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4.4.1.172 ValueSet http://hl7.org/fhir/ValueSet/units-of-time

Responsible Owner: FHIR Infrastructure icon Work Group Normative Use Context: Country: World
Official URL: http://hl7.org/fhir/ValueSet/units-of-time Version: 6.0.0-ballot4
active as of 2026-03-06 Computable Name: UnitsOfTime
Flags: OID: 2.16.840.1.113883.4.642.3.77

This value set is used in the following places:

4.4.1.172.1 Definition

A unit of time (units from UCUM).

4.4.1.172.2 Content Logical Definition

Generated Narrative: ValueSet units-of-time

Last updated: 2026-03-06T15:48:15.049Z

  • Include these codes as defined in http://unitsofmeasure.org icon version Not Stated (use latest from terminology server)
    CodeDisplayDefinition中文 (Chinese, zh)
    ssecondsecond秒
    minminuteminute分钟
    hhourhour小时
    ddayday天
    wkweekweek星期
    momonthmonth - Normal practice is to use the 'mo' code as a calendar month when calculating the next occurrence.月
    ayearyear年

 

4.4.1.172.3 Expansion

This expansion generated 06 Mar 2026

ValueSet

Expansion from tx.fhir.org based on codesystem UCUM version 2.2

This value set contains 7 concepts

SystemCodeDisplayDisplay (English)Display (中文)
http://unitsofmeasure.org   s s second 秒
http://unitsofmeasure.org   min min minute 分钟
http://unitsofmeasure.org   h h hour 小时
http://unitsofmeasure.org   d d day 天
http://unitsofmeasure.org   wk wk week 星期
http://unitsofmeasure.org   mo mo month 月
http://unitsofmeasure.org   a a year 年

 

See the full registry of value sets defined as part of FHIR.

Explanation of the columns that may appear on this page:

Lvl A few code lists that FHIR defines are hierarchical - each code is assigned a level. For value sets, levels are mostly used to organize codes for user convenience, but may follow code system hierarchy - see Code System for further information
Source The source of the definition of the code (when the value set draws in codes defined elsewhere)
Code The code (used as the code in the resource instance). If the code is in italics, this indicates that the code is not selectable ('Abstract')
Display The display (used in the display element of a Coding). If there is no display, implementers should not simply display the code, but map the concept into their application
Definition An explanation of the meaning of the concept
Comments Additional notes about how to use the code