<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="902f25ea-e473-4e5c-8375-42a6450bfe70" />
  <meta>
    <versionId value="9" />
    <lastUpdated value="2017-04-26T06:06:39.026+00:00" />
  </meta>
  <url value="http://hl7.org/fhir/StructureDefinition/messaging-id" />
  <name value="Messaging ID" />
  <status value="draft" />
  <date value="2017-04-24T14:36:57.3575807+07:00" />
  <fhirVersion value="1.0.2" />
  <kind value="datatype" />
  <constrainedType value="Extension" />
  <abstract value="false" />
  <contextType value="extension" />
  <base value="http://hl7.org/fhir/StructureDefinition/Extension" />
  <differential>
    <element>
      <path value="Extension" />
      <max value="1" />
    </element>
    <element>
      <path value="Extension.url" />
      <fixedUri value="http://hl7.org/fhir/StructureDefinition/messaging-id" />
    </element>
    <element>
      <path value="Extension.valueString" />
      <type>
        <code value="string" />
      </type>
      <maxLength value="255" />
    </element>
  </differential>
</StructureDefinition>