An exam finding using pattern 3 described in the "Using Codes in Observation" Section (id = "abdo-tender")

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

<Observation xmlns="http://hl7.org/fhir">
  <id value="abdo-tender"/> 
  <status value="final"/> 
  <category> 
    <coding> 
      <system value="http://terminology.hl7.org/CodeSystem/observation-category"/> 
      <code value="exam"/> 
      <display value="Exam"/> 
    </coding> 
  </category> 
  <code> 
    <coding> 
      <system value="http://snomed.info/sct"/> 
      <code value="43478001"/> 
      <display value="Abdominal tenderness (finding)"/> 
    </coding> 
    <text value="Abdominal tenderness"/> 
  </code> 
  <subject> 
    <reference value="Patient/example"/> 
  </subject> 
  <encounter> 
    <reference value="Encounter/example"/> 
  </encounter> 
  <effectivePeriod> 
    <start value="2018-04-02T10:30:10+01:00"/> 
  </effectivePeriod> 
  <issued value="2018-04-03T15:30:10+01:00"/> 
  <valueBoolean value="true"/> 
  <interpretation> 
    <coding> 
      <system value="http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation"/> 
      <code value="A"/> 
      <display value="Abnormal"/> 
    </coding> 
    <text value="Abnormal"/> 
  </interpretation> 
</Observation>