Request medication where there is an option of the route of administration - includes group identifier (id = "medrx0343a")

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

<MedicationRequest xmlns="http://hl7.org/fhir">
  <id value="medrx0343a"/> 
  <contained> 
    <Medication> 
      <id value="med0343a"/> 
      <code> 
        <coding> 
          <system value="http://snomed.info/sct"/> 
          <code value="1179448000"/> 
          <display value="Product containing precisely ondansetron 4 milligram/1 each conventional release
           oral lyophilisate (clinical drug)"/> 
        </coding> 
      </code> 
    </Medication> 
  </contained> 
  <identifier> 
    <use value="official"/> 
    <system value="http://www.bmc.nl/portal/prescriptions"/> 
    <value value="98765"/> 
  </identifier> 
  <groupIdentifier> 
    <use value="official"/> 
    <system value="http://www.bmc.nl/portal/prescriptions"/> 
    <value value="9898"/> 
  </groupIdentifier> 
  <status value="active"/> 
  <intent value="option"/> 
  <medication> 
    <reference> 
      <reference value="#med0343a"/> 
      <display value="Ondansetron 4mg Tablet"/> 
    </reference> 
  </medication> 
  <subject> 
    <!--   Linked to the resource patient who needs the medication   -->
    <reference value="Patient/pat1"/> 
    <display value="Donald Duck"/> 
  </subject> 
  <authoredOn value="2015-01-15"/> 
  <requester> 
    <!--   Linked to the practitioner who treats patient   -->
    <reference value="Practitioner/f007"/> 
    <display value="Patrick Pump"/> 
  </requester> 
  <dosageInstruction> 
    <sequence value="1"/> 
    <text value="One tablet (4mg) orally twice daily as needed for nausea"/> 
    <timing> 
      <repeat> 
        <frequency value="2"/> 
        <period value="1"/> 
        <periodUnit value="d"/> 
      </repeat> 
    </timing> 
    <asNeededFor> 
      <coding> 
        <system value="http://snomed.info/sct"/> 
        <code value="16932000"/> 
        <display value="Nausea and Vomiting"/> 
      </coding> 
    </asNeededFor> 
    <route> 
      <coding> 
        <system value="http://snomed.info/sct"/> 
        <code value="78421000"/> 
        <display value="Intramuscular Route"/> 
      </coding> 
    </route> 
    <doseAndRate> 
      <doseQuantity> 
        <value value="4"/> 
        <unit value="mg"/> 
        <system value="http://unitsofmeasure.org"/> 
        <code value="mg"/> 
      </doseQuantity> 
    </doseAndRate> 
  </dosageInstruction> 
</MedicationRequest>