Free T4 Add on Order (id = "ft4")

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

<ServiceRequest xmlns="http://hl7.org/fhir">
  <id value="ft4"/> 
  <contained> 
    <ServiceRequest> 
      <id value="tsh"/> 
      <status value="completed"/> 
      <intent value="original-order"/> 
      <code> 
        <concept> 
          <coding> 
            <system value="http://loinc.org"/> 
            <code value="3016-3"/> 
            <display value="Thyrotropin [Units/volume] in Serum or Plasma"/> 
          </coding> 
          <text value="TSH"/> 
        </concept> 
      </code> 
      <subject> 
        <reference value="Patient/pat2"/> 
      </subject> 
    </ServiceRequest> 
  </contained> 
  <basedOn> 
    <reference value="#tsh"/> 
    <display value="Original request for TSH test"/> 
  </basedOn> 
  <status value="active"/> 
  <intent value="reflex-order"/> 
  <code> 
    <concept> 
      <coding> 
        <system value="http://loinc.org"/> 
        <code value="3024-7"/> 
        <display value="Thyroxine (T4) free [Mass/volume] in Serum or Plasma"/> 
      </coding> 
      <text value="Free T4"/> 
    </concept> 
  </code> 
  <subject> 
    <reference value="Patient/pat2"/> 
  </subject> 
  <occurrenceDateTime value="2015-08-27T09:33:27+07:00"/> 
  <requester> 
    <reference value="Practitioner/example"/> 
  </requester> 
</ServiceRequest>