<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="https://fhir.synapxe.sg/StructureDefinition/profile-documentreference" />
  <name value="DocumentReference" />
  <status value="active" />
  <fhirVersion value="5.0.0" />
  <kind value="resource" />
  <abstract value="false" />
  <type value="DocumentReference" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/DocumentReference" />
  <derivation value="constraint" />
  <differential>
    <element id="DocumentReference.identifier">
      <path value="DocumentReference.identifier" />
      <type>
        <code value="Identifier" />
        <profile value="https://fhir.synapxe.sg/StructureDefinition/profile-identifier" />
      </type>
    </element>
    <element id="DocumentReference.modality">
      <path value="DocumentReference.modality" />
      <type>
        <code value="CodeableConcept" />
        <profile value="https://fhir.synapxe.sg/StructureDefinition/profile-codeableconcept" />
      </type>
    </element>
    <element id="DocumentReference.type">
      <path value="DocumentReference.type" />
      <min value="1" />
      <type>
        <code value="CodeableConcept" />
        <profile value="https://fhir.synapxe.sg/StructureDefinition/profile-codeableconcept" />
      </type>
    </element>
    <element id="DocumentReference.type.coding.version">
      <path value="DocumentReference.type.coding.version" />
      <max value="0" />
    </element>
    <element id="DocumentReference.category">
      <path value="DocumentReference.category" />
      <type>
        <code value="CodeableConcept" />
        <profile value="https://fhir.synapxe.sg/StructureDefinition/profile-codeableconcept" />
      </type>
    </element>
    <element id="DocumentReference.subject.id">
      <path value="DocumentReference.subject.id" />
      <max value="0" />
    </element>
    <element id="DocumentReference.subject.reference">
      <path value="DocumentReference.subject.reference" />
      <max value="0" />
    </element>
    <element id="DocumentReference.subject.type">
      <path value="DocumentReference.subject.type" />
      <min value="1" />
      <fixedUri value="Patient" />
    </element>
    <element id="DocumentReference.subject.identifier">
      <path value="DocumentReference.subject.identifier" />
      <min value="1" />
    </element>
    <element id="DocumentReference.subject.identifier.id">
      <path value="DocumentReference.subject.identifier.id" />
      <max value="0" />
    </element>
    <element id="DocumentReference.subject.identifier.use">
      <path value="DocumentReference.subject.identifier.use" />
      <max value="0" />
    </element>
    <element id="DocumentReference.subject.identifier.type">
      <path value="DocumentReference.subject.identifier.type" />
      <max value="0" />
    </element>
    <element id="DocumentReference.subject.identifier.system">
      <path value="DocumentReference.subject.identifier.system" />
      <min value="1" />
      <fixedUri value="https://fhir.synapxe.sg/NamingSystem/nric" />
    </element>
    <element id="DocumentReference.subject.identifier.value">
      <path value="DocumentReference.subject.identifier.value" />
      <min value="1" />
    </element>
    <element id="DocumentReference.subject.identifier.period">
      <path value="DocumentReference.subject.identifier.period" />
      <max value="0" />
    </element>
    <element id="DocumentReference.subject.identifier.assigner">
      <path value="DocumentReference.subject.identifier.assigner" />
      <max value="0" />
    </element>
    <element id="DocumentReference.subject.display">
      <path value="DocumentReference.subject.display" />
      <max value="0" />
    </element>
    <element id="DocumentReference.context">
      <path value="DocumentReference.context" />
      <type>
        <code value="Reference" />
        <targetProfile value="https://fhir.synapxe.sg/StructureDefinition/profile-patient" />
        <targetProfile value="https://fhir.synapxe.sg/StructureDefinition/profile-encounter" />
      </type>
    </element>
    <element id="DocumentReference.event.concept">
      <path value="DocumentReference.event.concept" />
      <type>
        <code value="CodeableConcept" />
        <profile value="https://fhir.synapxe.sg/StructureDefinition/profile-codeableconcept" />
      </type>
    </element>
    <element id="DocumentReference.bodySite.concept">
      <path value="DocumentReference.bodySite.concept" />
      <type>
        <code value="CodeableConcept" />
        <profile value="https://fhir.synapxe.sg/StructureDefinition/profile-codeableconcept" />
      </type>
    </element>
    <element id="DocumentReference.facilityType">
      <path value="DocumentReference.facilityType" />
      <type>
        <code value="CodeableConcept" />
        <profile value="https://fhir.synapxe.sg/StructureDefinition/profile-codeableconcept" />
      </type>
    </element>
    <element id="DocumentReference.practiceSetting">
      <path value="DocumentReference.practiceSetting" />
      <type>
        <code value="CodeableConcept" />
        <profile value="https://fhir.synapxe.sg/StructureDefinition/profile-codeableconcept" />
      </type>
    </element>
    <element id="DocumentReference.author">
      <path value="DocumentReference.author" />
      <max value="1" />
      <type>
        <code value="Reference" />
        <targetProfile value="https://fhir.synapxe.sg/StructureDefinition/profile-practitioner" />
        <targetProfile value="https://fhir.synapxe.sg/StructureDefinition/profile-organization" />
      </type>
    </element>
    <element id="DocumentReference.attester.mode">
      <path value="DocumentReference.attester.mode" />
      <type>
        <code value="CodeableConcept" />
        <profile value="https://fhir.synapxe.sg/StructureDefinition/profile-codeableconcept" />
      </type>
    </element>
    <element id="DocumentReference.custodian">
      <path value="DocumentReference.custodian" />
      <type>
        <code value="Reference" />
        <targetProfile value="https://fhir.synapxe.sg/StructureDefinition/profile-organization" />
      </type>
    </element>
    <element id="DocumentReference.relatesTo.code">
      <path value="DocumentReference.relatesTo.code" />
      <type>
        <code value="CodeableConcept" />
        <profile value="https://fhir.synapxe.sg/StructureDefinition/profile-codeableconcept" />
      </type>
    </element>
    <element id="DocumentReference.securityLabel">
      <path value="DocumentReference.securityLabel" />
      <type>
        <code value="CodeableConcept" />
        <profile value="https://fhir.synapxe.sg/StructureDefinition/profile-codeableconcept" />
      </type>
    </element>
    <element id="DocumentReference.content.id">
      <path value="DocumentReference.content.id" />
      <max value="0" />
    </element>
    <element id="DocumentReference.content.extension">
      <path value="DocumentReference.content.extension" />
      <max value="0" />
    </element>
    <element id="DocumentReference.content.modifierExtension">
      <path value="DocumentReference.content.modifierExtension" />
      <max value="0" />
    </element>
    <element id="DocumentReference.content.attachment">
      <path value="DocumentReference.content.attachment" />
      <type>
        <code value="Attachment" />
        <profile value="https://fhir.synapxe.sg/StructureDefinition/profile-attachment" />
      </type>
    </element>
    <element id="DocumentReference.content.profile">
      <path value="DocumentReference.content.profile" />
      <max value="0" />
    </element>
  </differential>
</StructureDefinition>