Example with sub-requests derived from the request (id = "subrequest")

<?xml version="1.0" encoding="UTF-8"?>

<!--  
This example is used for DetectedIssue/Duplicate Therapy example will need to edit
 that as well

  --><!--   insert contents here   --><ServiceRequest xmlns="http://hl7.org/fhir">
  <id value="subrequest"/> 
  <!--    <extension url="http://hl7.org/fhir/StructureDefinition/bodysitecode">
    <valueCodeableConcept>
      <coding>
        <system value="http://snomed.info/sct"/>
        <code value="51185008"/>
        <display value="Thoracic structure"/>
      </coding>
    </valueCodeableConcept>
</extension>
    -->
  <basedOn> 
    <display value="Original Request"/> 
  </basedOn> 
  <replaces> 
    <display value="Previous allergy test"/> 
  </replaces> 
  <!--   0..1 The value that is unique   -->
  <requisition> 
    <!--   from Element: extension   -->
    <value value="A13848392"/> 
  </requisition> 
  <status value="active"/> 
  <intent value="instance-order"/> 
  <priority value="routine"/> 
  <code> 
    <concept> 
      <coding> 
        <system value="http://loinc.org"/> 
        <code value="35542-0"/> 
      </coding> 
      <text value="Peanut IgG"/> 
    </concept> 
  </code> 
  <subject> 
    <reference value="Patient/dicom"/> 
  </subject> 
  <occurrenceDateTime value="2013-05-08T09:33:27+07:00"/> 
  <requester> 
    <reference value="Practitioner/example"/> 
    <display value="Dr. Adam Careful"/> 
  </requester> 
  <performerType> 
    <coding> 
      <display value="Qualified nurse"/> 
    </coding> 
    <text value="Nurse"/> 
  </performerType> 
  <reason> 
    <concept> 
      <text value="Check for Peanut Allergy"/> 
    </concept> 
  </reason> 
  <bodySite> 
    <coding> 
      <display value="Right arm"/> 
    </coding> 
    <text value="Right arm"/> 
  </bodySite> 
</ServiceRequest>