<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="http://ihis.sg/ccdp/extension/requesterId" />
  <name value="RequesterId" />
  <status value="draft" />
  <fhirVersion value="4.0.1" />
  <kind value="complex-type" />
  <abstract value="false" />
  <context>
    <type value="element" />
    <expression value="CarePlan" />
  </context>
  <context>
    <type value="element" />
    <expression value="Patient" />
  </context>
  <context>
    <type value="element" />
    <expression value="Appointment" />
  </context>
  <context>
    <type value="element" />
    <expression value="Encounter" />
  </context>
  <context>
    <type value="element" />
    <expression value="Invoice" />
  </context>
  <context>
    <type value="element" />
    <expression value="PaymentTransaction" />
  </context>
  <context>
    <type value="element" />
    <expression value="Questionnaire" />
  </context>
  <type value="Extension" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
  <derivation value="constraint" />
  <differential>
    <element id="Extension">
      <path value="Extension" />
      <max value="1" />
      <isModifier value="false" />
    </element>
    <element id="Extension.url">
      <path value="Extension.url" />
      <fixedUri value="http://ihis.sg/ccdp/extension/requesterId" />
    </element>
    <element id="Extension.value[x]">
      <path value="Extension.value[x]" />
      <short value="Requester ID value" />
      <definition value="The value of the requester ID" />
      <type>
        <code value="string" />
      </type>
      <binding>
        <strength value="required" />
      </binding>
    </element>
  </differential>
</StructureDefinition>