<?xml version="1.0" encoding="UTF-8"?><Observation xmlns="http://hl7.org/fhir">
  <!-- BMD measurements of left femur encoded as an observation for example purposes. -->
  <id value="bmd"/>
  <meta>
    <security>
      <system value="http://terminology.hl7.org/CodeSystem/v3-ActReason"/>
      <code value="HTEST"/>
      <display value="test health data"/>
    </security>
  </meta>
  <status value="final"/>
  <code>
    <coding>
      <system value="http://loinc.org"/>
      <code value="24701-5"/>
      <display value="DXA Femur [Mass/Area] Bone density"/>
    </coding>
    <text value="BMD - Left Femur"/>
  </code>
  <subject>
    <reference value="Patient/pat2"/>
  </subject>
  <!-- well, actually. this isn't the patient, but it'll do for now -->
  <performer>
    <reference value="Organization/1832473e-2fe0-452d-abe9-3cdb9879522f"/>
    <display value="Acme Imaging Diagnostics"/>
  </performer>
  <valueQuantity>
    <value value="0.887"/>
    <unit value="g/cm²"/>
    <system value="http://unitsofmeasure.org"/>
    <code value="g/cm-2"/>
  </valueQuantity>
  <bodySite>
    <!-- example of a post coordinated term -->
    <coding>
      <system value="http://snomed.info/sct"/>
      <code value="71341001:272741003=7771000"/>
    </coding>
    <text value="Left Femur"/>
  </bodySite>
</Observation>