<status value="active" /> <experimental value="false" /> <date value="2025-08-27" /> <publisher value="Canada Health Infoway" /> <contact> <name value="National Standards Release Centre" /> <telecom> <system value="url" /> <value value="http://www.infoway-inforoute.ca" /> </telecom> <telecom> <system value="email" /> <value value="standards@infoway-inforoute.ca" /> </telecom> </contact> <description value="This profile applies constraints to the Observation resource for CA Core+ to support laboratory test results in the pan-Canadian context." /> <jurisdiction> <coding> <system value="urn:iso:std:iso:3166" /> <code value="CA" /> </coding> </jurisdiction> <copyright value="Copyright © 2025+ Canada Health Infoway. All rights reserved. [Terms of Use and License Agreements](https://ic.infoway-inforoute.ca/en/about/tou). [Privacy Policy](https://www.infoway-inforoute.ca/en/legal/privacy-policy)." /> <fhirVersion value="4.0.1" /> <kind value="resource" /> <abstract value="false" /> <type value="Observation" /> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Observation" /> <derivation value="constraint" /> <differential> <element id="Observation.status"> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-display-hint"> <valueString value="default: final" /> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/obligation"> <extension url="code"> <valueCode value="SHALL:populate-if-known" /> </extension> <extension url="actor"> <valueCanonical value="http://fhir.infoway-inforoute.ca/ca-core/ActorDefinition/producer" /> </extension> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/obligation"> <extension url="code"> <valueCode value="SHALL:no-error" /> </extension> <extension url="actor"> <valueCanonical value="http://fhir.infoway-inforoute.ca/ca-core/ActorDefinition/consumer" /> </extension> </extension> <path value="Observation.status" /> <mustSupport value="true" /> </element> <element id="Observation.category"> <path value="Observation.category" /> <slicing> <discriminator> <type value="pattern" /> <path value="$this" /> </discriminator> <rules value="open" /> </slicing> <definition value="A code that classifies the general type of observation being made. In this profile, fixed to "laboratory"." /> <comment value=""laboratory" includes laboratory medicine and pathology" /> <min value="1" /> <type> <code value="CodeableConcept" /> <profile value="http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/codeableconcept-ca-core" /> </type> </element> <element id="Observation.category:laboratory"> <extension url="http://hl7.org/fhir/StructureDefinition/obligation"> <extension url="code"> <valueCode value="SHALL:populate-if-known" /> </extension> <extension url="actor"> <valueCanonical value="http://fhir.infoway-inforoute.ca/ca-core/ActorDefinition/producer" /> </extension> </extension> <path value="Observation.category" /> <sliceName value="laboratory" /> <min value="1" /> <max value="1" /> <patternCodeableConcept> <coding> <system value="http://terminology.hl7.org/CodeSystem/observation-category" /> <code value="laboratory" /> </coding> </patternCodeableConcept> <mustSupport value="true" /> </element> <element id="Observation.code"> <extension url="http://hl7.org/fhir/StructureDefinition/obligation"> <extension url="code"> <valueCode value="SHALL:populate-if-known" /> </extension> <extension url="actor"> <valueCanonical value="http://fhir.infoway-inforoute.ca/ca-core/ActorDefinition/producer" /> </extension> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/obligation"> <extension url="code"> <valueCode value="SHALL:no-error" /> </extension> <extension url="actor"> <valueCanonical value="http://fhir.infoway-inforoute.ca/ca-core/ActorDefinition/consumer" /> </extension> </extension> <path value="Observation.code" /> <definition value="Describes what was observed. Sometimes this is called the observation "name". In this profile this code represents either a simple laboratory test or a single pathology examination or a laboratory or pathology study with multiple child observations." /> <comment value="In the context of this profile, when the observation plays the role of a grouper of member sub-observations, the code represent the group (for instance a panel code). In case no code is available, at least a text shall be provided. Work is underway to define the pan-Canadian terminology that will be preferred and/or socialized for this element" /> <type> <code value="CodeableConcept" /> <profile value="http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/codeableconcept-ca-core" /> </type> <mustSupport value="true" /> <binding> <extension url="http://hl7.org/fhir/tools/StructureDefinition/additional-binding"> <extension url="purpose"> <valueCode value="candidate" /> </extension> <extension url="valueSet"> <valueCanonical value="http://hl7.org/fhir/uv/ips/ValueSet/results-laboratory-pathology-observations-uv-ips" /> </extension> <extension url="documentation"> <valueMarkdown value="Laboratory/Pathology Results Valueset from IPS" /> </extension> </extension> <strength value="example" /> <valueSet value="https://fhir.infoway-inforoute.ca/ValueSet/pCLOCD" /> </binding> </element> <element id="Observation.subject"> <extension url="http://hl7.org/fhir/StructureDefinition/obligation"> <extension url="code"> <valueCode value="SHALL:populate-if-known" /> </extension> <extension url="actor"> <valueCanonical value="http://fhir.infoway-inforoute.ca/ca-core/ActorDefinition/producer" /> </extension> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/obligation"> <extension url="code"> <valueCode value="SHALL:no-error" /> </extension> <extension url="actor"> <valueCanonical value="http://fhir.infoway-inforoute.ca/ca-core/ActorDefinition/consumer" /> </extension> </extension> <path value="Observation.subject" /> <min value="1" /> <type> <code value="Reference" /> <targetProfile value="http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/patient-ca-core" /> </type> <mustSupport value="true" /> </element> <element id="Observation.subject.reference"> <extension url="http://hl7.org/fhir/StructureDefinition/obligation"> <extension url="code"> <valueCode value="SHALL:populate-if-known" /> </extension> <extension url="actor"> <valueCanonical value="http://fhir.infoway-inforoute.ca/ca-core/ActorDefinition/producer" /> </extension> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/obligation"> <extension url="code"> <valueCode value="SHALL:no-error" /> </extension> <extension url="actor"> <valueCanonical value="http://fhir.infoway-inforoute.ca/ca-core/ActorDefinition/consumer" /> </extension> </extension> <path value="Observation.subject.reference" /> <min value="1" /> <mustSupport value="true" /> </element> <element id="Observation.encounter"> <path value="Observation.encounter" /> <type> <code value="Reference" /> <targetProfile value="http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/encounter-ca-core" /> </type> </element> <element id="Observation.effective[x]"> <extension url="http://hl7.org/fhir/StructureDefinition/obligation"> <extension url="code"> <valueCode value="SHALL:populate-if-known" /> </extension> <extension url="actor"> <valueCanonical value="http://fhir.infoway-inforoute.ca/ca-core/ActorDefinition/producer" /> </extension> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/obligation"> <extension url="code"> <valueCode value="SHALL:no-error" /> </extension> <extension url="actor"> <valueCanonical value="http://fhir.infoway-inforoute.ca/ca-core/ActorDefinition/consumer" /> </extension> </extension> <path value="Observation.effective[x]" /> <min value="1" /> <mustSupport value="true" /> </element> <element id="Observation.performer"> <extension url="http://hl7.org/fhir/StructureDefinition/obligation"> <extension url="code"> <valueCode value="SHALL:populate-if-known" /> </extension> <extension url="actor"> <valueCanonical value="http://fhir.infoway-inforoute.ca/ca-core/ActorDefinition/producer" /> </extension> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/obligation"> <extension url="code"> <valueCode value="SHALL:no-error" /> </extension> <extension url="actor"> <valueCanonical value="http://fhir.infoway-inforoute.ca/ca-core/ActorDefinition/consumer" /> </extension> </extension> <path value="Observation.performer" /> <min value="1" /> <type> <code value="Reference" /> <targetProfile value="http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/practitioner-ca-core" /> <targetProfile value="http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/practitionerRole-ca-core" /> <targetProfile value="http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/organization-ca-core" /> <targetProfile value="http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/patient-ca-core" /> <targetProfile value="http://hl7.org/fhir/StructureDefinition/CareTeam" /> <targetProfile value="http://hl7.org/fhir/StructureDefinition/RelatedPerson" /> </type> <mustSupport value="true" /> </element> <element id="Observation.value[x]"> <path value="Observation.value[x]" /> <slicing> <discriminator> <type value="type" /> <path value="$this" /> </discriminator> <ordered value="false" /> <rules value="open" /> </slicing> </element> <element id="Observation.value[x]:valueString"> <path value="Observation.value[x]" /> <sliceName value="valueString" /> <min value="0" /> <max value="1" /> <type> <code value="string" /> </type> </element> <element id="Observation.value[x]:valueQuantity"> <path value="Observation.value[x]" /> <sliceName value="valueQuantity" /> <min value="0" /> <max value="1" /> <type> <code value="Quantity" /> </type> </element> <element id="Observation.value[x]:valueCodeableConcept"> <extension url="http://hl7.org/fhir/StructureDefinition/obligation"> <extension url="code"> <valueCode value="SHALL:populate-if-known" /> </extension> <extension url="actor"> <valueCanonical value="http://fhir.infoway-inforoute.ca/ca-core/ActorDefinition/producer" /> </extension> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/obligation"> <extension url="code"> <valueCode value="SHALL:no-error" /> </extension> <extension url="actor"> <valueCanonical value="http://fhir.infoway-inforoute.ca/ca-core/ActorDefinition/consumer" /> </extension> </extension> <path value="Observation.value[x]" /> <sliceName value="valueCodeableConcept" /> <comment value="Work is underway to define the pan-Canadian terminology that will be preferred and/or socialized for this element." /> <min value="0" /> <max value="1" /> <type> <code value="CodeableConcept" /> <profile value="http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/codeableconcept-ca-core" /> </type> <mustSupport value="true" /> <binding> <strength value="example" /> <description value="Work is underway to define the pan-Canadian terminology that will be preferred and/or socialized for this element" /> <valueSet value="http://hl7.org/fhir/uv/ips/ValueSet/results-coded-values-laboratory-pathology-uv-ips" /> </binding> </element> <element id="Observation.interpretation"> <path value="Observation.interpretation" /> <type> <code value="CodeableConcept" /> <profile value="http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/codeableconcept-ca-core" /> </type> </element> <element id="Observation.hasMember"> <path value="Observation.hasMember" /> <definition value="A reference to another Observation profiled by Observation-results-laboratory-pathology-ca-core. The target observation (for instance an individual test member of a panel) is considered as a sub-observation of the current one, which plays the role of a grouper." /> <comment value="This element is used in the context of the patient summary when there is a need to group a collection of observations, because they belong to the same panel, or because they share a common interpretation comment, or a common media attachment (illustrative image or graph). In these cases, the current observation is the grouper, and its set of sub-observations are related observations using the type "has-member". For a discussion on the ways Observations can be assembled in groups together see [Observation Grouping](http://hl7.org/fhir/observation.html#obsgrouping)." /> <type> <code value="Reference" /> <targetProfile value="http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/observation-laboratory-Pathology-ca-core" /> </type> </element> </differential> </StructureDefinition>