<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="dbdca668-70ed-4db4-b42c-689a6d68c661" />
  <meta>
    <lastUpdated value="2021-06-08T12:36:41.605+00:00" />
  </meta>
  <url value="https://fhir.mhn.asia/emr/StructureDefinition/extension-MyExtension" />
  <name value="MyExtension" />
  <status value="draft" />
  <date value="2021-06-08T12:35:55.9659985+00:00" />
  <description value="my extension description" />
  <purpose value="my extension purpose" />
  <fhirVersion value="4.0.1" />
  <mapping>
    <identity value="rim" />
    <uri value="http://hl7.org/v3" />
    <name value="RIM Mapping" />
  </mapping>
  <kind value="complex-type" />
  <abstract value="false" />
  <context>
    <type value="element" />
    <expression value="Patient" />
  </context>
  <type value="Extension" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
  <derivation value="constraint" />
  <differential>
    <element id="Extension">
      <path value="Extension" />
      <short value="mExt short desc" />
      <definition value="mExt Def." />
      <comment value="myExt Comment" />
      <alias value="myExt Alias" />
      <min value="1" />
    </element>
    <element id="Extension.extension">
      <path value="Extension.extension" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <rules value="open" />
      </slicing>
    </element>
    <element id="Extension.extension:period">
      <path value="Extension.extension" />
      <sliceName value="period" />
    </element>
    <element id="Extension.extension:period.url">
      <path value="Extension.extension.url" />
      <fixedUri value="period" />
    </element>
    <element id="Extension.extension:period.value[x]">
      <path value="Extension.extension.value[x]" />
      <min value="1" />
      <type>
        <code value="Period" />
      </type>
      <fixedPeriod>
        <start value="2021-06-05" />
      </fixedPeriod>
    </element>
    <element id="Extension.extension:reason">
      <path value="Extension.extension" />
      <sliceName value="reason" />
    </element>
    <element id="Extension.extension:reason.url">
      <path value="Extension.extension.url" />
      <fixedUri value="reason" />
    </element>
    <element id="Extension.extension:reason.value[x]">
      <path value="Extension.extension.value[x]" />
      <type>
        <code value="CodeableConcept" />
      </type>
    </element>
    <element id="Extension.extension:reason.value[x].coding.system">
      <path value="Extension.extension.value[x].coding.system" />
      <fixedUri value="http://snomed.info/sct" />
    </element>
    <element id="Extension.extension:reason.value[x].coding.code">
      <path value="Extension.extension.value[x].coding.code" />
      <fixedCode value="tt14j" />
    </element>
    <element id="Extension.url">
      <path value="Extension.url" />
      <fixedUri value="https://fhir.mhn.asia/emr/StructureDefinition/extension-MyExtension" />
    </element>
    <element id="Extension.value[x]">
      <path value="Extension.value[x]" />
      <max value="0" />
    </element>
  </differential>
</StructureDefinition>