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

<id value="example-supplement"/>
<meta>
  <security>
    <system value="http://terminology.hl7.org/CodeSystem/v3-ActReason"/>
    <code value="HTEST"/>
    <display value="test health data"/>
  </security>
</meta>

<url value="http://hl7.org/fhir/CodeSystem/example-supplement"/>
<version value="201801103"/>
<name value="CholCodeLegacyStatus"/>
<status value="draft"/>
<experimental value="true"/>
<date value="2016-01-28"/>
<publisher value="ACME Co"/>
<contact>
  <name value="FHIR project team"/>
  <telecom>
    <system value="url"/>
    <value value="http://hl7.org/fhir"/>
  </telecom>
</contact>

<!--  the key elements that make it a supplement  -->
<content value="supplement"/>
<supplements value="http://hl7.org/fhir/CodeSystem/example"/>

<property>
  <code value="legacy"/>
  <description value="hether the test is currently performed"/>
  <type value="boolean"/>
</property>
<concept>
  <code value="chol-mmol"/>
  <property>  
    <code value="legacy"/>
    <valueBoolean value="false"/>
  </property>
</concept>
<concept>
  <code value="chol-mass"/>
  <property>  
    <code value="legacy"/>
    <valueBoolean value="true"/>
  </property>
</concept>
<concept>
  <code value="chol"/>
  <property>  
    <code value="legacy"/>
    <valueBoolean value="true"/>
  </property>
</concept>

</CodeSystem>