<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="ed1c4e77-ecaf-49d8-970e-4d8640d686b3" />
  <meta>
    <lastUpdated value="2019-03-12T19:02:58.1136823+00:00" />
  </meta>
  <url value="http://ehealthontario.ca/fhir/StructureDefinition/Attachment" />
  <name value="Attachment" />
  <status value="draft" />
  <date value="2019-03-12T19:02:57.9188615+00:00" />
  <description value="Extension 'data-subtype' is added to attachment datatype which used in Observation and ObservationMicrobiology profiles" />
  <fhirVersion value="3.0.1" />
  <kind value="complex-type" />
  <abstract value="false" />
  <type value="Attachment" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Attachment" />
  <derivation value="constraint" />
  <differential>
    <element id="Attachment.extension">
      <path value="Attachment.extension" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <rules value="open" />
      </slicing>
    </element>
    <element id="Attachment.extension:data-subtype">
      <path value="Attachment.extension" />
      <sliceName value="data-subtype" />
      <max value="1" />
      <type>
        <code value="Extension" />
        <profile value="http://ehealthontario.ca/fhir/StructureDefinition/ca-on-lab-ext-subtype" />
      </type>
      <mustSupport value="true" />
    </element>
    <element id="Attachment.extension:data-subtype.id">
      <path value="Attachment.extension.id" />
      <mustSupport value="false" />
    </element>
    <element id="Attachment.extension:data-subtype.value[x]:valueCoding">
      <path value="Attachment.extension.valueCoding" />
      <sliceName value="valueCoding" />
      <type>
        <code value="Coding" />
      </type>
      <mustSupport value="false" />
    </element>
    <element id="Attachment.contentType">
      <path value="Attachment.contentType" />
      <mustSupport value="true" />
    </element>
    <element id="Attachment.data">
      <path value="Attachment.data" />
      <mustSupport value="true" />
    </element>
  </differential>
</StructureDefinition>