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

<id value="heart-valve-replacement"/>
<text>
  <status value="generated"/>
  <div xmlns="http://www.w3.org/1999/xhtml">
  </div>
</text>
<status value="draft"/>
<description value="Heart valve replacement"/>
<purpose value="Describes the proposal to perform a Heart Valve replacement."/>
<usage value="This activity definition is used as the definition of a procedure request to perform a heart valve replacement. Elements that apply universally are defined here, while elements that apply to the specific setting of a referral within a particular order set are defined in the order set."/>
<useContext>
  <code>
    <system value="http://hl7.org/fhir/usage-context-type"/>
    <code value="age"/>
  </code>
  <valueCodeableConcept>
    <coding>
      <system value="https://meshb.nlm.nih.gov"/>
      <code value="D000328"/>
      <display value="Adult"/>
    </coding>
  </valueCodeableConcept>
</useContext>
<useContext>
  <code>
    <system value="http://hl7.org/fhir/usage-context-type"/>
    <code value="user"/>
  </code>
  <valueCodeableConcept>
    <coding>
      <system value="http://snomed.info/sct"/>
      <code value="309343006"/>
      <display value="Physician"/>
    </coding>
  </valueCodeableConcept>
</useContext>
<topic>
      <coding> 
              <system value="http://snomed.info/sct"/> 
              <code value="34068001"/> 
              <display value="Heart valve replacement"/> 
      </coding> 
</topic>
<kind value="ProcedureRequest"/>
  <code> 
      <coding> 
          <system value="http://snomed.info/sct"/> 
          <code value="34068001"/> 
          <display value="Heart valve replacement"/> 
      </coding> 
  </code>
<timingTiming>
  <extension url="http://hl7.org/fhir/StructureDefinition/cqif-cqlExpression">
    <valueString value="Now()"/>
  </extension>
</timingTiming>
<location>
  <reference value="Location/1"/>
</location>
<participant>
      <type value="practitioner"/>
      <role>
        <coding>
          <system value="http://nucc.org/provider-taxonomy"/>
          <code value="207RI0011X"/>
          <display value="Interventional Cardiology"/>
        </coding>
        <text value="Interventional Cardiology"/>
      </role>
</participant>
  <bodySite> 
              <coding> 
                      <system value="http://snomed.info/sct"/> 
                      <code value="17401000"/> 
                      <display value="Heart valve structure"/> 
              </coding>  
  </bodySite>

</ActivityDefinition>