<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="base-composition-v1" />
  <url value="http://hl7.org.au/fhir/StructureDefinition/base-composition-v1" />
  <version value="1.1.0" />
  <name value="Base Composition (discussion)" />
  <title value="Base Composition (discussion)" />
  <status value="draft" />
  <date value="2018-10-03" />
  <publisher value="Health Level Seven Australia (Patient Administration WG)" />
  <description value="base composition for documents" />
  <fhirVersion value="3.0.1" />
  <kind value="resource" />
  <abstract value="false" />
  <type value="Composition" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Composition" />
  <derivation value="constraint" />
  <differential>
    <element>
      <path value="Composition" />
    </element>
    <element>
      <path value="Composition.identifier" />
      <min value="1" />
      <mapping>
        <identity value="scs-name" />
        <map value="Document Instance Identifier" />
      </mapping>
    </element>
    <element>
      <path value="Composition.subject" />
      <type>
        <code value="Reference" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Patient" />
      </type>
    </element>
    <element>
      <path value="Composition.author" />
      <type>
        <code value="Reference" />
        <targetProfile value="http://hl7.org.au/fhir/StructureDefinition/dh-Practitioner-base" />
      </type>
    </element>
    <element>
      <path value="Composition.title" />
      <defaultValueString value="Shared Health Summary" />
    </element>
    <element>
      <path value="Composition.confidentiality" />
      <min value="1" />
      <fixedCode value="N" />
    </element>
    <element>
      <path value="Composition.attester" />
      <min value="1" />
      <max value="1" />
    </element>
    <element>
      <path value="Composition.attester.mode" />
      <max value="1" />
      <fixedCode value="legal" />
    </element>
    <element>
      <path value="Composition.attester.time" />
      <min value="1" />
      <mapping>
        <identity value="scs-name" />
        <map value="DateTime Attested" />
      </mapping>
    </element>
    <element>
      <path value="Composition.custodian" />
      <min value="1" />
    </element>
  </differential>
</StructureDefinition>