<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="http://www.agfa.com/ei/fhir/StructureDefinition/ei_servicerequest_extension" />
  <name value="Service_Request_Extension" />
  <status value="draft" />
  <description value="Extension on resoure Service Request to distinguish between an Enterprise Imaging Service Request, Requested Procedure or Scheduled Procedure step" />
  <fhirVersion value="4.0.0" />
  <mapping>
    <identity value="agfa-ei-model" />
    <name value="Enterprise Imaging DB model" />
  </mapping>
  <kind value="complex-type" />
  <abstract value="false" />
  <context>
    <type value="element" />
    <expression value="ServiceRequest" />
  </context>
  <type value="Extension" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
  <derivation value="constraint" />
  <snapshot />
  <differential>
    <element id="Extension">
      <path value="Extension" />
      <short value="Enterprise Imaging Service Request extension" />
    </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:Type">
      <path value="Extension.extension" />
      <sliceName value="Type" />
      <min value="1" />
      <max value="1" />
      <binding>
        <strength value="required" />
        <valueSet value="http://www.agfa.com/ei/fhir/ValueSet/ei-vs-servicerequest-type" />
      </binding>
    </element>
    <element id="Extension.extension:Type.url">
      <path value="Extension.extension.url" />
      <fixedUri value="Type" />
    </element>
    <element id="Extension.extension:Type.value[x]">
      <path value="Extension.extension.value[x]" />
      <code>
        <system value="http://www.agfa.com/ei/fhir/ValueSet/ei-vs-servicerequest-type" />
        <code value="SERVICE_REQUEST" />
        <display value="SERVICE_REQUEST" />
      </code>
      <code>
        <system value="http://www.agfa.com/ei/fhir/ValueSet/ei-vs-servicerequest-type" />
        <code value="REQUESTED_PROCEDURE" />
        <display value="REQUESTED_PROCEDURE" />
      </code>
      <code>
        <system value="http://www.agfa.com/ei/fhir/ValueSet/ei-vs-servicerequest-type" />
        <code value="SCHEDULED_PROCEDURE_STEP" />
        <display value="SCHEDULED_PROCEDURE_STEP" />
      </code>
      <short value="SERVICE_REQUEST | REQUESTED_PROCEDURE | SCHEDULED_PROCEDURE_STEP" />
      <min value="1" />
      <type>
        <code value="code" />
        <profile value="http://www.agfa.com/ei/fhir/ValueSet/ei-vs-servicerequest-type" />
      </type>
      <binding>
        <strength value="required" />
        <valueSet value="http://www.agfa.com/ei/fhir/ValueSet/ei-vs-servicerequest-type" />
      </binding>
    </element>
    <element id="Extension.extension:Requesting_Department">
      <path value="Extension.extension" />
      <sliceName value="Requesting_Department" />
      <max value="1" />
    </element>
    <element id="Extension.extension:Requesting_Department.url">
      <path value="Extension.extension.url" />
      <fixedUri value="Requesting_Department" />
    </element>
    <element id="Extension.extension:Requesting_Department.value[x]">
      <path value="Extension.extension.value[x]" />
      <type>
        <code value="Reference" />
        <targetProfile value="http://www.agfa.com/ei/fhir/StructureDefinition/ei_department" />
        <aggregation value="referenced" />
      </type>
    </element>
    <element id="Extension.extension:Requesting_Department.value[x].type">
      <path value="Extension.extension.value[x].type" />
      <fixedUri value="Organization" />
    </element>
    <element id="Extension.extension:Requesting_Facility">
      <path value="Extension.extension" />
      <sliceName value="Requesting_Facility" />
      <max value="1" />
    </element>
    <element id="Extension.extension:Requesting_Facility.url">
      <path value="Extension.extension.url" />
      <fixedUri value="Requesting_Facility" />
    </element>
    <element id="Extension.extension:Requesting_Facility.value[x]">
      <path value="Extension.extension.value[x]" />
      <type>
        <code value="Reference" />
        <targetProfile value="http://www.agfa.com/ei/fhir/StructureDefinition/ei_facility" />
        <aggregation value="referenced" />
      </type>
    </element>
    <element id="Extension.extension:Requesting_Facility.value[x].type">
      <path value="Extension.extension.value[x].type" />
      <fixedUri value="Organization" />
    </element>
    <element id="Extension.url">
      <path value="Extension.url" />
      <fixedUri value="http://www.agfa.com/ei/fhir/StructureDefinition/ei_servicerequest_extension" />
    </element>
    <element id="Extension.value[x]">
      <path value="Extension.value[x]" />
      <max value="0" />
    </element>
  </differential>
</StructureDefinition>