<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="observation-tobaccouse-ca-ps" />
  <url value="http://fhir.infoway-inforoute.ca/io/psca/StructureDefinition/observation-tobaccouse-ca-ps" />
  <version value="2.2.0" />
  <name value="ObservationTobaccoUsePSCA" />
  <title value="SHx Observation: Tobacco Use (PS-CA)" />
  <status value="draft" />
  <experimental value="false" />
  <date value="2022-07-28T01:23:00-08:00" />
  <description value="This profile represents the constraints applied to the Observation resource by the PS-CA project to represent Tobacco use assessment in a patient summary. It allows for cross-border and cross-jurisdiction sharing of Social History Information." />
  <copyright value="Copyright © 2024+ 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" />
        </extension>
        <extension url="actor">
          <valueCanonical value="http://fhir.infoway-inforoute.ca/io/psca/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/io/psca/ActorDefinition/consumer" />
        </extension>
      </extension>
      <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
        <extension url="code">
          <valueCode value="SHALL:handle" />
        </extension>
        <extension url="actor">
          <valueCanonical value="http://fhir.infoway-inforoute.ca/io/psca/ActorDefinition/consumer" />
        </extension>
      </extension>
      <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
        <extension url="code">
          <valueCode value="SHOULD:display" />
        </extension>
        <extension url="actor">
          <valueCanonical value="http://fhir.infoway-inforoute.ca/io/psca/ActorDefinition/consumer" />
        </extension>
      </extension>
      <path value="Observation.status" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.code">
      <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
        <extension url="code">
          <valueCode value="SHALL:populate" />
        </extension>
        <extension url="actor">
          <valueCanonical value="http://fhir.infoway-inforoute.ca/io/psca/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/io/psca/ActorDefinition/consumer" />
        </extension>
      </extension>
      <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
        <extension url="code">
          <valueCode value="SHALL:handle" />
        </extension>
        <extension url="actor">
          <valueCanonical value="http://fhir.infoway-inforoute.ca/io/psca/ActorDefinition/consumer" />
        </extension>
      </extension>
      <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
        <extension url="code">
          <valueCode value="SHOULD:display" />
        </extension>
        <extension url="actor">
          <valueCanonical value="http://fhir.infoway-inforoute.ca/io/psca/ActorDefinition/consumer" />
        </extension>
      </extension>
      <path value="Observation.code" />
      <comment value="This is a fixed pattern that enforces the presence of a globally shared code to represent this concept in use by IPS-UV, CA Baseline, US Core, COVID Logica IG, and other national FHIR Implementation Guides. Additional codings can be supplied, but at least one of them must follow the pattern below." />
      <patternCodeableConcept>
        <coding>
          <system value="http://loinc.org" />
          <code value="72166-2" />
        </coding>
      </patternCodeableConcept>
      <mustSupport value="true" />
    </element>
    <element id="Observation.subject">
      <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
        <extension url="code">
          <valueCode value="SHALL:populate" />
        </extension>
        <extension url="actor">
          <valueCanonical value="http://fhir.infoway-inforoute.ca/io/psca/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/io/psca/ActorDefinition/consumer" />
        </extension>
      </extension>
      <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
        <extension url="code">
          <valueCode value="SHALL:handle" />
        </extension>
        <extension url="actor">
          <valueCanonical value="http://fhir.infoway-inforoute.ca/io/psca/ActorDefinition/consumer" />
        </extension>
      </extension>
      <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
        <extension url="code">
          <valueCode value="SHOULD:display" />
        </extension>
        <extension url="actor">
          <valueCanonical value="http://fhir.infoway-inforoute.ca/io/psca/ActorDefinition/consumer" />
        </extension>
      </extension>
      <path value="Observation.subject" />
      <min value="1" />
      <type>
        <code value="Reference" />
        <targetProfile value="http://fhir.infoway-inforoute.ca/io/psca/StructureDefinition/patient-ca-ps" />
      </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" />
        </extension>
        <extension url="actor">
          <valueCanonical value="http://fhir.infoway-inforoute.ca/io/psca/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/io/psca/ActorDefinition/consumer" />
        </extension>
      </extension>
      <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
        <extension url="code">
          <valueCode value="SHALL:handle" />
        </extension>
        <extension url="actor">
          <valueCanonical value="http://fhir.infoway-inforoute.ca/io/psca/ActorDefinition/consumer" />
        </extension>
      </extension>
      <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
        <extension url="code">
          <valueCode value="SHOULD:display" />
        </extension>
        <extension url="actor">
          <valueCanonical value="http://fhir.infoway-inforoute.ca/io/psca/ActorDefinition/consumer" />
        </extension>
      </extension>
      <path value="Observation.subject.reference" />
      <min value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.effective[x]">
      <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
        <extension url="code">
          <valueCode value="SHALL:populate" />
        </extension>
        <extension url="actor">
          <valueCanonical value="http://fhir.infoway-inforoute.ca/io/psca/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/io/psca/ActorDefinition/consumer" />
        </extension>
      </extension>
      <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
        <extension url="code">
          <valueCode value="SHALL:handle" />
        </extension>
        <extension url="actor">
          <valueCanonical value="http://fhir.infoway-inforoute.ca/io/psca/ActorDefinition/consumer" />
        </extension>
      </extension>
      <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
        <extension url="code">
          <valueCode value="SHOULD:display" />
        </extension>
        <extension url="actor">
          <valueCanonical value="http://fhir.infoway-inforoute.ca/io/psca/ActorDefinition/consumer" />
        </extension>
      </extension>
      <path value="Observation.effective[x]" />
      <comment value="Datatype is constrained to dateTime. If no dateTime is available, the dataAbsentReason extension must be used" />
      <min value="1" />
      <type>
        <code value="dateTime" />
      </type>
      <mustSupport value="true" />
    </element>
    <element id="Observation.value[x]">
      <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
        <extension url="code">
          <valueCode value="SHALL:populate" />
        </extension>
        <extension url="actor">
          <valueCanonical value="http://fhir.infoway-inforoute.ca/io/psca/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/io/psca/ActorDefinition/consumer" />
        </extension>
      </extension>
      <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
        <extension url="code">
          <valueCode value="SHALL:handle" />
        </extension>
        <extension url="actor">
          <valueCanonical value="http://fhir.infoway-inforoute.ca/io/psca/ActorDefinition/consumer" />
        </extension>
      </extension>
      <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
        <extension url="code">
          <valueCode value="SHOULD:display" />
        </extension>
        <extension url="actor">
          <valueCanonical value="http://fhir.infoway-inforoute.ca/io/psca/ActorDefinition/consumer" />
        </extension>
      </extension>
      <path value="Observation.value[x]" />
      <slicing>
        <discriminator>
          <type value="type" />
          <path value="$this" />
        </discriminator>
        <ordered value="false" />
        <rules value="open" />
      </slicing>
      <min value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.value[x]:valueCodeableConcept">
      <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
        <extension url="code">
          <valueCode value="SHALL:able-to-populate" />
        </extension>
        <extension url="actor">
          <valueCanonical value="http://fhir.infoway-inforoute.ca/io/psca/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/io/psca/ActorDefinition/consumer" />
        </extension>
      </extension>
      <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
        <extension url="code">
          <valueCode value="SHOULD:handle" />
        </extension>
        <extension url="actor">
          <valueCanonical value="http://fhir.infoway-inforoute.ca/io/psca/ActorDefinition/consumer" />
        </extension>
      </extension>
      <extension url="http://hl7.org/fhir/StructureDefinition/obligation">
        <extension url="code">
          <valueCode value="SHOULD:display" />
        </extension>
        <extension url="actor">
          <valueCanonical value="http://fhir.infoway-inforoute.ca/io/psca/ActorDefinition/consumer" />
        </extension>
      </extension>
      <path value="Observation.value[x]" />
      <sliceName value="valueCodeableConcept" />
      <comment value="Datatype is constrained to CodeableConcept. If no CodeableConcept (text or terminology) is available, the dataAbsentReason extension must be used." />
      <min value="0" />
      <max value="1" />
      <type>
        <code value="CodeableConcept" />
        <profile value="http://fhir.infoway-inforoute.ca/io/psca/StructureDefinition/CodeableConcept-ca-ps" />
      </type>
      <mustSupport value="true" />
      <binding>
        <strength value="preferred" />
        <valueSet value="http://hl7.org/fhir/uv/ips/ValueSet/current-smoking-status-uv-ips" />
      </binding>
    </element>
    <element id="Observation.component">
      <path value="Observation.component" />
      <max value="0" />
    </element>
  </differential>
</StructureDefinition>