This page is part of the FHIR Core Extensions Registry (v5.3.0-ballot-tc1: Release 5.3) based on FHIR (HL7® FHIR® Standard) v5.0.0. This version is a pre-release. The current official version is 5.2.0. For a full list of available versions, see the Directory of published versions

• Narrative Content
• XML
• JSON
• TTL

: Common UCUM Codes for Time Duration - JSON Representation

Raw json | Download

{
  "resourceType" : "ValueSet",
  "id" : "time-duration-units",
  "meta" : {
    "profile" : [
      🔗 "http://hl7.org/fhir/StructureDefinition/shareablevalueset"
    ]
  },
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: ValueSet time-duration-units</b></p><a name=\"time-duration-units\"> </a><a name=\"hctime-duration-units\"> </a><div style=\"display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px solid #8da1b4; border-radius: 5px; line-height: 60%\"><p style=\"margin-bottom: 0px\"/><p style=\"margin-bottom: 0px\">Profile: <a href=\"http://hl7.org/fhir/R5/shareablevalueset.html\">Shareable ValueSet</a></p></div><ul><li>Include these codes as defined in <a href=\"http://unitsofmeasure.org\"><code>http://unitsofmeasure.org</code></a><table class=\"none\"><tr><td style=\"white-space:nowrap\"><b>Code</b></td><td><b>Display</b></td></tr><tr><td>ms</td><td>milliseconds</td></tr><tr><td>s</td><td>seconds</td></tr><tr><td>min</td><td>minutes</td></tr><tr><td>h</td><td>hours</td></tr><tr><td>d</td><td>days</td></tr><tr><td>mo</td><td>months</td></tr><tr><td>a</td><td>years</td></tr></table></li></ul></div>"
  },
  "extension" : [
    {
      "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
      "valueCode" : "fhir"
    },
    {
      "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
      "valueCode" : "trial-use"
    },
    {
      "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
      "valueInteger" : 1
    }
  ],
  "url" : "http://hl7.org/fhir/ValueSet/time-duration-units",
  "version" : "5.3.0-ballot-tc1",
  "name" : "CommonUCUMCodesForTimeDuration",
  "title" : "Common UCUM Codes for Time Duration",
  "status" : "active",
  "experimental" : false,
  "date" : "2025-05-23",
  "publisher" : "HL7 International / FHIR Infrastructure",
  "contact" : [
    {
      "telecom" : [
        {
          "system" : "url",
          "value" : "http://www.hl7.org/Special/committees/fiwg"
        }
      ]
    }
  ],
  "description" : "This value set includes all common UCUM codes used for Time Duration Units - 'a' (years), 'mo' (months), 'd' (days), 'h' (hours), 'min' (minutes), 's' (seconds), and 'ms' (milliseconds). NOTE: This value set is the same as the duration units value set, except that it does not include weeks, because weeks are not a valid precision for a datetime, time, or instant value.",
  "jurisdiction" : [
    {
      "coding" : [
        {
          "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
          "code" : "001"
        }
      ]
    }
  ],
  "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",
        "concept" : [
          {
            "code" : "ms",
            "display" : "milliseconds"
          },
          {
            "code" : "s",
            "display" : "seconds"
          },
          {
            "code" : "min",
            "display" : "minutes"
          },
          {
            "code" : "h",
            "display" : "hours"
          },
          {
            "code" : "d",
            "display" : "days"
          },
          {
            "code" : "mo",
            "display" : "months"
          },
          {
            "code" : "a",
            "display" : "years"
          }
        ]
      }
    ]
  }
}