<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="d9e8a932-d94d-4664-882a-3c58d091bf41" />
  <url value="https://fhir.nhs.uk/StructureDefinition/NHSEngland-MessageHeader" />
  <name value="NHSEnglandMessageHeader" />
  <status value="draft" />
  <date value="2022-09-21T10:57:41.3600678+00:00" />
  <description value="This profile is designed around NHS England requirements for genetic testing message header transport requirements" />
  <fhirVersion value="4.0.1" />
  <kind value="resource" />
  <abstract value="false" />
  <type value="MessageHeader" />
  <baseDefinition value="https://fhir.hl7.org.uk/StructureDefinition/UKCore-MessageHeader" />
  <derivation value="constraint" />
  <differential>
    <element id="MessageHeader.extension">
      <path value="MessageHeader.extension" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <rules value="open" />
      </slicing>
      <min value="1" />
    </element>
    <element id="MessageHeader.extension:messageEventType">
      <path value="MessageHeader.extension" />
      <sliceName value="messageEventType" />
      <min value="1" />
      <max value="1" />
      <type>
        <code value="Extension" />
        <profile value="https://fhir.nhs.uk/StructureDefinition/Extension-NHSEngland-MessageEventType" />
      </type>
      <isModifier value="false" />
    </element>
    <element id="MessageHeader.destination">
      <path value="MessageHeader.destination" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="MessageHeader.sender">
      <path value="MessageHeader.sender" />
      <min value="1" />
    </element>
    <element id="MessageHeader.definition">
      <path value="MessageHeader.definition" />
      <max value="0" />
    </element>
  </differential>
</StructureDefinition>