<?xml version="1.0" encoding="UTF-8"?><CodeSystem xmlns="http://hl7.org/fhir">
  <id value="example-supplement"/>
  <text>
    <status value="generated"/>
    <div xmlns="http://www.w3.org/1999/xhtml">
      <p>A supplement pack for <code>http://hl7.org/fhir/CodeSystem/example</code> that defines the administrative property &#39;legacy&#39; for whether the test is currently performed </p>
      <table class="grid">
        <tr>
          <td>
            <b>Code</b>
          </td>
          <td>
            <b>Legacy</b>
          </td>
        </tr>
        <tr>
          <td>chol-mmol</td>
          <td>false</td>
        </tr>
        <tr>
          <td>chol-mass</td>
          <td>true</td>
        </tr>
        <tr>
          <td>chol</td>
          <td>true</td>
        </tr>
      </table>
    </div>
  </text>
  
  <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>