<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 structured documentation of alcohol use in the pan-Canadian context. This profile is representative of the Alcohol use Status in CACDI." /> <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.category"> <path value="Observation.category" /> <type> <code value="CodeableConcept" /> <profile value="http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/codeableconcept-ca-core" /> </type> </element> <element id="Observation.code"> <path value="Observation.code" /> <type> <code value="CodeableConcept" /> <profile value="http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/codeableconcept-ca-core" /> </type> <patternCodeableConcept> <coding> <system value="http://loinc.org" /> <code value="74013-4" /> </coding> </patternCodeableConcept> </element> <element id="Observation.code.coding.display"> <path value="Observation.code.coding.display" /> <comment value="This LOINC Code has a display value of "Alcoholic drinks per day". Display values are not fixed to prevent errors when using this profile to validate a resource instance in a multilingual context or where the display may be different from its source." /> </element> <element id="Observation.subject"> <path value="Observation.subject" /> <type> <code value="Reference" /> <targetProfile value="http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/patient-ca-core" /> </type> </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.value[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.value[x]" /> <type> <code value="Quantity" /> </type> <mustSupport value="true" /> </element> <element id="Observation.component"> <path value="Observation.component" /> <max value="0" /> </element> </differential> </StructureDefinition>