Request to not perform due to allergy. (id = "medicationrequest0349")

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

<MedicationRequest xmlns="http://hl7.org/fhir">
  <id value="medicationrequest0349"/> 
  <contained> 
    <Medication> 
      <id value="med03302"/> 
      <code> 
        <coding> 
          <system value="http://www.nlm.nih.gov/research/umls/rxnorm"/> 
          <code value="74169"/> 
          <display value="piperacillin / tazobactam"/> 
        </coding> 
      </code> 
    </Medication> 
  </contained> 
  <identifier> 
    <use value="official"/> 
    <system value="http://www.bmc.nl/portal/prescriptions"/> 
    <value value="12345678"/> 
  </identifier> 
  <status value="active"/> 
  <intent value="order"/> 
  <doNotPerform value="true"/> 
  <medication> 
    <reference> 
      <reference value="#med03302"/> 
      <display value="Piperacillin/Tazobactam"/> 
    </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> 
    <reference value="Practitioner/f007"/> 
    <display value="Patrick Pump"/> 
  </requester> 
  <reason> 
    <reference> 
      <reference value="AllergyIntolerance/medication"/> 
      <display value="Allergy to penicillins (e.g., amoxicillin)"/> 
    </reference> 
  </reason> 
</MedicationRequest>