<?xml version=“1.0” encoding=“UTF-8”?> <Observation xmlns=“hl7.org/fhir”>

      <id value="example-TPMT-haplotype-two"/>
      <meta>
  <security>
    <system value="http://terminology.hl7.org/CodeSystem/v3-ActReason"/>
    <code value="HTEST"/>
    <display value="test health data"/>
  </security>
</meta>
<extension url="http://hl7.org/fhir/StructureDefinition/observation-geneticsGene">
              <valueCodeableConcept>
                      <coding>
                              <system value="http://www.genenames.org"/>
                              <code value="12014"/>
                              <display value="TPMT"/>
                      </coding>
              </valueCodeableConcept>
      </extension>
      <status value="unknown"/>
      <code>
              <coding>
                      <system value="http://snomed.info/sct"/>
                      <code value="363779003"/>
                      <display value="Genotype determination"/>
              </coding>
              <text value="Haplotype Call"/>
      </code>
      <subject>
              <reference value="Patient/example"/>
              <display value="E***********"/>
      </subject>
      <issued value="2013-04-03T15:30:10+01:00"/>
      <valueCodeableConcept>
              <coding>
                      <system value="http://pharmakb.org"/>
                      <code value="PA166128353"/>
                      <display value="*4"/>
              </coding>
      </valueCodeableConcept>
      <derivedFrom>
              <reference value="MolecularSequence/example-TPMT-two"/>
      </derivedFrom>

</Observation>