Definition for Value SetAll UCUM Expression for Time

{
  "resourceType" : "ValueSet",
  "id" : "all-time-units",
  "meta" : {
    "lastUpdated" : "2023-12-18T15:12:07.602+11:00",
    "profile" : ["http://hl7.org/fhir/StructureDefinition/shareablevalueset"]
  },
  "text" : {
    "status" : "generated",
    "div" : "<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>"
  },
  "extension" : [{
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode" : "fhir"
  }],
  "url" : "http://hl7.org/fhir/ValueSet/all-time-units",
  "identifier" : [{
    "system" : "urn:ietf:rfc:3986",
    "value" : "urn:oid:2.16.840.1.113883.4.642.3.3304"
  }],
  "version" : "6.0.0-ballot1",
  "name" : "AllUCUMExpressionForTime",
  "title" : "All UCUM Expression for Time",
  "status" : "draft",
  "experimental" : false,
  "publisher" : "HL7 International / FHIR Infrastructure",
  "contact" : [{
    "telecom" : [{
      "system" : "url",
      "value" : "http://www.hl7.org/Special/committees/fiwg"
    }]
  }],
  "description" : "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" : "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" : "http://unitsofmeasure.org",
      "filter" : [{
        "property" : "canonical",
        "op" : "=",
        "value" : "a"
      }]
    }]
  }
}