<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="http://ontariohealth.ca/fhir/StructureDefinition/ca-on-mha-profile-observation-born-in-canada" />
  <version value="1.0.0" />
  <name value="ObservationBornInCanada" />
  <status value="active" />
  <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">
      <path value="Observation" />
      <constraint>
        <key value="component-1" />
        <severity value="error" />
        <human value="&quot;Arrive In Canada&quot; must be completed if &quot;Born In Canada&quot; is false." />
        <expression value="(value.coding.system = 'http://snomed.info/sct' and value.coding.code = '373067005') = component.exists()" />
      </constraint>
    </element>
    <element id="Observation.meta">
      <path value="Observation.meta" />
      <min value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.meta.profile">
      <path value="Observation.meta.profile" />
      <min value="1" />
      <max value="1" />
      <fixedCanonical value="http://ontariohealth.ca/fhir/StructureDefinition/ca-on-mha-profile-observation-born-in-canada" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.status">
      <path value="Observation.status" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.category">
      <path value="Observation.category" />
      <min value="1" />
      <max value="1" />
      <mustSupport value="true" />
      <binding>
        <strength value="required" />
      </binding>
    </element>
    <element id="Observation.category.coding">
      <path value="Observation.category.coding" />
      <min value="1" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.category.coding.system">
      <path value="Observation.category.coding.system" />
      <min value="1" />
      <fixedUri value="http://terminology.hl7.org/CodeSystem/observation-category" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.category.coding.code">
      <path value="Observation.category.coding.code" />
      <min value="1" />
      <fixedCode value="social-history" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.category.coding.display">
      <path value="Observation.category.coding.display" />
      <min value="1" />
      <fixedString value="Social History" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.code">
      <path value="Observation.code" />
      <mustSupport value="true" />
      <binding>
        <strength value="required" />
        <valueSet value="http://ontariohealth.ca/fhir/ValueSet/sdohObservationCode|2.0.0" />
      </binding>
    </element>
    <element id="Observation.code.coding">
      <path value="Observation.code.coding" />
      <min value="1" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.code.coding.system">
      <path value="Observation.code.coding.system" />
      <min value="1" />
      <fixedUri value="http://snomed.info/sct" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.code.coding.code">
      <path value="Observation.code.coding.code" />
      <min value="1" />
      <fixedCode value="315398004" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.code.coding.display">
      <path value="Observation.code.coding.display" />
      <min value="1" />
      <fixedString value="Born in Canada" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.subject">
      <path value="Observation.subject" />
      <min value="1" />
      <type>
        <code value="Reference" />
        <targetProfile value="http://ontariohealth.ca/fhir/StructureDefinition/ca-on-mha-profile-patient" />
      </type>
    </element>
    <element id="Observation.subject.reference">
      <path value="Observation.subject.reference" />
      <min value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.effective[x]">
      <path value="Observation.effective[x]" />
      <min value="1" />
      <type>
        <code value="dateTime" />
      </type>
      <constraint>
        <key value="sdoh-born-in-canada-inv-1" />
        <severity value="error" />
        <human value="Effective Date must be a full date (YYYY-MM-DD)" />
        <expression value="$this.toString().matches('^[0-9]{4}-(0[1-9]|1[0-2])-(0[1-9]|[12][0-9]|3[01])$')" />
      </constraint>
      <mustSupport value="true" />
    </element>
    <element id="Observation.value[x]">
      <path value="Observation.value[x]" />
      <type>
        <code value="CodeableConcept" />
      </type>
      <mustSupport value="true" />
      <binding>
        <strength value="required" />
        <description value="Response options for - Were you born in Canada?" />
        <valueSet value="http://ontariohealth.ca/fhir/ValueSet/mha-bornInCanadaResponse" />
      </binding>
    </element>
    <element id="Observation.value[x].coding">
      <path value="Observation.value[x].coding" />
      <min value="1" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.value[x].coding.system">
      <path value="Observation.value[x].coding.system" />
      <min value="1" />
      <fixedUri value="http://snomed.info/sct" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.value[x].coding.code">
      <path value="Observation.value[x].coding.code" />
      <min value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.value[x].coding.display">
      <path value="Observation.value[x].coding.display" />
      <min value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.dataAbsentReason">
      <path value="Observation.dataAbsentReason" />
      <mustSupport value="true" />
      <binding>
        <strength value="required" />
        <description value="codes that indicate the reason the value is missing" />
        <valueSet value="http://ontariohealth.ca/fhir/ValueSet/mha-sdoh-data-absent-reason" />
      </binding>
    </element>
    <element id="Observation.dataAbsentReason.coding">
      <path value="Observation.dataAbsentReason.coding" />
      <min value="1" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.dataAbsentReason.coding.system">
      <path value="Observation.dataAbsentReason.coding.system" />
      <min value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.dataAbsentReason.coding.code">
      <path value="Observation.dataAbsentReason.coding.code" />
      <min value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.dataAbsentReason.coding.display">
      <path value="Observation.dataAbsentReason.coding.display" />
      <min value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.component">
      <path value="Observation.component" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.component.code">
      <path value="Observation.component.code" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.component.code.coding">
      <path value="Observation.component.code.coding" />
      <min value="1" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.component.code.text">
      <path value="Observation.component.code.text" />
      <min value="1" />
      <fixedString value="Arrive In Canada" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.component.value[x]">
      <path value="Observation.component.value[x]" />
      <type>
        <code value="dateTime" />
      </type>
      <mustSupport value="true" />
    </element>
  </differential>
</StructureDefinition>