Definition for Value SetAll UCUM Expression for Time

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

<ValueSet xmlns="http://hl7.org/fhir">
  <id value="all-time-units"/> 
  <meta> 
    <lastUpdated value="2022-09-07T10:58:29.429+10:00"/> 
  </meta> 
  <text> 
    <status value="generated"/> 
    <div xmlns="http://www.w3.org/1999/xhtml">
      <ul> 
        <li> Include codes from 
          <a href="http://unitsofmeasure.org">
            <code> http://unitsofmeasure.org</code> 
          </a>  where canonical  =  a
        </li> 
      </ul> 
    </div> 
  </text> 
  <url value="http://hl7.org/fhir/ValueSet/all-time-units"/> 
  <version value="5.0.0-ballot"/> 
  <name value="AllUCUMExpressionForTime"/> 
  <title value="All UCUM Expression for Time"/> 
  <status value="draft"/> 
  <experimental value="false"/> 
  <publisher value="FHIR Project team"/> 
  <contact> 
    <telecom> 
      <system value="url"/> 
      <value value="http://hl7.org/fhir"/> 
    </telecom> 
  </contact> 
  <description value="Unified Code for Units of Measure (UCUM). This value set includes all possible UCUM codes
   used for time measures (Age, Duration etc.) - that it is, all units which have the same
   canonical unit as 'a' (year)"/> 
  <copyright value="The UCUM codes, UCUM table (regardless of format), and UCUM Specification are copyright
   © 1999-2009, Regenstrief Institute, Inc. and the Unified Codes for Units of Measures (UCUM)
   Organization. All rights reserved."/> 
  <compose> 
    <include> 
      <system value="http://unitsofmeasure.org"/> 
      <filter> 
        <property value="canonical"/> 
        <op value="="/> 
        <value value="a"/> 
      </filter> 
    </include> 
  </compose> 
</ValueSet>