observations. Comments Normally, an observation will have either a single value or a set of related observations. A few observations (e.g. Apgar score) may have both a value and related observations (for an Apgar score, the observations from which the measure is derived). If a value is present, the datatype for this element should be determined by Observation.code. This element has a variable name depending on the type as follows: valueQuantity, valueCodeableConcept, valueString, valueBoolean, valueRange, valueRatio, valueSampledData, valueAttachment, valueTime, valueDateTime, or valuePeriod. (The name format is "'value' + the type name" with a capital on the first letter of the type). If the data element is usually coded or if the type associated with the Observation.value defines a coded value, use CodeableConcept instead of string datatype even if the value is uncoded text. A value set is bound to the ValueCodeableConcept element. For further discussion and examples see the notes section below. Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a workflow: Event.notDone, Event.notDoneReason (maps to valeu[x] or dataAbsentReason) sct-concept: < 441742003 \|Evaluation finding\| v2: OBX.2, OBX.5, OBX.6 rim: value sct-attr: 363714003 \|Interprets\|
valueQuantity			Quantity	There are no (further) constraints on this element Data type Quantity
valueCodeableConcept			CodeableConcept	There are no (further) constraints on this element Data type CodeableConcept
valueString			string	There are no (further) constraints on this element Data type string
valueBoolean			boolean	There are no (further) constraints on this element Data type boolean
valueRange			Range	There are no (further) constraints on this element Data type Range
valueRatio			Ratio	There are no (further) constraints on this element Data type Ratio
valueSampledData			SampledData	There are no (further) constraints on this element Data type SampledData
valueAttachment			Attachment	There are no (further) constraints on this element Data type Attachment
valueTime			time	There are no (further) constraints on this element Data type time
valueDateTime			dateTime	There are no (further) constraints on this element Data type dateTime
valuePeriod			Period	There are no (further) constraints on this element Data type Period
dataAbsentReason	I	0..1	CodeableConceptBinding	There are no (further) constraints on this element Element id Observation.dataAbsentReason Short description Why the result is missing Definition Provides a reason why the expected value in the element Observation.value[x] is missing. Requirements For many results it is necessary to handle exceptional values in measurements. Comments Null or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "specimen unsatisfactory". The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Note that an observation may only be reported if there are values to report. For example differential cell counts values may be reported only when > 0. Because of these options, use-case agreements are required to interpret general observations for null or exceptional values. Data type CodeableConcept Binding Codes specifying why the result (Observation.value[x]) is missing. ?? (extensible) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE rim: CD orim: fhir:CodeableConcept rdfs:subClassOf dt:CD workflow: Event.notDone, Event.notDoneReason (maps to valeu[x] or dataAbsentReason) v2: N/A rim: value.nullFlavor
interpretation		0..1	CodeableConceptBinding	There are no (further) constraints on this element Element id Observation.interpretation Short description High, low, normal, etc. Alternate names Abnormal Flag Definition The assessment made based on the result of the observation. Intended as a simple compact code often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result. Otherwise known as abnormal flag. Requirements For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result. Comments Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination. Data type CodeableConcept Binding Codes identifying interpretations of observations. ?? (extensible) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE rim: CD orim: fhir:CodeableConcept rdfs:subClassOf dt:CD sct-concept: < 260245000 \|Findings values\| v2: OBX-8 rim: interpretationCode sct-attr: 363713009 \|Has interpretation\|
comment		0..1	string	There are no (further) constraints on this element Element id Observation.comment Short description Comments about result Definition May include statements about significant, unexpected or unreliable values, or information about the source of the value where this may be relevant to the interpretation of the result. Requirements Need to be able to provide free text additional information. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a workflow: Event.note v2: NTE.3 (partner NTE to OBX, or sometimes another (child?) OBX) rim: subjectOf.observationEvent[code="annotation"].value
bodySite		0..1	CodeableConcept	There are no (further) constraints on this element Element id Observation.bodySite Short description Observed body part Definition Indicates the site on the subject's body where the observation was made (i.e. the target site). Comments Only used if not implicit in code found in Observation.code. In many systems, this may be represented as a related observation instead of an inline component. If the use case requires BodySite to be handled as a separate resource (e.g. to identify and track separately) then use the standard extension body-site-instance. Data type CodeableConcept Binding Codes describing anatomical locations. May include laterality. ?? (example) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE rim: CD orim: fhir:CodeableConcept rdfs:subClassOf dt:CD sct-concept: < 123037004 \|Body structure\| v2: OBX-20 rim: targetSiteCode sct-attr: 718497002 \|Inherent location\|
method		0..1	CodeableConcept	There are no (further) constraints on this element Element id Observation.method Short description How it was done Definition Indicates the mechanism used to perform the observation. Requirements In some cases, method can impact results and is thus used for determining whether results can be compared or determining significance of results. Comments Only used if not implicit in code for Observation.code. Data type CodeableConcept Binding Methods for simple observations. ?? (example) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE rim: CD orim: fhir:CodeableConcept rdfs:subClassOf dt:CD v2: OBX-17 rim: methodCode
specimen	I	0..1	Reference(http://hl7.org/fhir/StructureDefinition/Specimen)	There are no (further) constraints on this element Element id Observation.specimen Short description Specimen used for this observation Definition The specimen that was used when this observation was made. Comments Should only be used if not implicit in code found in `Observation.code`. Observations are not made on specimens themselves; they are made on a subject, but in many cases by the means of a specimen. Note that although specimens are often involved, they are not always tracked and reported explicitly. Also note that observation resources may be used in contexts that track the specimen explicitly (e.g. Diagnostic Report). Data type Reference(http://hl7.org/fhir/StructureDefinition/Specimen) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ref-1: SHALL have a contained resource if a local reference is provided `reference.startsWith('#').not() or (reference.substring(1).trace('url') in %resource.contained.id.trace('ids'))` Mappings rim: n/a rim: The target of a resource reference is a RIM entry point (Act, Role, or Entity) sct-concept: < 123038009 \|Specimen\| v2: SPM segment rim: participation[typeCode=SPC].specimen sct-attr: 704319004 \|Inherent in\|
device	I	1..1	Reference(http://hl7.org/fhir/StructureDefinition/Device \| http://hl7.org/fhir/StructureDefinition/DeviceMetric)	Element id Observation.device Short description (Measurement) Device Definition The device used to generate the observation data. Comments This field will reference the DeviceComponent when the updated fixes are in place. In the meantime it will reference the DeviceMetric Data type Reference(http://hl7.org/fhir/StructureDefinition/Device \| http://hl7.org/fhir/StructureDefinition/DeviceMetric) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ref-1: SHALL have a contained resource if a local reference is provided `reference.startsWith('#').not() or (reference.substring(1).trace('url') in %resource.contained.id.trace('ids'))` Mappings rim: n/a rim: The target of a resource reference is a RIM entry point (Act, Role, or Entity) sct-concept: < 49062001 \|Device\| v2: OBX-17 / PRT -10 rim: participation[typeCode=DEV] sct-attr: 424226004 \|Using device\|
id		0..1	string	There are no (further) constraints on this element Element id Observation.device.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.device.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
reference	Σ I	1..1	string	Element id Observation.device.reference Short description Reference to the device responsible for the measurement Definition Reference to the device-related resources that describe the sensor device taking the measurement and the gateway that handled it. This element will point to a DeviceComponent resource following the Phd Parent DeviceComponent Profile. Comments This reference points to the DeviceComponent resource containing information about the sensor device that took the measurement and gateway (if any) that handled it. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a rim: N/A
identifier	Σ	0..1	Identifier	There are no (further) constraints on this element Element id Observation.device.identifier Short description Logical reference, when literal reference is not known Definition An identifier for the other resource. This is used when there is no way to reference the other resource directly, either because the entity 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. Comments 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. Data type Identifier Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CX / EI (occasionally, more often EI maps to a resource id or a URL) rim: II - see see identifier pattern at http://wiki.hl7.org/index.php?title=Common_Design_Patterns#Identifier_Pattern for relevant discussion. The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs. Also maps to Role[classCode=IDENT] servd: Identifier rim: .identifier
display	Σ	0..1	string	There are no (further) constraints on this element Element id Observation.device.display Short description Text alternative for the resource Definition Plain text narrative that identifies the resource in addition to the resource reference. Comments 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. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a rim: N/A
referenceRange	I	0..*	BackboneElement	There are no (further) constraints on this element Element id Observation.referenceRange Short description Provides guide for interpretation Definition Guidance on how to interpret the value by comparison to a normal or recommended range. Requirements Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts. Comments Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this may not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties. Data type BackboneElement Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` obs-3: Must have at least a low or a high or text `low.exists() or high.exists() or text.exists()` Mappings rim: n/a v2: OBX.7 rim: outboundRelationship[typeCode=REFV]/target[classCode=OBS, moodCode=EVN]
id		0..1	string	There are no (further) constraints on this element Element id Observation.referenceRange.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.referenceRange.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
modifierExtension	Σ ?! I	0..*	Extension	There are no (further) constraints on this element Element id Observation.referenceRange.modifierExtension Short description Extensions that cannot be ignored Alternate names extensions, user content, modifiers Definition May be used to represent additional information that is not part of the basic definition of the element, and that modifies the understanding of the element that contains it. Usually modifier elements provide negation or qualification. In order 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. Comments 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. Data type Extension Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
low	I	0..1	http://hl7.org/fhir/StructureDefinition/SimpleQuantity	There are no (further) constraints on this element Element id Observation.referenceRange.low Short description Low Range, if relevant Definition The value of the low bound of the reference range. The low bound of the reference range endpoint is inclusive of the value (e.g. reference range is >=5 - <=9). If the low bound is omitted, it is assumed to be meaningless (e.g. reference range is <=2.3). Comments The context of use may frequently define what kind of quantity this is and therefore what kind of units can be used. The context of use may also restrict the values for the comparator. Data type http://hl7.org/fhir/StructureDefinition/SimpleQuantity Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` qty-3: If a code for the unit is present, the system SHALL also be present `code.empty() or system.exists()` sqty-1: The comparator is not used on a SimpleQuantity `comparator.empty()` Mappings rim: n/a v2: SN (see also Range) or CQ rim: PQ, IVL<PQ>, MO, CO, depending on the values v2: OBX-7 rim: value:IVL_PQ.low
high	I	0..1	http://hl7.org/fhir/StructureDefinition/SimpleQuantity	There are no (further) constraints on this element Element id Observation.referenceRange.high Short description High Range, if relevant Definition The value of the high bound of the reference range. The high bound of the reference range endpoint is inclusive of the value (e.g. reference range is >=5 - <=9). If the high bound is omitted, it is assumed to be meaningless (e.g. reference range is >= 2.3). Comments The context of use may frequently define what kind of quantity this is and therefore what kind of units can be used. The context of use may also restrict the values for the comparator. Data type http://hl7.org/fhir/StructureDefinition/SimpleQuantity Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` qty-3: If a code for the unit is present, the system SHALL also be present `code.empty() or system.exists()` sqty-1: The comparator is not used on a SimpleQuantity `comparator.empty()` Mappings rim: n/a v2: SN (see also Range) or CQ rim: PQ, IVL<PQ>, MO, CO, depending on the values v2: OBX-7 rim: value:IVL_PQ.high
type		0..1	CodeableConceptBinding	There are no (further) constraints on this element Element id Observation.referenceRange.type Short description Reference range qualifier Definition Codes to indicate the what part of the targeted reference population it applies to. For example, the normal or therapeutic range. Requirements Need to be able to say what kind of reference range this is - normal, recommended, therapeutic, etc, - for proper interpretation. Comments This SHOULD be populated if there is more than one range. If this element is not present then the normal range is assumed. Data type CodeableConcept Binding Code for the meaning of a reference range. ?? (extensible) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE rim: CD orim: fhir:CodeableConcept rdfs:subClassOf dt:CD sct-concept: < 260245000 \|Findings values\| OR < 365860008 \|General clinical state finding\| OR < 250171008 \|Clinical history or observation findings\| OR < 415229000 \|Racial group\| OR < 365400002 \|Finding of puberty stage\| OR < 443938003 \|Procedure carried out on subject\| v2: OBX-10 rim: interpretationCode
appliesTo		0..*	CodeableConcept	There are no (further) constraints on this element Element id Observation.referenceRange.appliesTo Short description Reference range population Definition Codes to indicate the target population this reference range applies to. For example, a reference range may be based on the normal population or a particular sex or race. Requirements Need to be able to identify the target population for proper interpretation. Comments This SHOULD be populated if there is more than one range. If this element is not present then the normal population is assumed. Data type CodeableConcept Binding Codes identifying the population the reference range applies to. ?? (example) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE rim: CD orim: fhir:CodeableConcept rdfs:subClassOf dt:CD sct-concept: < 260245000 \|Findings values\| OR < 365860008 \|General clinical state finding\| OR < 250171008 \|Clinical history or observation findings\| OR < 415229000 \|Racial group\| OR < 365400002 \|Finding of puberty stage\| OR < 443938003 \|Procedure carried out on subject\| v2: OBX-10 rim: interpretationCode
age	I	0..1	Range	There are no (further) constraints on this element Element id Observation.referenceRange.age Short description Applicable age range, if relevant Definition The age at which this reference range is applicable. This is a neonatal age (e.g. number of weeks at term) if the meaning says so. Requirements Some analytes vary greatly over age. Comments The stated low and high value are assumed to have arbitrarily high precision when it comes to determining which values are in the range. I.e. 1.99 is not in the range 2 -> 3. Data type Range Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` rng-2: If present, low SHALL have a lower value than high `low.empty() or high.empty() or (low <= high)` Mappings rim: n/a v2: NR and also possibly SN (but see also quantity) rim: IVL<QTY[not(type="TS")]> [lowClosed="true" and highClosed="true"]or URG<QTY[not(type="TS")]> rim: outboundRelationship[typeCode=PRCN].targetObservationCriterion[code="age"].value
text		0..1	string	There are no (further) constraints on this element Element id Observation.referenceRange.text Short description Text based reference range in an observation Definition Text based reference range in an observation which may be used when a quantitative range is not appropriate for an observation. An example would be a reference value of "Negative" or a list or table of 'normals'. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: OBX-7 rim: value:ST
related	Σ	0..*	BackboneElement	Element id Observation.related Short description Resource related to this observation Definition A reference to another resource (usually another Observation) whose relationship is defined by the relationship type code. Requirements Normally, an observation will have either a value or a set of related observations. A few observations (e.g. Apgar score) may have both a value and a set of related observations or sometimes a QuestionnaireResponse from which the measure is derived. Comments For a discussion on the ways Observations can assembled in groups together see Notes below. Data type BackboneElement Sliced: Ordered, Open, by target.reference(Value) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: Relationships established by OBX-4 usage rim: outBoundRelationship
(All Slices)				There are no (further) constraints on this element
id		0..1	string	There are no (further) constraints on this element Element id Observation.related.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.related.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
modifierExtension	Σ ?! I	0..*	Extension	There are no (further) constraints on this element Element id Observation.related.modifierExtension Short description Extensions that cannot be ignored Alternate names extensions, user content, modifiers Definition May be used to represent additional information that is not part of the basic definition of the element, and that modifies the understanding of the element that contains it. Usually modifier elements provide negation or qualification. In order 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. Comments 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. Data type Extension Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
type		0..1	codeBinding	There are no (further) constraints on this element Element id Observation.related.type Short description has-member \| derived-from \| sequel-to \| replaces \| qualified-by \| interfered-by Definition A code specifying the kind of relationship that exists with the target resource. Requirements A relationship type SHOULD be provided. Comments The "derived-from" type is the only logical choice when referencing the QuestionnaireAnswer resource. Data type code Binding Codes specifying how two observations are related. ?? (required) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: N/A rim: .typeCode
target	I	1..1	Reference(http://hl7.org/fhir/StructureDefinition/Observation \| http://hl7.org/fhir/StructureDefinition/QuestionnaireResponse \| http://hl7.org/fhir/StructureDefinition/Sequence)	There are no (further) constraints on this element Element id Observation.related.target Short description Resource that is related to this one Definition A reference to the observation or QuestionnaireResponse resource that is related to this observation. Comments References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository. Data type Reference(http://hl7.org/fhir/StructureDefinition/Observation \| http://hl7.org/fhir/StructureDefinition/QuestionnaireResponse \| http://hl7.org/fhir/StructureDefinition/Sequence) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ref-1: SHALL have a contained resource if a local reference is provided `reference.startsWith('#').not() or (reference.substring(1).trace('url') in %resource.contained.id.trace('ids'))` Mappings rim: n/a rim: The target of a resource reference is a RIM entry point (Act, Role, or Entity) rim: .targetObservation
coincidentTimeStampRelated	Σ	0..*	BackboneElement	Element id Observation.related:coincidentTimeStampRelated Short description Pointer to the Coincident Time Stamp Definition A reference to the Coincident Time Stamp observation. The Coincident Time Stamp indicates how the time stamps from the PHD are corrected, if at all. Requirements This Observation allows one to re-create the original time stamp generated by the PHD should it have been modified by the PHG. Comments This reference shall be present if the PHD reports a time stamp. The reference shall point to the Coincident Time Stamp observation. The Coincident Time Stamp Observation provides an audit of the time stamp. Whether or not the gateway corrected the time stamp can be determined from the elements in this Observation. If the timestamps were corrected, the elements of the Observation can be used to obtain the actual time stamps reported by the PHD. There is no reference to a Coincident Time Stamp Observation when the PHD does not report a time stamp. Data type BackboneElement Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: Relationships established by OBX-4 usage rim: outBoundRelationship
id		0..1	string	There are no (further) constraints on this element Element id Observation.related:coincidentTimeStampRelated.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.related:coincidentTimeStampRelated.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
modifierExtension	Σ ?! I	0..*	Extension	There are no (further) constraints on this element Element id Observation.related:coincidentTimeStampRelated.modifierExtension Short description Extensions that cannot be ignored Alternate names extensions, user content, modifiers Definition May be used to represent additional information that is not part of the basic definition of the element, and that modifies the understanding of the element that contains it. Usually modifier elements provide negation or qualification. In order 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. Comments 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. Data type Extension Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
type		0..1	codeBinding	There are no (further) constraints on this element Element id Observation.related:coincidentTimeStampRelated.type Short description has-member \| derived-from \| sequel-to \| replaces \| qualified-by \| interfered-by Definition A code specifying the kind of relationship that exists with the target resource. Requirements A relationship type SHOULD be provided. Comments The "derived-from" type is the only logical choice when referencing the QuestionnaireAnswer resource. Data type code Binding Codes specifying how two observations are related. ?? (required) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: N/A rim: .typeCode
target	I	1..1	Reference(http://hl7.org/fhir/StructureDefinition/Observation \| http://hl7.org/fhir/StructureDefinition/QuestionnaireResponse \| http://hl7.org/fhir/StructureDefinition/Sequence)	There are no (further) constraints on this element Element id Observation.related:coincidentTimeStampRelated.target Short description Resource that is related to this one Definition A reference to the observation or QuestionnaireResponse resource that is related to this observation. Comments References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository. Data type Reference(http://hl7.org/fhir/StructureDefinition/Observation \| http://hl7.org/fhir/StructureDefinition/QuestionnaireResponse \| http://hl7.org/fhir/StructureDefinition/Sequence) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ref-1: SHALL have a contained resource if a local reference is provided `reference.startsWith('#').not() or (reference.substring(1).trace('url') in %resource.contained.id.trace('ids'))` Mappings rim: n/a rim: The target of a resource reference is a RIM entry point (Act, Role, or Entity) rim: .targetObservation
id		0..1	string	There are no (further) constraints on this element Element id Observation.related:coincidentTimeStampRelated.target.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.related:coincidentTimeStampRelated.target.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
reference	Σ I	1..1	string	There are no (further) constraints on this element Element id Observation.related:coincidentTimeStampRelated.target.reference Short description Literal reference, Relative, internal or absolute URL Definition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Comments 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. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a rim: N/A
identifier	Σ	0..1	Identifier	There are no (further) constraints on this element Element id Observation.related:coincidentTimeStampRelated.target.identifier Short description Logical reference, when literal reference is not known Definition An identifier for the other resource. This is used when there is no way to reference the other resource directly, either because the entity 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. Comments 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. Data type Identifier Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CX / EI (occasionally, more often EI maps to a resource id or a URL) rim: II - see see identifier pattern at http://wiki.hl7.org/index.php?title=Common_Design_Patterns#Identifier_Pattern for relevant discussion. The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs. Also maps to Role[classCode=IDENT] servd: Identifier rim: .identifier
display	Σ	0..1	string	There are no (further) constraints on this element Element id Observation.related:coincidentTimeStampRelated.target.display Short description Text alternative for the resource Definition Plain text narrative that identifies the resource in addition to the resource reference. Comments 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. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a rim: N/A
SourceHandleReferenceRelated	Σ	0..*	BackboneElement	Element id Observation.related:SourceHandleReferenceRelated Short description Resource related to this observation Definition A reference to another resource (usually another Observation) whose relationship is defined by the relationship type code. Requirements Points to a measurement that this measurement is related to or dependent upon, for example a BMI which is calculated from a weight and height measurement or a heart rate taken during a running session. Comments A measurement may have one or more source handle references which point to measurements that this measurement is related to in some way. When one of these attributes are present in the measurement, these values point to other measurements. In this case these measurements will be previously generated Observation resources which are then referenced here. Note that the previously received measurement must be received in the same connection as the current measurement. The application does not need to keep record of all measurements from the given device! Data type BackboneElement Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: Relationships established by OBX-4 usage rim: outBoundRelationship
id		0..1	string	There are no (further) constraints on this element Element id Observation.related:SourceHandleReferenceRelated.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.related:SourceHandleReferenceRelated.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
modifierExtension	Σ ?! I	0..*	Extension	There are no (further) constraints on this element Element id Observation.related:SourceHandleReferenceRelated.modifierExtension Short description Extensions that cannot be ignored Alternate names extensions, user content, modifiers Definition May be used to represent additional information that is not part of the basic definition of the element, and that modifies the understanding of the element that contains it. Usually modifier elements provide negation or qualification. In order 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. Comments 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. Data type Extension Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
type		0..1	codeBinding	There are no (further) constraints on this element Element id Observation.related:SourceHandleReferenceRelated.type Short description has-member \| derived-from \| sequel-to \| replaces \| qualified-by \| interfered-by Definition A code specifying the kind of relationship that exists with the target resource. Requirements A relationship type SHOULD be provided. Comments The "derived-from" type is the only logical choice when referencing the QuestionnaireAnswer resource. Data type code Binding Codes specifying how two observations are related. ?? (required) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: N/A rim: .typeCode
target	I	1..1	Reference(http://hl7.org/fhir/StructureDefinition/Observation \| http://hl7.org/fhir/StructureDefinition/QuestionnaireResponse \| http://hl7.org/fhir/StructureDefinition/Sequence)	There are no (further) constraints on this element Element id Observation.related:SourceHandleReferenceRelated.target Short description Resource that is related to this one Definition A reference to the observation or QuestionnaireResponse resource that is related to this observation. Comments References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository. Data type Reference(http://hl7.org/fhir/StructureDefinition/Observation \| http://hl7.org/fhir/StructureDefinition/QuestionnaireResponse \| http://hl7.org/fhir/StructureDefinition/Sequence) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ref-1: SHALL have a contained resource if a local reference is provided `reference.startsWith('#').not() or (reference.substring(1).trace('url') in %resource.contained.id.trace('ids'))` Mappings rim: n/a rim: The target of a resource reference is a RIM entry point (Act, Role, or Entity) rim: .targetObservation
id		0..1	string	There are no (further) constraints on this element Element id Observation.related:SourceHandleReferenceRelated.target.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.related:SourceHandleReferenceRelated.target.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
reference	Σ I	1..1	string	There are no (further) constraints on this element Element id Observation.related:SourceHandleReferenceRelated.target.reference Short description Literal reference, Relative, internal or absolute URL Definition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Comments 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. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a rim: N/A
identifier	Σ	0..1	Identifier	There are no (further) constraints on this element Element id Observation.related:SourceHandleReferenceRelated.target.identifier Short description Logical reference, when literal reference is not known Definition An identifier for the other resource. This is used when there is no way to reference the other resource directly, either because the entity 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. Comments 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. Data type Identifier Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CX / EI (occasionally, more often EI maps to a resource id or a URL) rim: II - see see identifier pattern at http://wiki.hl7.org/index.php?title=Common_Design_Patterns#Identifier_Pattern for relevant discussion. The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs. Also maps to Role[classCode=IDENT] servd: Identifier rim: .identifier
display	Σ	0..1	string	There are no (further) constraints on this element Element id Observation.related:SourceHandleReferenceRelated.target.display Short description Text alternative for the resource Definition Plain text narrative that identifies the resource in addition to the resource reference. Comments 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. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a rim: N/A
component	Σ	0..*	BackboneElement	Element id Observation.component Short description Component results Definition Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations. Requirements Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation. Comments For a discussion on the ways Observations can be assembled in groups together see Notes below. Data type BackboneElement Sliced: Unordered, Open, by code.coding.code(Value) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: containment by OBX-4? rim: outBoundRelationship[typeCode=COMP]
(All Slices)				There are no (further) constraints on this element
id		0..1	string	There are no (further) constraints on this element Element id Observation.component.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.component.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
modifierExtension	Σ ?! I	0..*	Extension	There are no (further) constraints on this element Element id Observation.component.modifierExtension Short description Extensions that cannot be ignored Alternate names extensions, user content, modifiers Definition May be used to represent additional information that is not part of the basic definition of the element, and that modifies the understanding of the element that contains it. Usually modifier elements provide negation or qualification. In order 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. Comments 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. Data type Extension Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
code	Σ	1..1	CodeableConcept	There are no (further) constraints on this element Element id Observation.component.code Short description Type of component observation (code / type) Definition Describes what was observed. Sometimes this is called the observation "code". Requirements Knowing what kind of observation is being made is essential to understanding the observation. Comments Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination. Data type CodeableConcept Binding Codes identifying names of simple observations. ?? (example) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE rim: CD orim: fhir:CodeableConcept rdfs:subClassOf dt:CD sct-concept: < 363787002 \|Observable entity\| OR < 386053000 \|Evaluation procedure\| v2: OBX-3 rim: code w5: what
value[x]	Σ	0..1		There are no (further) constraints on this element Element id Observation.component.value[x] Short description Actual component result Definition The information determined as a result of making the observation, if the information has a simple value. Requirements An observation exists to have a value, though it may not if it is in error, or if it represents a group of observations. Comments Normally, an observation will have either a single value or a set of related observations. A few observations (e.g. Apgar score) may have both a value and related observations (for an Apgar score, the observations from which the measure is derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For boolean values use valueCodeableConcept and select codes from http://hl7.org/fhir/ValueSet/v2-0136 (these "yes/no" concepts can be mapped to the display name "true/false" or other mutually exclusive terms that may be needed"). The element, Observation.value[x], has a variable name depending on the type as follows: valueQuantity, valueCodeableConcept, valueRatio, valueChoice, valuePeriod, valueSampleData, or valueString (the name format is "'value' + the type name" with a capital on the first letter of the type). Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a sct-concept: 363714003 \|Interprets\| < 441742003 \|Evaluation finding\| v2: OBX.2, OBX.5, OBX.6 rim: value sct-attr: 363714003 \|Interprets\|
valueQuantity			Quantity	There are no (further) constraints on this element Data type Quantity
valueCodeableConcept			CodeableConcept	There are no (further) constraints on this element Data type CodeableConcept
valueString			string	There are no (further) constraints on this element Data type string
valueRange			Range	There are no (further) constraints on this element Data type Range
valueRatio			Ratio	There are no (further) constraints on this element Data type Ratio
valueSampledData			SampledData	There are no (further) constraints on this element Data type SampledData
valueAttachment			Attachment	There are no (further) constraints on this element Data type Attachment
valueTime			time	There are no (further) constraints on this element Data type time
valueDateTime			dateTime	There are no (further) constraints on this element Data type dateTime
valuePeriod			Period	There are no (further) constraints on this element Data type Period
dataAbsentReason	I	0..1	CodeableConceptBinding	There are no (further) constraints on this element Element id Observation.component.dataAbsentReason Short description Why the component result is missing Definition Provides a reason why the expected value in the element Observation.value[x] is missing. Requirements For many results it is necessary to handle exceptional values in measurements. Comments "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done". The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values. Data type CodeableConcept Binding Codes specifying why the result (Observation.value[x]) is missing. ?? (extensible) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE rim: CD orim: fhir:CodeableConcept rdfs:subClassOf dt:CD v2: N/A rim: value.nullFlavor
interpretation		0..1	CodeableConceptBinding	There are no (further) constraints on this element Element id Observation.component.interpretation Short description High, low, normal, etc. Alternate names Abnormal Flag Definition The assessment made based on the result of the observation. Intended as a simple compact code often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result. Otherwise known as abnormal flag. Requirements For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result. Comments The component interpretation applies only to the individual component value. For an overall interpretation all components together use thes Observation.interpretation element. Data type CodeableConcept Binding Codes identifying interpretations of observations. ?? (extensible) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE rim: CD orim: fhir:CodeableConcept rdfs:subClassOf dt:CD sct-concept: < 260245000 \|Findings values\| v2: OBX-8 rim: interpretationCode sct-attr: 363713009 \|Has interpretation\|
referenceRange		0..*	see (referenceRange)	There are no (further) constraints on this element Element id Observation.component.referenceRange Short description Provides guide for interpretation of component result Definition Guidance on how to interpret the value by comparison to a normal or recommended range. Requirements Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts. Comments Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this may not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties. Mappings v2: OBX.7 rim: outboundRelationship[typeCode=REFV]/target[classCode=OBS, moodCode=EVN]
supplementalTypesComponent	Σ	0..*	BackboneElement	Element id Observation.component:supplementalTypesComponent Short description Component results Definition For each paritition:term code pair contained in the Supplemental-Types attribute, a separate supplementalTypesComponent element is generated. The component is not generated if the attribute is absent or empty. The component shall be generated otherwise. Requirements Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation. Comments A PHD may send a Supplemental-Types attribute as part of the measurement. This attribute consists of a set of MDC nomenclature codes as partition:term code pairs. Each pair is a code describing something additional about the measurement, such as MDC_MODALITY_SPOT in the pulse oximeter which indicates that the provided meausrement is a stable average. An MDC_MODALITY_FAST would indicate that a short averaging is used and the result reported regardless of stability. Data type BackboneElement Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: containment by OBX-4? rim: outBoundRelationship[typeCode=COMP]
id		0..1	string	There are no (further) constraints on this element Element id Observation.component:supplementalTypesComponent.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.component:supplementalTypesComponent.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
modifierExtension	Σ ?! I	0..*	Extension	There are no (further) constraints on this element Element id Observation.component:supplementalTypesComponent.modifierExtension Short description Extensions that cannot be ignored Alternate names extensions, user content, modifiers Definition May be used to represent additional information that is not part of the basic definition of the element, and that modifies the understanding of the element that contains it. Usually modifier elements provide negation or qualification. In order 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. Comments 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. Data type Extension Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
code	Σ	1..1	CodeableConcept	There are no (further) constraints on this element Element id Observation.component:supplementalTypesComponent.code Short description Type of component observation (code / type) Definition Describes what was observed. Sometimes this is called the observation "code". Requirements Knowing what kind of observation is being made is essential to understanding the observation. Comments Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination. Data type CodeableConcept Binding Codes identifying names of simple observations. ?? (example) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE rim: CD orim: fhir:CodeableConcept rdfs:subClassOf dt:CD sct-concept: < 363787002 \|Observable entity\| OR < 386053000 \|Evaluation procedure\| v2: OBX-3 rim: code w5: what
id		0..1	string	There are no (further) constraints on this element Element id Observation.component:supplementalTypesComponent.code.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.component:supplementalTypesComponent.code.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
coding	Σ	1..*	Coding	Element id Observation.component:supplementalTypesComponent.code.coding Short description Code defined by a terminology system Definition A reference to a code defined by a terminology system. Requirements Allows for translations and alternate encodings within a code system. Also supports communication of the same instance to systems requiring different encodings. Comments 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. Data type Coding Sliced: Ordered, Open, by system(Value) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE subset one of the sets of component 1-3 or 4-6 rim: CV orim: fhir:Coding rdfs:subClassOf dt:CDCoding v2: CE.1-8, CE.10-22 rim: union(., ./translation) orim: fhir:CodeableConcept.coding rdfs:subPropertyOf dt:CD.coding
11073Type	Σ	1..1	Coding	There are no (further) constraints on this element Element id Observation.component:supplementalTypesComponent.code.coding:11073Type Short description Code defined by a terminology system Definition A reference to a code defined by a terminology system. Requirements Allows for translations and alternate encodings within a code system. Also supports communication of the same instance to systems requiring different encodings. Comments 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. Data type Coding Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE subset one of the sets of component 1-3 or 4-6 rim: CV orim: fhir:Coding rdfs:subClassOf dt:CDCoding v2: CE.1-8, CE.10-22 rim: union(., ./translation) orim: fhir:CodeableConcept.coding rdfs:subPropertyOf dt:CD.coding
id		0..1	string	There are no (further) constraints on this element Element id Observation.component:supplementalTypesComponent.code.coding:11073Type.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.component:supplementalTypesComponent.code.coding:11073Type.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
system	Σ	1..1	uriFixed Value	Element id Observation.component:supplementalTypesComponent.code.coding:11073Type.system Short description Identity of the terminology system Definition The identification of the code system that defines the meaning of the symbol in the code. Requirements Need to be unambiguous about the source of the definition of the symbol. Comments The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should de-reference to some definition that establish the system clearly and unambiguously. Data type uri Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Fixed value urn:iso:std:iso:11073:10101 Mappings rim: n/a v2: CE.3 rim:* ./codeSystem orim: fhir:Coding.system rdfs:subPropertyOf dt:CDCoding.codeSystem
version	Σ	0..1	string	There are no (further) constraints on this element Element id Observation.component:supplementalTypesComponent.code.coding:11073Type.version Short description Version of the system - if relevant Definition The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured. and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged. Comments Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE.7 rim:* ./codeSystemVersion orim: fhir:Coding.version rdfs:subPropertyOf dt:CDCoding.codeSystemVersion
code	Σ	1..1	codeFixed Value	Element id Observation.component:supplementalTypesComponent.code.coding:11073Type.code Short description Symbol in syntax defined by the system Definition 68193 is the 32-bit nomenclature code indicating a 'Supplemental-Types' value Requirements Need to refer to a particular code in the system. Comments Note that FHIR strings may not exceed 1MB in size Data type code Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Fixed value 68193 Mappings rim: n/a v2: CE.1 rim:* ./code orim: fhir:Coding.code rdfs:subPropertyOf dt:CDCoding.code
display	Σ	0..1	string	Element id Observation.component:supplementalTypesComponent.code.coding:11073Type.display Short description Representation defined by the system Definition It is recommended to display at least the reference identifier for the Supplemental-Types which is MDC_ATTR_SUPPLEMENTAL_TYPES Requirements Need to be able to carry a human-readable meaning of the code for readers that do not know the system. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE.2 - but note this is not well followed rim:* CV.displayName orim: fhir:Coding.display rdfs:subPropertyOf dt:CDCoding.displayName
userSelected	Σ	0..1	boolean	There are no (further) constraints on this element Element id Observation.component:supplementalTypesComponent.code.coding:11073Type.userSelected Short description If this coding was chosen directly by the user Definition Indicates that this coding was chosen by a user directly - i.e. off a pick list of available items (codes or displays). Requirements This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing. Comments Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely. Data type boolean Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: Sometimes implied by being first rim: CD.codingRationale orim: fhir:Coding.userSelected fhir:mapsTo dt:CDCoding.codingRationale. fhir:Coding.userSelected fhir:hasMap fhir:Coding.userSelected.map. fhir:Coding.userSelected.map a fhir:Map; fhir:target dt:CDCoding.codingRationale. fhir:Coding.userSelected\#true a [ fhir:source "true"; fhir:target dt:CDCoding.codingRationale\#O ]
text	Σ	0..1	string	There are no (further) constraints on this element Element id Observation.component:supplementalTypesComponent.code.text Short description Plain text representation of the concept Definition A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user. Requirements 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. Comments Very often the text is the same as a displayName of one of the codings. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE.9. But note many systems use CE.2 for this rim: ./originalText[mediaType/code="text/plain"]/data orim: fhir:CodeableConcept.text rdfs:subPropertyOf dt:CD.originalText
valueCodeableConcept	Σ	1..1	CodeableConcept	Element id Observation.component:supplementalTypesComponent.value[x]:valueCodeableConcept Short description Actual component result Definition The information determined as a result of making the observation, if the information is a code. Requirements An observation exists to have a value, though it may not if it is in error, or if it represents a group of observations. Comments Normally, an observation will have either a single value or a set of related observations. A few observations (e.g. Apgar score) may have both a value and related observations (for an Apgar score, the observations from which the measure is derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For boolean values use valueCodeableConcept and select codes from http://hl7.org/fhir/ValueSet/v2-0136 (these "yes/no" concepts can be mapped to the display name "true/false" or other mutually exclusive terms that may be needed"). The element, Observation.value[x], has a variable name depending on the type as follows: valueQuantity, valueCodeableConcept, valueRatio, valueChoice, valuePeriod, valueSampleData, or valueString (the name format is "'value' + the type name" with a capital on the first letter of the type). Data type CodeableConcept Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a sct-concept: 363714003 \|Interprets\| < 441742003 \|Evaluation finding\| v2: OBX.2, OBX.5, OBX.6 rim: value sct-attr: 363714003 \|Interprets\|
id		0..1	string	There are no (further) constraints on this element Element id Observation.component:supplementalTypesComponent.value[x]:valueCodeableConcept.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.component:supplementalTypesComponent.value[x]:valueCodeableConcept.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
coding	Σ	1..*	Coding	Element id Observation.component:supplementalTypesComponent.value[x]:valueCodeableConcept.coding Short description Code defined by a terminology system Definition A reference to a code defined by a terminology system. Requirements Allows for translations and alternate encodings within a code system. Also supports communication of the same instance to systems requiring different encodings. Comments 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. Data type Coding Sliced: Ordered, Open, by system(Value) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE subset one of the sets of component 1-3 or 4-6 rim: CV orim: fhir:Coding rdfs:subClassOf dt:CDCoding v2: CE.1-8, CE.10-22 rim: union(., ./translation) orim: fhir:CodeableConcept.coding rdfs:subPropertyOf dt:CD.coding
11073Value	Σ	1..1	Coding	There are no (further) constraints on this element Element id Observation.component:supplementalTypesComponent.value[x]:valueCodeableConcept.coding:11073Value Short description Code defined by a terminology system Definition A reference to a code defined by a terminology system. Requirements Allows for translations and alternate encodings within a code system. Also supports communication of the same instance to systems requiring different encodings. Comments 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. Data type Coding Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE subset one of the sets of component 1-3 or 4-6 rim: CV orim: fhir:Coding rdfs:subClassOf dt:CDCoding v2: CE.1-8, CE.10-22 rim: union(., ./translation) orim: fhir:CodeableConcept.coding rdfs:subPropertyOf dt:CD.coding
id		0..1	string	There are no (further) constraints on this element Element id Observation.component:supplementalTypesComponent.value[x]:valueCodeableConcept.coding:11073Value.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.component:supplementalTypesComponent.value[x]:valueCodeableConcept.coding:11073Value.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
system	Σ	1..1	uriFixed Value	Element id Observation.component:supplementalTypesComponent.value[x]:valueCodeableConcept.coding:11073Value.system Short description Identity of the terminology system Definition The identification of the code system that defines the meaning of the symbol in the code. Requirements Need to be unambiguous about the source of the definition of the symbol. Comments The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should de-reference to some definition that establish the system clearly and unambiguously. Data type uri Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Fixed value urn:iso:std:iso:11073:10101 Mappings rim: n/a v2: CE.3 rim:* ./codeSystem orim: fhir:Coding.system rdfs:subPropertyOf dt:CDCoding.codeSystem
version	Σ	0..1	string	There are no (further) constraints on this element Element id Observation.component:supplementalTypesComponent.value[x]:valueCodeableConcept.coding:11073Value.version Short description Version of the system - if relevant Definition The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured. and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged. Comments Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE.7 rim:* ./codeSystemVersion orim: fhir:Coding.version rdfs:subPropertyOf dt:CDCoding.codeSystemVersion
code	Σ	1..1	code	Element id Observation.component:supplementalTypesComponent.value[x]:valueCodeableConcept.coding:11073Value.code Short description Symbol in syntax defined by the system Definition For the given Supplemental-Types entry the code here is given by: partition * 216 + term code Requirements Need to refer to a particular code in the system. Comments Note that FHIR strings may not exceed 1MB in size Data type code Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2:** CE.1 rim:* ./code orim: fhir:Coding.code rdfs:subPropertyOf dt:CDCoding.code
display	Σ	0..1	string	There are no (further) constraints on this element Element id Observation.component:supplementalTypesComponent.value[x]:valueCodeableConcept.coding:11073Value.display Short description Representation defined by the system Definition A representation of the meaning of the code in the system, following the rules of the system. Requirements Need to be able to carry a human-readable meaning of the code for readers that do not know the system. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE.2 - but note this is not well followed rim:* CV.displayName orim: fhir:Coding.display rdfs:subPropertyOf dt:CDCoding.displayName
userSelected	Σ	0..1	boolean	There are no (further) constraints on this element Element id Observation.component:supplementalTypesComponent.value[x]:valueCodeableConcept.coding:11073Value.userSelected Short description If this coding was chosen directly by the user Definition Indicates that this coding was chosen by a user directly - i.e. off a pick list of available items (codes or displays). Requirements This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing. Comments Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely. Data type boolean Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: Sometimes implied by being first rim: CD.codingRationale orim: fhir:Coding.userSelected fhir:mapsTo dt:CDCoding.codingRationale. fhir:Coding.userSelected fhir:hasMap fhir:Coding.userSelected.map. fhir:Coding.userSelected.map a fhir:Map; fhir:target dt:CDCoding.codingRationale. fhir:Coding.userSelected\#true a [ fhir:source "true"; fhir:target dt:CDCoding.codingRationale\#O ]
text	Σ	0..1	string	There are no (further) constraints on this element Element id Observation.component:supplementalTypesComponent.value[x]:valueCodeableConcept.text Short description Plain text representation of the concept Definition A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user. Requirements 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. Comments Very often the text is the same as a displayName of one of the codings. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE.9. But note many systems use CE.2 for this rim: ./originalText[mediaType/code="text/plain"]/data orim: fhir:CodeableConcept.text rdfs:subPropertyOf dt:CD.originalText
dataAbsentReason	I	0..0	CodeableConceptBinding	There are no (further) constraints on this element Element id Observation.component:supplementalTypesComponent.dataAbsentReason Short description Why the component result is missing Definition Provides a reason why the expected value in the element Observation.value[x] is missing. Requirements For many results it is necessary to handle exceptional values in measurements. Comments "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done". The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values. Data type CodeableConcept Binding Codes specifying why the result (Observation.value[x]) is missing. ?? (extensible) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE rim: CD orim: fhir:CodeableConcept rdfs:subClassOf dt:CD v2: N/A rim: value.nullFlavor
interpretation		0..1	CodeableConceptBinding	There are no (further) constraints on this element Element id Observation.component:supplementalTypesComponent.interpretation Short description High, low, normal, etc. Alternate names Abnormal Flag Definition The assessment made based on the result of the observation. Intended as a simple compact code often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result. Otherwise known as abnormal flag. Requirements For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result. Comments The component interpretation applies only to the individual component value. For an overall interpretation all components together use thes Observation.interpretation element. Data type CodeableConcept Binding Codes identifying interpretations of observations. ?? (extensible) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE rim: CD orim: fhir:CodeableConcept rdfs:subClassOf dt:CD sct-concept: < 260245000 \|Findings values\| v2: OBX-8 rim: interpretationCode sct-attr: 363713009 \|Has interpretation\|
referenceRange		0..*	see (referenceRange)	There are no (further) constraints on this element Element id Observation.component:supplementalTypesComponent.referenceRange Short description Provides guide for interpretation of component result Definition Guidance on how to interpret the value by comparison to a normal or recommended range. Requirements Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts. Comments Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this may not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties. Mappings v2: OBX.7 rim: outboundRelationship[typeCode=REFV]/target[classCode=OBS, moodCode=EVN]
relativeTimeComponent	Σ	0..1	BackboneElement	Element id Observation.component:relativeTimeComponent Short description Component results Definition This component shall be present if the measurement contains a Relative-Time-Stamp. Requirements Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation. Comments Relative time stamps are converted to wall clock time by the PHG through the Coincident Time Stamp Observation. The original relative time value shall be provided here in order to recover the data sent by the sensor device. The Relative-Time-Stamp is a 32-bit unsigned integer in units of 1/8th ms. Data type BackboneElement Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: containment by OBX-4? rim: outBoundRelationship[typeCode=COMP]
id		0..1	string	There are no (further) constraints on this element Element id Observation.component:relativeTimeComponent.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.component:relativeTimeComponent.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
modifierExtension	Σ ?! I	0..*	Extension	There are no (further) constraints on this element Element id Observation.component:relativeTimeComponent.modifierExtension Short description Extensions that cannot be ignored Alternate names extensions, user content, modifiers Definition May be used to represent additional information that is not part of the basic definition of the element, and that modifies the understanding of the element that contains it. Usually modifier elements provide negation or qualification. In order 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. Comments 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. Data type Extension Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
code	Σ	1..1	CodeableConcept	There are no (further) constraints on this element Element id Observation.component:relativeTimeComponent.code Short description Type of component observation (code / type) Definition Describes what was observed. Sometimes this is called the observation "code". Requirements Knowing what kind of observation is being made is essential to understanding the observation. Comments Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination. Data type CodeableConcept Binding Codes identifying names of simple observations. ?? (example) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE rim: CD orim: fhir:CodeableConcept rdfs:subClassOf dt:CD sct-concept: < 363787002 \|Observable entity\| OR < 386053000 \|Evaluation procedure\| v2: OBX-3 rim: code w5: what
id		0..1	string	There are no (further) constraints on this element Element id Observation.component:relativeTimeComponent.code.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.component:relativeTimeComponent.code.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
coding	Σ	1..*	Coding	Element id Observation.component:relativeTimesComponent.code.coding Short description Code defined by a terminology system Definition A reference to a code defined by a terminology system. Requirements Allows for translations and alternate encodings within a code system. Also supports communication of the same instance to systems requiring different encodings. Comments 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. Data type Coding Sliced: Ordered, Open, by code(Value) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE subset one of the sets of component 1-3 or 4-6 rim: CV orim: fhir:Coding rdfs:subClassOf dt:CDCoding v2: CE.1-8, CE.10-22 rim: union(., ./translation) orim: fhir:CodeableConcept.coding rdfs:subPropertyOf dt:CD.coding
11073Type	Σ	1..1	Coding	There are no (further) constraints on this element Element id Observation.component:relativeTimeComponent.code.coding:11073Type Short description Code defined by a terminology system Definition A reference to a code defined by a terminology system. Requirements Allows for translations and alternate encodings within a code system. Also supports communication of the same instance to systems requiring different encodings. Comments 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. Data type Coding Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE subset one of the sets of component 1-3 or 4-6 rim: CV orim: fhir:Coding rdfs:subClassOf dt:CDCoding v2: CE.1-8, CE.10-22 rim: union(., ./translation) orim: fhir:CodeableConcept.coding rdfs:subPropertyOf dt:CD.coding
id		0..1	string	There are no (further) constraints on this element Element id Observation.component:relativeTimeComponent.code.coding:11073Type.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.component:relativeTimeComponent.code.coding:11073Type.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
system	Σ	1..1	uriFixed Value	Element id Observation.component:relativeTimeComponent.code.coding:11073Type.system Short description Identity of the terminology system Definition The identification of the code system that defines the meaning of the symbol in the code. Requirements Need to be unambiguous about the source of the definition of the symbol. Comments The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should de-reference to some definition that establish the system clearly and unambiguously. Data type uri Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Fixed value urn:iso:std:iso:11073:10101 Mappings rim: n/a v2: CE.3 rim:* ./codeSystem orim: fhir:Coding.system rdfs:subPropertyOf dt:CDCoding.codeSystem
version	Σ	0..1	string	There are no (further) constraints on this element Element id Observation.component:relativeTimeComponent.code.coding:11073Type.version Short description Version of the system - if relevant Definition The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured. and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged. Comments Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE.7 rim:* ./codeSystemVersion orim: fhir:Coding.version rdfs:subPropertyOf dt:CDCoding.codeSystemVersion
code	Σ	1..1	codeFixed Value	Element id Observation.component:relativeTimeComponent.code.coding:11073Type.code Short description Symbol in syntax defined by the system Definition The MDC code of the Relative-Time-Stamp attribute Requirements Need to refer to a particular code in the system. Comments Note that FHIR strings may not exceed 1MB in size Data type code Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Fixed value 67985 Mappings rim: n/a v2: CE.1 rim:* ./code orim: fhir:Coding.code rdfs:subPropertyOf dt:CDCoding.code
display	Σ	0..1	string	Element id Observation.component:relativeTimeComponent.code.coding:11073Type.display Short description Representation defined by the system Definition The reference identifier should be included in the description. For a Relative-Time-Stamp the ref id is MDC_ATTR_TIME_STAMP_REL Requirements Need to be able to carry a human-readable meaning of the code for readers that do not know the system. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE.2 - but note this is not well followed rim:* CV.displayName orim: fhir:Coding.display rdfs:subPropertyOf dt:CDCoding.displayName
userSelected	Σ	0..1	boolean	There are no (further) constraints on this element Element id Observation.component:relativeTimeComponent.code.coding:11073Type.userSelected Short description If this coding was chosen directly by the user Definition Indicates that this coding was chosen by a user directly - i.e. off a pick list of available items (codes or displays). Requirements This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing. Comments Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely. Data type boolean Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: Sometimes implied by being first rim: CD.codingRationale orim: fhir:Coding.userSelected fhir:mapsTo dt:CDCoding.codingRationale. fhir:Coding.userSelected fhir:hasMap fhir:Coding.userSelected.map. fhir:Coding.userSelected.map a fhir:Map; fhir:target dt:CDCoding.codingRationale. fhir:Coding.userSelected\#true a [ fhir:source "true"; fhir:target dt:CDCoding.codingRationale\#O ]
text	Σ	0..1	string	There are no (further) constraints on this element Element id Observation.component:relativeTimeComponent.code.text Short description Plain text representation of the concept Definition A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user. Requirements 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. Comments Very often the text is the same as a displayName of one of the codings. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE.9. But note many systems use CE.2 for this rim: ./originalText[mediaType/code="text/plain"]/data orim: fhir:CodeableConcept.text rdfs:subPropertyOf dt:CD.originalText
valueQuantity	Σ	1..1	Quantity	Element id Observation.component:relativeTimeComponent.value[x]:valueQuantity Short description Actual component result Definition The information determined as a result of making the observation, if the information has a simple value. Requirements An observation exists to have a value, though it may not if it is in error, or if it represents a group of observations. Comments Normally, an observation will have either a single value or a set of related observations. A few observations (e.g. Apgar score) may have both a value and related observations (for an Apgar score, the observations from which the measure is derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For boolean values use valueCodeableConcept and select codes from http://hl7.org/fhir/ValueSet/v2-0136 (these "yes/no" concepts can be mapped to the display name "true/false" or other mutually exclusive terms that may be needed"). The element, Observation.value[x], has a variable name depending on the type as follows: valueQuantity, valueCodeableConcept, valueRatio, valueChoice, valuePeriod, valueSampleData, or valueString (the name format is "'value' + the type name" with a capital on the first letter of the type). Data type Quantity Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a sct-concept: 363714003 \|Interprets\| < 441742003 \|Evaluation finding\| v2: OBX.2, OBX.5, OBX.6 rim: value sct-attr: 363714003 \|Interprets\|
id		0..1	string	There are no (further) constraints on this element Element id Observation.component:relativeTimeComponent.value[x]:valueQuantity.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.component:relativeTimeComponent.value[x]:valueQuantity.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
value	Σ	1..1	decimal	Element id Observation.component:relativeTimeComponent.value[x]:valueQuantity.value Short description Numerical value (with implicit precision) Definition The value of the relative time attribute which is in units of 1/8th milliseconds scaled to microseconds. Requirements Precision is handled implicitly in almost all cases of measurement. Comments The implicit precision in the value should always be honored. Monetary values have their own rules for handling precision (refer to standard accounting text books). Data type decimal Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: SN.2 / CQ - N/A rim: PQ.value, CO.value, MO.value, IVL.high or IVL.low depending on the value
comparator	Σ ?!	0..1	codeBinding	There are no (further) constraints on this element Element id Observation.component:relativeTimeComponent.value[x]:valueQuantity.comparator Short description < \| <= \| >= \| > - how to understand the value Definition How the value should be understood and represented - whether the actual value is greater or less than the stated value due to measurement issues; e.g. if the comparator is "<" , then the real value is < stated value. Requirements Need a framework for handling measures where the value is <5ug/L or >400mg/L due to the limitations of measuring methodology. Comments This is labeled as "Is Modifier" because the comparator modifies the interpretation of the value significantly. If there is no comparator, then there is no modification of the value. Meaning when missing If there is no comparator, then there is no modification of the value Data type code Binding How the Quantity should be understood and represented. ?? (required) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: SN.1 / CQ.1 rim: IVL properties
unit	Σ	1..1	string	Element id Observation.component:relativeTimeComponent.value[x]:valueQuantity.unit Short description Unit representation Definition A human-readable form of the unit which in this case is recommended to be the UCUM code for microseconds (us) Requirements There are many representations for units of measure and in many contexts, particular representations are fixed and required. I.e. mcg for micrograms. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: (see OBX.6 etc.) / CQ.2 rim: PQ.unit
system	Σ I	1..1	uriFixed Value	Element id Observation.component:relativeTimeComponent.value[x]:valueQuantity.system Short description System that defines coded unit form Definition The unit code shall use the MDC system Requirements Need to know the system that defines the coded form of the unit. Comments see http://en.wikipedia.org/wiki/Uniform_resource_identifier Data type uri Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Fixed value urn:iso:std:iso:11073:10101 Mappings rim: n/a v2: (see OBX.6 etc.) / CQ.2 rim: CO.codeSystem, PQ.translation.codeSystem
code	Σ	1..1	codeFixed Value	Element id Observation.component:relativeTimeComponent.value[x]:valueQuantity.code Short description Coded form of the unit Definition The MDC code for microseconds is 264339 Requirements Need a computable form of the unit that is fixed across all forms. UCUM provides this for quantities, but SNOMED CT provides many units of interest. Comments The preferred system is UCUM, but SNOMED CT can also be used (for customary units) or ISO 4217 for currency. The context of use may additionally require a code from a particular system. Data type code Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Fixed value 264339 Mappings rim: n/a v2: (see OBX.6 etc.) / CQ.2 rim: PQ.code, MO.currency, PQ.translation.code
dataAbsentReason	I	0..0	CodeableConceptBinding	There are no (further) constraints on this element Element id Observation.component:relativeTimeComponent.dataAbsentReason Short description Why the component result is missing Definition Provides a reason why the expected value in the element Observation.value[x] is missing. Requirements For many results it is necessary to handle exceptional values in measurements. Comments "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done". The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values. Data type CodeableConcept Binding Codes specifying why the result (Observation.value[x]) is missing. ?? (extensible) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE rim: CD orim: fhir:CodeableConcept rdfs:subClassOf dt:CD v2: N/A rim: value.nullFlavor
interpretation		0..1	CodeableConceptBinding	There are no (further) constraints on this element Element id Observation.component:relativeTimeComponent.interpretation Short description High, low, normal, etc. Alternate names Abnormal Flag Definition The assessment made based on the result of the observation. Intended as a simple compact code often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result. Otherwise known as abnormal flag. Requirements For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result. Comments The component interpretation applies only to the individual component value. For an overall interpretation all components together use thes Observation.interpretation element. Data type CodeableConcept Binding Codes identifying interpretations of observations. ?? (extensible) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE rim: CD orim: fhir:CodeableConcept rdfs:subClassOf dt:CD sct-concept: < 260245000 \|Findings values\| v2: OBX-8 rim: interpretationCode sct-attr: 363713009 \|Has interpretation\|
referenceRange		0..*	see (referenceRange)	There are no (further) constraints on this element Element id Observation.component:relativeTimeComponent.referenceRange Short description Provides guide for interpretation of component result Definition Guidance on how to interpret the value by comparison to a normal or recommended range. Requirements Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts. Comments Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this may not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties. Mappings v2: OBX.7 rim: outboundRelationship[typeCode=REFV]/target[classCode=OBS, moodCode=EVN]
hiresRelativeTimeComponent	Σ	0..1	BackboneElement	Element id Observation.component:hiresRelativeTimeComponent Short description Component results Definition This component shall be present if the measurement contains Hi-Res-Relative-Time-Stamp. Requirements Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation. Comments Hi Res Relative time stamps are converted to wall clock time by the PHG through the Coincident Time Stamp Observation. The original relative time value shall be provided here in order to recover the data sent by the sensor device. The Hi-Res-Relative-Time-Stamp is a 64-bit unsigned interger in units of microseconds. Data type BackboneElement Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: containment by OBX-4? rim: outBoundRelationship[typeCode=COMP]
id		0..1	string	There are no (further) constraints on this element Element id Observation.component:hiresRelativeTimeComponent.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.component:hiresRelativeTimeComponent.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
modifierExtension	Σ ?! I	0..*	Extension	There are no (further) constraints on this element Element id Observation.component:hiresRelativeTimeComponent.modifierExtension Short description Extensions that cannot be ignored Alternate names extensions, user content, modifiers Definition May be used to represent additional information that is not part of the basic definition of the element, and that modifies the understanding of the element that contains it. Usually modifier elements provide negation or qualification. In order 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. Comments 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. Data type Extension Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
code	Σ	1..1	CodeableConcept	There are no (further) constraints on this element Element id Observation.component:hiresRelativeTimeComponent.code Short description Type of component observation (code / type) Definition Describes what was observed. Sometimes this is called the observation "code". Requirements Knowing what kind of observation is being made is essential to understanding the observation. Comments Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination. Data type CodeableConcept Binding Codes identifying names of simple observations. ?? (example) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE rim: CD orim: fhir:CodeableConcept rdfs:subClassOf dt:CD sct-concept: < 363787002 \|Observable entity\| OR < 386053000 \|Evaluation procedure\| v2: OBX-3 rim: code w5: what
id		0..1	string	There are no (further) constraints on this element Element id Observation.component:hiresRelativeTimeComponent.code.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.component:hiresRelativeTimeComponent.code.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
coding	Σ	1..*	Coding	Element id Observation.component:hiresRelativeTimeComponent.code.coding Short description Code defined by a terminology system Definition A reference to a code defined by a terminology system. Requirements Allows for translations and alternate encodings within a code system. Also supports communication of the same instance to systems requiring different encodings. Comments 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. Data type Coding Sliced: Ordered, Open, by code(Value) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE subset one of the sets of component 1-3 or 4-6 rim: CV orim: fhir:Coding rdfs:subClassOf dt:CDCoding v2: CE.1-8, CE.10-22 rim: union(., ./translation) orim: fhir:CodeableConcept.coding rdfs:subPropertyOf dt:CD.coding
11073Type	Σ	1..1	Coding	There are no (further) constraints on this element Element id Observation.component:hiresRelativeTimeComponent.code.coding:11073Type Short description Code defined by a terminology system Definition A reference to a code defined by a terminology system. Requirements Allows for translations and alternate encodings within a code system. Also supports communication of the same instance to systems requiring different encodings. Comments 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. Data type Coding Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE subset one of the sets of component 1-3 or 4-6 rim: CV orim: fhir:Coding rdfs:subClassOf dt:CDCoding v2: CE.1-8, CE.10-22 rim: union(., ./translation) orim: fhir:CodeableConcept.coding rdfs:subPropertyOf dt:CD.coding
id		0..1	string	There are no (further) constraints on this element Element id Observation.component:hiresRelativeTimeComponent.code.coding:11073Type.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.component:hiresRelativeTimeComponent.code.coding:11073Type.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
system	Σ	1..1	uriFixed Value	Element id Observation.component:hiresRelativeTimeComponent.code.coding:11073Type.system Short description Identity of the terminology system Definition The identification of the code system that defines the meaning of the symbol in the code. Requirements Need to be unambiguous about the source of the definition of the symbol. Comments The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should de-reference to some definition that establish the system clearly and unambiguously. Data type uri Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Fixed value urn:iso:std:iso:11073:10101 Mappings rim: n/a v2: CE.3 rim:* ./codeSystem orim: fhir:Coding.system rdfs:subPropertyOf dt:CDCoding.codeSystem
version	Σ	0..1	string	There are no (further) constraints on this element Element id Observation.component:hiresRelativeTimeComponent.code.coding:11073Type.version Short description Version of the system - if relevant Definition The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured. and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged. Comments Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE.7 rim:* ./codeSystemVersion orim: fhir:Coding.version rdfs:subPropertyOf dt:CDCoding.codeSystemVersion
code	Σ	1..1	codeFixed Value	Element id Observation.component:hiresRelativeTimeComponent.code.coding:11073Type.code Short description Symbol in syntax defined by the system Definition The MDC code for the Hi-Res-Relative-Time-Stamp attribute Requirements Need to refer to a particular code in the system. Comments Note that FHIR strings may not exceed 1MB in size Data type code Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Fixed value 68073 Mappings rim: n/a v2: CE.1 rim:* ./code orim: fhir:Coding.code rdfs:subPropertyOf dt:CDCoding.code
display	Σ	0..1	string	Element id Observation.component:hiresRelativeTime.code.coding:11073Type.display Short description Representation defined by the system Definition The reference identifier should be included in the description. For a Hi-Res-Relative-Time-Stamp the ref id is MDC_ATTR_TIME_STAMP_REL_HI_RES Requirements Need to be able to carry a human-readable meaning of the code for readers that do not know the system. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE.2 - but note this is not well followed rim:* CV.displayName orim: fhir:Coding.display rdfs:subPropertyOf dt:CDCoding.displayName
userSelected	Σ	0..1	boolean	There are no (further) constraints on this element Element id Observation.component:hiresRelativeTimeComponent.code.coding:11073Type.userSelected Short description If this coding was chosen directly by the user Definition Indicates that this coding was chosen by a user directly - i.e. off a pick list of available items (codes or displays). Requirements This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing. Comments Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely. Data type boolean Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: Sometimes implied by being first rim: CD.codingRationale orim: fhir:Coding.userSelected fhir:mapsTo dt:CDCoding.codingRationale. fhir:Coding.userSelected fhir:hasMap fhir:Coding.userSelected.map. fhir:Coding.userSelected.map a fhir:Map; fhir:target dt:CDCoding.codingRationale. fhir:Coding.userSelected\#true a [ fhir:source "true"; fhir:target dt:CDCoding.codingRationale\#O ]
text	Σ	0..1	string	There are no (further) constraints on this element Element id Observation.component:hiresRelativeTimeComponent.code.text Short description Plain text representation of the concept Definition A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user. Requirements 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. Comments Very often the text is the same as a displayName of one of the codings. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE.9. But note many systems use CE.2 for this rim: ./originalText[mediaType/code="text/plain"]/data orim: fhir:CodeableConcept.text rdfs:subPropertyOf dt:CD.originalText
valueQuantity	Σ	1..1	Quantity	Element id Observation.component:hiresRelativeTimeComponent.value[x]:valueQuantity Short description Actual component result Definition The information determined as a result of making the observation, if the information has a simple value. Requirements An observation exists to have a value, though it may not if it is in error, or if it represents a group of observations. Comments Normally, an observation will have either a single value or a set of related observations. A few observations (e.g. Apgar score) may have both a value and related observations (for an Apgar score, the observations from which the measure is derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For boolean values use valueCodeableConcept and select codes from http://hl7.org/fhir/ValueSet/v2-0136 (these "yes/no" concepts can be mapped to the display name "true/false" or other mutually exclusive terms that may be needed"). The element, Observation.value[x], has a variable name depending on the type as follows: valueQuantity, valueCodeableConcept, valueRatio, valueChoice, valuePeriod, valueSampleData, or valueString (the name format is "'value' + the type name" with a capital on the first letter of the type). Data type Quantity Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a sct-concept: 363714003 \|Interprets\| < 441742003 \|Evaluation finding\| v2: OBX.2, OBX.5, OBX.6 rim: value sct-attr: 363714003 \|Interprets\|
id		0..1	string	There are no (further) constraints on this element Element id Observation.component:hiresRelativeTimeComponent.value[x]:valueQuantity.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.component:hiresRelativeTimeComponent.value[x]:valueQuantity.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
value	Σ	1..1	decimal	Element id Observation.component:hiresRelativeTimeComponent.value[x]:valueQuantity.value Short description Numerical value Definition The value of the hi res relative time attribute (already in microseconds). Requirements Precision is handled implicitly in almost all cases of measurement. Comments The implicit precision in the value should always be honored. Monetary values have their own rules for handling precision (refer to standard accounting text books). Data type decimal Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: SN.2 / CQ - N/A rim: PQ.value, CO.value, MO.value, IVL.high or IVL.low depending on the value
comparator	Σ ?!	0..1	codeBinding	There are no (further) constraints on this element Element id Observation.component:hiresRelativeTimeComponent.value[x]:valueQuantity.comparator Short description < \| <= \| >= \| > - how to understand the value Definition How the value should be understood and represented - whether the actual value is greater or less than the stated value due to measurement issues; e.g. if the comparator is "<" , then the real value is < stated value. Requirements Need a framework for handling measures where the value is <5ug/L or >400mg/L due to the limitations of measuring methodology. Comments This is labeled as "Is Modifier" because the comparator modifies the interpretation of the value significantly. If there is no comparator, then there is no modification of the value. Meaning when missing If there is no comparator, then there is no modification of the value Data type code Binding How the Quantity should be understood and represented. ?? (required) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: SN.1 / CQ.1 rim: IVL properties
unit	Σ	1..1	string	Element id Observation.component:hiresRelativeTimeComponent.value[x]:valueQuantity.unit Short description Unit representation Definition A human-readable form of the unit which in this case is recommended to be the UCUM code for microseconds (us) Requirements There are many representations for units of measure and in many contexts, particular representations are fixed and required. I.e. mcg for micrograms. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: (see OBX.6 etc.) / CQ.2 rim: PQ.unit
system	Σ I	1..1	uriFixed Value	Element id Observation.component:hiresRelativeTimeComponent.value[x]:valueQuantity.system Short description System that defines coded unit form Definition The unit code shall use the MDC system Requirements Need to know the system that defines the coded form of the unit. Comments see http://en.wikipedia.org/wiki/Uniform_resource_identifier Data type uri Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Fixed value urn:iso:std:iso:11073:10101 Mappings rim: n/a v2: (see OBX.6 etc.) / CQ.2 rim: CO.codeSystem, PQ.translation.codeSystem
code	Σ	1..1	codeFixed Value	Element id Observation.component:hiresRelativeTimeComponent.value[x]:valueQuantity.code Short description Coded form of the unit Definition The MDC code for microseconds is 264339 Requirements Need a computable form of the unit that is fixed across all forms. UCUM provides this for quantities, but SNOMED CT provides many units of interest. Comments The preferred system is UCUM, but SNOMED CT can also be used (for customary units) or ISO 4217 for currency. The context of use may additionally require a code from a particular system. Data type code Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Fixed value 264339 Mappings rim: n/a v2: (see OBX.6 etc.) / CQ.2 rim: PQ.code, MO.currency, PQ.translation.code
dataAbsentReason	I	0..0	CodeableConceptBinding	There are no (further) constraints on this element Element id Observation.component:hiresRelativeTimeComponent.dataAbsentReason Short description Why the component result is missing Definition Provides a reason why the expected value in the element Observation.value[x] is missing. Requirements For many results it is necessary to handle exceptional values in measurements. Comments "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done". The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values. Data type CodeableConcept Binding Codes specifying why the result (Observation.value[x]) is missing. ?? (extensible) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE rim: CD orim: fhir:CodeableConcept rdfs:subClassOf dt:CD v2: N/A rim: value.nullFlavor
interpretation		0..1	CodeableConceptBinding	There are no (further) constraints on this element Element id Observation.component:hiresRelativeTimeComponent.interpretation Short description High, low, normal, etc. Alternate names Abnormal Flag Definition The assessment made based on the result of the observation. Intended as a simple compact code often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result. Otherwise known as abnormal flag. Requirements For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result. Comments The component interpretation applies only to the individual component value. For an overall interpretation all components together use thes Observation.interpretation element. Data type CodeableConcept Binding Codes identifying interpretations of observations. ?? (extensible) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE rim: CD orim: fhir:CodeableConcept rdfs:subClassOf dt:CD sct-concept: < 260245000 \|Findings values\| v2: OBX-8 rim: interpretationCode sct-attr: 363713009 \|Has interpretation\|
referenceRange		0..*	see (referenceRange)	There are no (further) constraints on this element Element id Observation.component:hiresRelativeTimeComponent.referenceRange Short description Provides guide for interpretation of component result Definition Guidance on how to interpret the value by comparison to a normal or recommended range. Requirements Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts. Comments Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this may not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties. Mappings v2: OBX.7 rim: outboundRelationship[typeCode=REFV]/target[classCode=OBS, moodCode=EVN]
measurementStatusComponent	Σ	0..*	BackboneElement	Element id Observation.component:measurementStatusComponent Short description Component results Definition This component gives one of the settings reported in the Measurement-Status attribute that are not reported in the Observation.dataAbsentReason or Observation.status element. The settings that ARE reported in the dataAbsentReason and status elements are 'invalid', 'questionable', 'not-available', and 'early-indication'. It is optional to report any of the other settings UNLESS MDER-BITs 14 or 15 are set. It is optional to report any defined cleared setting; these are all events. Requirements This component indicates a Measurement-Status setting. Comments When MDER-BITs 14 and 15 are set, these are special uses cases by the Pulse Oximeter and Continuous Glucose specialization. MDER-BIT 14 indicates that a threshold set up in other attributes has been crossed. MDER-BIT 15 indicates that the alert mechanism has been turned off. There will be one measurementStatusComponent entry for every setting reported. Data type BackboneElement Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: containment by OBX-4? rim: outBoundRelationship[typeCode=COMP]
id		0..1	string	There are no (further) constraints on this element Element id Observation.component:measurementStatusComponent.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.component:measurementStatusComponent.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
modifierExtension	Σ ?! I	0..*	Extension	There are no (further) constraints on this element Element id Observation.component:measurementStatusComponent.modifierExtension Short description Extensions that cannot be ignored Alternate names extensions, user content, modifiers Definition May be used to represent additional information that is not part of the basic definition of the element, and that modifies the understanding of the element that contains it. Usually modifier elements provide negation or qualification. In order 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. Comments 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. Data type Extension Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
code	Σ	1..1	CodeableConcept	There are no (further) constraints on this element Element id Observation.component:measurementStatusComponent.code Short description Type of component observation (code / type) Definition Describes what was observed. Sometimes this is called the observation "code". Requirements Knowing what kind of observation is being made is essential to understanding the observation. Comments Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination. Data type CodeableConcept Binding Codes identifying names of simple observations. ?? (example) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE rim: CD orim: fhir:CodeableConcept rdfs:subClassOf dt:CD sct-concept: < 363787002 \|Observable entity\| OR < 386053000 \|Evaluation procedure\| v2: OBX-3 rim: code w5: what
id		0..1	string	There are no (further) constraints on this element Element id Observation.component:measurementStatusComponent.code.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.component:measurementStatusComponent.code.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
coding	Σ	1..1	Coding	Element id Observation.component:measurementStatusComponent.code.coding Short description Code defined by a terminology system Definition A reference to a code defined by a terminology system. Requirements Allows for translations and alternate encodings within a code system. Also supports communication of the same instance to systems requiring different encodings. Comments Normally alternative coding systems are allowed but in this case the value is intimately tied to the code. The code represents the feature indicated by a bit settin in the attribute value. which is either cleared (0) or set (1). Thus the value for this entry is itself a binary 'Y' or 'N' code from http://hl7.org/fhir/v2/0136 Data type Coding Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE subset one of the sets of component 1-3 or 4-6 rim: CV orim: fhir:Coding rdfs:subClassOf dt:CDCoding v2: CE.1-8, CE.10-22 rim: union(., ./translation) orim: fhir:CodeableConcept.coding rdfs:subPropertyOf dt:CD.coding
id		0..1	string	There are no (further) constraints on this element Element id Observation.component:measurementStatusComponent.code.coding.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.component:measurementStatusComponent.code.coding.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
system	Σ	1..1	uriFixed Value	Element id Observation.component:measurementStatusComponent.code.coding.system Short description Identity of the terminology system Definition The identification of the code system that defines the meaning of the symbol in the code. Requirements Need to be unambiguous about the source of the definition of the symbol. Comments The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should de-reference to some definition that establish the system clearly and unambiguously. Data type uri Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Fixed value http://hl7.org/fhir/IEEE.ASN1 Mappings rim: n/a v2: CE.3 rim:* ./codeSystem orim: fhir:Coding.system rdfs:subPropertyOf dt:CDCoding.codeSystem
version	Σ	0..1	string	There are no (further) constraints on this element Element id Observation.component:measurementStatusComponent.code.coding.version Short description Version of the system - if relevant Definition The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured. and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged. Comments Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE.7 rim:* ./codeSystemVersion orim: fhir:Coding.version rdfs:subPropertyOf dt:CDCoding.codeSystemVersion
code	Σ	1..1	code	Element id Observation.component:measurementStatusComponent.code.coding.code Short description Symbol in syntax defined by the system Definition This code, which is an alpha-numeric string, is generated by the attribute MDC code, which is 133447 for the Measurement-Status, followed by a dot (.) followed by the MDER-bit that was set. Requirements Need to refer to a particular code in the system. Comments Note that this code is an alpha-numeric string and not a decimal number. Think of it like a very-limited OID. MDER-BITs 14 and 15 shall be reported if set. Data type code Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE.1 rim:* ./code orim: fhir:Coding.code rdfs:subPropertyOf dt:CDCoding.code
display	Σ	0..1	string	There are no (further) constraints on this element Element id Observation.component:measurementStatusComponent.code.coding.display Short description Representation defined by the system Definition A representation of the meaning of the code in the system, following the rules of the system. Requirements Need to be able to carry a human-readable meaning of the code for readers that do not know the system. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE.2 - but note this is not well followed rim:* CV.displayName orim: fhir:Coding.display rdfs:subPropertyOf dt:CDCoding.displayName
userSelected	Σ	0..1	boolean	There are no (further) constraints on this element Element id Observation.component:measurementStatusComponent.code.coding.userSelected Short description If this coding was chosen directly by the user Definition Indicates that this coding was chosen by a user directly - i.e. off a pick list of available items (codes or displays). Requirements This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing. Comments Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely. Data type boolean Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: Sometimes implied by being first rim: CD.codingRationale orim: fhir:Coding.userSelected fhir:mapsTo dt:CDCoding.codingRationale. fhir:Coding.userSelected fhir:hasMap fhir:Coding.userSelected.map. fhir:Coding.userSelected.map a fhir:Map; fhir:target dt:CDCoding.codingRationale. fhir:Coding.userSelected\#true a [ fhir:source "true"; fhir:target dt:CDCoding.codingRationale\#O ]
text	Σ	0..1	string	There are no (further) constraints on this element Element id Observation.component:measurementStatusComponent.code.text Short description Plain text representation of the concept Definition A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user. Requirements 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. Comments Very often the text is the same as a displayName of one of the codings. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE.9. But note many systems use CE.2 for this rim: ./originalText[mediaType/code="text/plain"]/data orim: fhir:CodeableConcept.text rdfs:subPropertyOf dt:CD.originalText
valueCodeableConcept	Σ	1..1	CodeableConcept	Element id Observation.component:measurementStatusComponent.value[x] Short description Actual component result Definition The information determined as a result of making the observation, if the information has a simple value. Requirements An observation exists to have a value, though it may not if it is in error, or if it represents a group of observations. Comments Normally, an observation will have either a single value or a set of related observations. A few observations (e.g. Apgar score) may have both a value and related observations (for an Apgar score, the observations from which the measure is derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For boolean values use valueCodeableConcept and select codes from http://hl7.org/fhir/ValueSet/v2-0136 (these "yes/no" concepts can be mapped to the display name "true/false" or other mutually exclusive terms that may be needed"). The element, Observation.value[x], has a variable name depending on the type as follows: valueQuantity, valueCodeableConcept, valueRatio, valueChoice, valuePeriod, valueSampleData, or valueString (the name format is "'value' + the type name" with a capital on the first letter of the type). Data type CodeableConcept Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a sct-concept: 363714003 \|Interprets\| < 441742003 \|Evaluation finding\| v2: OBX.2, OBX.5, OBX.6 rim: value sct-attr: 363714003 \|Interprets\|
id		0..1	string	There are no (further) constraints on this element Element id Observation.component:measurementStatusComponent.value[x].id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.component:measurementStatusComponent.value[x].extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
coding	Σ	1..1	Coding	There are no (further) constraints on this element Element id Observation.component:measurementStatusComponent.value[x]:valueCodeableConcept.coding Short description Code defined by a terminology system Definition A reference to a code defined by a terminology system. Requirements Allows for translations and alternate encodings within a code system. Also supports communication of the same instance to systems requiring different encodings. Comments 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. Data type Coding Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE subset one of the sets of component 1-3 or 4-6 rim: CV orim: fhir:Coding rdfs:subClassOf dt:CDCoding v2: CE.1-8, CE.10-22 rim: union(., ./translation) orim: fhir:CodeableConcept.coding rdfs:subPropertyOf dt:CD.coding
id		0..1	string	There are no (further) constraints on this element Element id Observation.component:measurementStatusComponent.value[x].coding.id Short description xml:id (or equivalent in JSON) Definition unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Observation.component:measurementStatusComponent.value[x].coding.extension Short description Additional Content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the element. In order 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. Comments 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` ext-1: Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim: n/a rim: N/A
system	Σ	1..1	uriFixed Value	Element id Observation.component:measurementStatusComponent.value[x]:valueCodeableConcept.coding.system Short description Identity of the terminology system Definition This coding system contains only two entries, 'Y' (yes) and 'N' (no) Requirements Need to be unambiguous about the source of the definition of the symbol. Comments The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should de-reference to some definition that establish the system clearly and unambiguously. Data type uri Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Fixed value http://hl7.org/fhir/v2/0136 Mappings rim: n/a v2: CE.3 rim:* ./codeSystem orim: fhir:Coding.system rdfs:subPropertyOf dt:CDCoding.codeSystem
version	Σ	0..1	string	There are no (further) constraints on this element Element id Observation.component:measurementStatusComponent.value[x].coding.version Short description Version of the system - if relevant Definition The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured. and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged. Comments Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE.7 rim:* ./codeSystemVersion orim: fhir:Coding.version rdfs:subPropertyOf dt:CDCoding.codeSystemVersion
code	Σ	1..1	code	Element id Observation.component:measurementStatusComponent.value[x]:valueCodeableConcept.coding.code Short description Symbol in syntax defined by the system Definition If the MDER-Bit is set, the code value is 'Y' otherwise it is 'N' Requirements Need to refer to a particular code in the system. Comments Recall that when the value is 'Y' the alarm or alert is turned off Data type code Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE.1 rim:* ./code orim: fhir:Coding.code rdfs:subPropertyOf dt:CDCoding.code
display	Σ	0..1	string	There are no (further) constraints on this element Element id Observation.component:measurementStatusComponent.value[x].coding.display Short description Representation defined by the system Definition A representation of the meaning of the code in the system, following the rules of the system. Requirements Need to be able to carry a human-readable meaning of the code for readers that do not know the system. Comments Note that FHIR strings may not exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE.2 - but note this is not well followed rim:* CV.displayName orim: fhir:Coding.display rdfs:subPropertyOf dt:CDCoding.displayName
userSelected	Σ	0..1	boolean	There are no (further) constraints on this element Element id Observation.component:measurementStatusComponent.value[x].coding.userSelected Short description If this coding was chosen directly by the user Definition Indicates that this coding was chosen by a user directly - i.e. off a pick list of available items (codes or displays). Requirements This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing. Comments Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely. Data type boolean Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: Sometimes implied by being first rim: CD.codingRationale orim: fhir:Coding.userSelected fhir:mapsTo dt:CDCoding.codingRationale. fhir:Coding.userSelected fhir:hasMap fhir:Coding.userSelected.map. fhir:Coding.userSelected.map a fhir:Map; fhir:target dt:CDCoding.codingRationale. fhir:Coding.userSelected\#true a [ fhir:source "true"; fhir:target dt:CDCoding.codingRationale\#O ]
text	Σ	0..1	string	There are no (further) constraints on this element Element id Observation.component:measurementStatusComponent.value[x].text Short description Plain text representation of the concept Definition A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user. Requirements 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. Comments Very often the text is the same as a displayName of one of the codings. Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE.9. But note many systems use CE.2 for this rim: ./originalText[mediaType/code="text/plain"]/data orim: fhir:CodeableConcept.text rdfs:subPropertyOf dt:CD.originalText
dataAbsentReason	I	0..0	CodeableConceptBinding	There are no (further) constraints on this element Element id Observation.component:measurementStatusComponent.dataAbsentReason Short description Why the component result is missing Definition Provides a reason why the expected value in the element Observation.value[x] is missing. Requirements For many results it is necessary to handle exceptional values in measurements. Comments "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done". The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values. Data type CodeableConcept Binding Codes specifying why the result (Observation.value[x]) is missing. ?? (extensible) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE rim: CD orim: fhir:CodeableConcept rdfs:subClassOf dt:CD v2: N/A rim: value.nullFlavor
interpretation		0..1	CodeableConceptBinding	There are no (further) constraints on this element Element id Observation.component:measurementStatusComponent.interpretation Short description High, low, normal, etc. Alternate names Abnormal Flag Definition The assessment made based on the result of the observation. Intended as a simple compact code often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result. Otherwise known as abnormal flag. Requirements For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result. Comments The component interpretation applies only to the individual component value. For an overall interpretation all components together use thes Observation.interpretation element. Data type CodeableConcept Binding Codes identifying interpretations of observations. ?? (extensible) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() \| (children().count() > id.count())` Mappings rim: n/a v2: CE/CNE/CWE rim: CD orim: fhir:CodeableConcept rdfs:subClassOf dt:CD sct-concept: < 260245000 \|Findings values\| v2: OBX-8 rim: interpretationCode sct-attr: 363713009 \|Has interpretation\|
referenceRange		0..*	see (referenceRange)	There are no (further) constraints on this element Element id Observation.component:measurementStatusComponent.referenceRange Short description Provides guide for interpretation of component result Definition Guidance on how to interpret the value by comparison to a normal or recommended range. Requirements Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts. Comments Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this may not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties. Mappings v2: OBX.7 rim: outboundRelationship[typeCode=REFV]/target[classCode=OBS, moodCode=EVN]

PHD Profile Identifier

The PHD Profile Identifier is used to prevent data duplication. It serves as the selection criteria in the conditional create. All measurements that have a timestamp earlier than the current time of connection are required to use the conditional create upload when converted to FHIR. If the uploader knows that the received measurement is a new measurement or the measurement is received with no time stamp, then the identifier is not needed.

Ideally the uploader will implement a duplication detection mechanism and filter out any measurements that have already been uploaded. One possible mechanism is to record the latest time stamp of any measurement received during a connection. Then for a given device and patient and upload destination, on a subsequent connection filter out any measurements with a time stamp earlier than the recorded latest time stamp of the previous connection. The latest time stamp is then updated given the information received during the current connection. The filter not only saves the server from handling the conditional update transaction but saves bandwidth and upload costs.

The identifier is a combined string of elements that contain sufficient information to uniquely identify the measurement for a given patient and device. The identifier is thus a combination of the device identifier, patient identifier, PHD timestamp of the measurement, measurement type code, measurement value, and the list of Supplemental-Types codes if any. Each entry is separated by a dash (-). It is important to use the time stamp of the PHD and not the potentially modified time stamp placed in the Observation.effective[x] element. Two PHGs may have slightly different times which would allow a duplicate measurement to appear different.

All Continua compliant PHGs must implement this identifier in the same manner. Compliance assures that even if the patient uploads the same measurement to the same server from a different PHG, a duplicate of the measurement will not be generated on the server. Some Bluetooth Low Energy PHDs do not provide a means of deleting stored data and will upload all the old data with each new addition up to the point of the device storage.

The consumer of this Observation resource should ignore the identifier element used for the PHD Profiles.

Generation of the PHD Profile Identifier is PHD Profile specific and is outlined in the respective profiles.

Obtaining the Type of Measurement

One obtains the 11073 20601 measurement type for the code element in the same manner for all metric measurments. See the section Obtaining the Observation.code for the details of this mapping.

Subject

The subject element points to the PhdPatient resource using the logical id of the Patient resource, for example 'Patient/123546'

Time Stamp: effective[x]

PHDs report time stamps in one of four methods and may not report time stamps at all. The time clock types are summarized below:

Time Stamp Type	Description	PHD requirement	PHG conversion
Absolute Time	Local Wall clock time without time zone information	PHD must provide its current absolute time	PHG maps UTC plus offset and may correct it as described in the section Coincident Time Stamp
Base-Offset Time	Time as UTC plus time added in minutes to get the local time	PHD must provide its current base-offset time	PHG maps UTC plus offset and may correct it as described in the section Coincident Time Stamp
Relative time	The number of ticks in units of 1/8th millisecond	PHD must provide its current relative time	PHD obtains the current relative time at its current time and maps all measurement times to UTC plus offset based upon the difference given by the current relative time
Hi-Resolution Relative time	The number of ticks in units of microseconds	PHD must provide its current hi-res time	PHD obtains the current hi-res relative time at its current time and maps all measurement times to UTC plus offset based upon the difference given by the current relative time
No time stamp			PHG uses time of reception as UTC plus offset

The PHG maps the 'converted' time stamp to either an Observation.effectiveDateTime element or an Observation.effectivePeriod element. The second situation occurs when the metric measurement includes a Measurement-Active-Period (duration) attribute. Then the time stamp attribute gives the start of the period and the end of the period is obtained by adding the Measurement-Active-Period value to it. If no time stamp is provided, the PHG, using the time of reception of the measurement as its time stamp must then do the reverse; the time of reception is the end time and the start time is given by subtracting the Measurement-Active-Period value from it.

Device

The Observation.device element is a reference to the Device resource representing the PHD that took the measurement.

derivedFrom: Coincident time stamp and Source Handle reference

This element references Observation resources that are in some manner related to this Observation resource. In the PHD use case, this situation occurs whenever the metric measurement reported by the PHD has a time stamp and/or the measurement contains a source handle reference attribute.

Time Stamp case

When the metric measurement contains a time stamp, there will be a Coincident Time Stamp Observation defining the details of how the Observtion.effective[x] element is generated.

Source-Handle-Reference case

A Source-Handle-Reference attribute points to a previously reported measurement that is important to this measurement. By previously it is meant that the measurement is reported prior to the current measurement but in the same connection. If multiple such measurements have been received, the correct one is that which is most recently received. As an example, the cardiovascular specialization defines a session measurement defining some type of exercise period, such as a run. All measurements taken during that run have a source handle reference attribute pointing to the session measurement. Since Source-Handle-Reference attributes use IEEE 11073 Object handle values and not Logical resource ids to point to measurements, the PHG will need to keep track of the Observation resources created during a connection to identify the correct Observation resource, and thus logical id, the Source-Handle-Reference attribute points to. The latest version of the IEEE 11073 20601 standard also supports a Source-Handle-Reference-List containing a list of handles so there can be more than one entry generated due to these attributes. The references are placed in a derivedFrom element.

Components

Component elements are used whenever the metric measurement contains additional information attributes that further describe the measurement. There are four such attributes that can be reported by all three types of metric measurements; the Supplemental-Types, Relative-Time, Hi-Res-Relative-Time, and Measurement-Status.

Supplemental Types

The Supplemental Types attribute contains a list of one or more partition-term code pairs. These define MDC codes that describe some property of the measurement. There will be one component element for each entry pair in the list. For example, the code MDC_MODALITY_SPOT used in the pulse oximeter specialization indicates that the measurement reported is a stable average. In contrast there is MDC_MODALITY_FAST and MDC_MODALITY_SLOW. The component elements are as populated as follows:

Observation.component element	entry	Additional Information
code.coding.code	68193	This is the MDC code for the Supplemental Types attribute
code.coding.system	urn:iso:std:iso:11073:10101	Indicates the MDC coding system
code.coding.display	optional but	Should contain the reference id MDC_ATTR_SUPPLEMENTAL_TYPES along with any other additional text
valueCodeableConcept.coding.system	urn:iso:std:iso:11073:10101	Indicates the MDC coding system
valueCodeableConcept.coding.code	the 32-bit MDC code	(partition) * 2¹⁶ + term code
valueCodeableConcept.coding.display	optional but	Should contain the reference id for the reported code along with any other additional text

Relative Time Stamp

The Relative-Time-Stamp attribute contains the time stamp of the measurement in units of ticks where each tick is 1/8th of a millisecond. When mapped to FHIR, it is converted to microseconds (multiplied by 125). This attribute is reported to audit the derivation of the Observation.effective[x] time stamp value. The component element is mapped as follows:

Observation.component element	entry	Additional Information
code.coding.code	67985	This is the MDC code for the Relative-Time-Stamp attribute
code.coding.system	urn:iso:std:iso:11073:10101	Indicates the MDC coding system
code.coding.display	optional but	Should contain the reference id MDC_ATTR_TIME_STAMP_REL along with any other additional text
valueQuantity.value	the value	This is relative time value scaled to microseconds
valueQuantity.unit	optional
valueQuantity.system	http://unitsofmeasure.org	Indicates the UCUM coding system
valueQuantity.code	shall be the code 'us' for microseconds

High Resolution Relative Time Stamp

The Hi-Res-Relative-Time-Stamp attribute contains the time stamp of the measurement in units of ticks where each tick is a microsecond. This attribute is reported as a means to audit the derivation of the Observation.effective[x] time stamp value. The component element is mapped as follows:

Observation.component element	entry	Additional Information
code.coding.code	68073	This is the MDC code for the Relative-Time-Stamp attribute
code.coding.system	urn:iso:std:iso:11073:10101	Indicates the MDC coding system
code.coding.display	optional but	Should contain the reference id MDC_ATTR_TIME_STAMP_REL_HI_RES along with any other additional text
valueQuantity.value	the value	This is relative time value scaled to microseconds
valueQuantity.unit	optional
valueQuantity.system	http://unitsofmeasure.org	Indicates the UCUM coding system
valueQuantity.code	shall be the code 'us' for microseconds

Measurement Status

The Measurement Status attribute is an ASN.1 16-BITs measurement used to report errors or other special conditions. It defines 11 events. Being events, only set bits are reported. The attribute reports one or more of the following conditions in the indicated Mder bit position:

invalid(0),
questionable(1),
not-available(2),
calibration-ongoing(3),
test-data(4),
demo-data(5),
validated-data(8)
early-indication(9)
msmt-ongoing(10),
msmt-value-exceed-boundaries(14),
msmt-state-ann-inhibited(15)

Though it is possible to have multiple bits simultaneously set, some combinations of set bits do not make sense and should not occur.

To report these cases in FHIR requires the use of three different elements. The interpretation codes are taken from the measurement status value set defined in the Point of Care implementation guide. The mapping is shown in the following table:

status Mder bit	ASN1 name	Observation element
0	invalid	dataAbsentReason.coding.code="error" http://hl7.org/fhir/ValueSet/data-absent-reason
1	questionable	interpretation.coding.system="http://hl7.org/fhir/uv/pocd/CodeSystem/measurement-status" interpretation.coding.code="questionable"
2	not-available	dataAbsentReason.coding.code="not-performed" dataAbsentReason.coding.system="http://hl7.org/fhir/ValueSet/data-absent-reason
3	calibration-ongoing	interpretation.coding.system="http://hl7.org/fhir/uv/pocd/CodeSystem/measurement-status" interpretation.coding.code="calibration-ongoing"
4	test-data	meta.security.coding.code="HTEST" meta.security.coding.system="http://hl7.org/fhir/ValueSet/security-labels"
5	demo-data	meta.security.coding.code="HTEST" meta.security.coding.system="http://hl7.org/fhir/ValueSet/security-labels"
8	validated-data	interpretation.coding.system="http://hl7.org/fhir/uv/pocd/CodeSystem/measurement-status" interpretation.coding.code="validated-data"
9	early-indication	interpretation.coding.system="http://hl7.org/fhir/uv/pocd/CodeSystem/measurement-status" interpretation.coding.code="early-indication"
10	msmt-ongoing	dataAbsentReason.coding.code="temp-unknown" dataAbsentReason.coding.system="http://hl7.org/fhir/ValueSet/data-absent-reason"
14	msmt-value-exceed-boundaries	interpretation.coding.system="http://hl7.org/fhir/uv/pocd/CodeSystem/measurement-status" interpretation.coding.code="in-alarm"
15	msmt-state-ann-inhibited	interpretation.coding.system="http://hl7.org/fhir/uv/pocd/CodeSystem/measurement-status" interpretation.coding.code="alarm-inhibited"

Note that a status field is reported in the Nu-Observed-Value and Enum-Observed-Value attributes. When these attributes are sent, the status field in the attribute replaces the Measurement-Status attribute should the PHD have sent both (which would seem unlikely).

The status field is also reported in the Compound-Nu-Observed-Value. In this case the status field applies only to the Observation.component. An overall Measurement-Status attribute may also be present. The Observation.component has its own dataAbsentReason and interpretation element. However it does not have a meta element. On the other hand it does not make sense to have one sub-value of a compound report test data while another does not. A compound measurement in 20601 is a single measurement taken as a whole. However it is possible that a sub-value fails in the measurement process thus an error can occur on one sub-value while the others succeed.