<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="https://fhir.synapxe.sg/StructureDefinition/profile-medicalcertificate" />
  <name value="MedicalCertificate" />
  <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.extension:lightDuty">
      <path value="DocumentReference.extension" />
      <sliceName value="lightDuty" />
      <max value="1" />
      <type>
        <code value="Extension" />
        <profile value="https://fhir.synapxe.sg/StructureDefinition/ext-lightDuty" />
      </type>
    </element>
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      <path value="DocumentReference.identifier" />
      <min value="1" />
      <max value="1" />
      <type>
        <code value="Identifier" />
        <profile value="https://fhir.synapxe.sg/StructureDefinition/profile-identifier" />
      </type>
    </element>
    <element id="DocumentReference.identifier.system">
      <path value="DocumentReference.identifier.system" />
      <fixedUri value="https://fhir.synapxe.sg/NamingSystem/mc-no" />
    </element>
    <element id="DocumentReference.version">
      <path value="DocumentReference.version" />
      <max value="0" />
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    <element id="DocumentReference.basedOn">
      <path value="DocumentReference.basedOn" />
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    <element id="DocumentReference.modality">
      <path value="DocumentReference.modality" />
      <max value="0" />
    </element>
    <element id="DocumentReference.type">
      <path value="DocumentReference.type" />
      <short value="Type of medicate certificate" />
      <min value="1" />
      <type>
        <code value="CodeableConcept" />
        <profile value="https://fhir.synapxe.sg/StructureDefinition/profile-codeableconcept" />
      </type>
    </element>
    <element id="DocumentReference.category">
      <path value="DocumentReference.category" />
      <max value="0" />
    </element>
    <element id="DocumentReference.subject">
      <path value="DocumentReference.subject" />
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    <element id="DocumentReference.context">
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    <element id="DocumentReference.event">
      <path value="DocumentReference.event" />
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    </element>
    <element id="DocumentReference.bodySite">
      <path value="DocumentReference.bodySite" />
      <max value="0" />
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    <element id="DocumentReference.facilityType">
      <path value="DocumentReference.facilityType" />
      <max value="0" />
    </element>
    <element id="DocumentReference.practiceSetting">
      <path value="DocumentReference.practiceSetting" />
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    </element>
    <element id="DocumentReference.period">
      <path value="DocumentReference.period" />
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      <path value="DocumentReference.period.id" />
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      <path value="DocumentReference.period.end" />
      <min value="1" />
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    <element id="DocumentReference.date">
      <path value="DocumentReference.date" />
      <max value="0" />
    </element>
    <element id="DocumentReference.author">
      <path value="DocumentReference.author" />
      <min value="1" />
      <max value="1" />
      <type>
        <code value="Reference" />
        <targetProfile value="https://fhir.synapxe.sg/StructureDefinition/profile-practitioner" />
      </type>
    </element>
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      <path value="DocumentReference.author.id" />
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    <element id="DocumentReference.author.type">
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      <fixedUri value="Practitioner" />
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      <type>
        <code value="Identifier" />
        <profile value="https://fhir.synapxe.sg/StructureDefinition/profile-identifier" />
      </type>
    </element>
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      <max value="0" />
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    <element id="DocumentReference.custodian">
      <path value="DocumentReference.custodian" />
      <max value="0" />
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    <element id="DocumentReference.relatesTo">
      <path value="DocumentReference.relatesTo" />
      <max value="0" />
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    <element id="DocumentReference.description">
      <path value="DocumentReference.description" />
      <max value="0" />
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      <max value="0" />
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    <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>