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4.4.1.421 ValueSet http://hl7.org/fhir/ValueSet/duration-units

FHIR Infrastructure icon Work Group  Maturity Level: N Normative (from v4.0.0) Use Context: Country: World
Official URL: http://hl7.org/fhir/ValueSet/duration-units Version: 6.0.0-ballot3
active as of 2025-10-31 Computable Name: CommonUCUMCodesForDuration
Flags: OID: 2.16.840.1.113883.4.642.3.61

This value set is used in the following places:

4.4.1.421.1 Definition

Unified Code for Units of Measure (UCUM). This value set includes all common UCUM codes used for Duration - that it is, all commonly used units which have the same canonical unit as 'a' (year)

4.4.1.421.2 Content Logical Definition

Generated Narrative: ValueSet duration-units

Last updated: 2025-10-31T03:32:15.86Z

Profile: Shareable ValueSet

  • Include these codes as defined in http://unitsofmeasure.org icon version Not Stated (use latest from terminology server)
    CodeDisplay
    msmilliseconds
    sseconds
    minminutes
    hhours
    ddays
    wkweeks
    momonths
    ayears

 

4.4.1.421.3 Expansion

This expansion generated 31 Oct 2025

ValueSet

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

This value set contains 8 concepts

SystemCodeDisplay
http://unitsofmeasure.org   ms ms
http://unitsofmeasure.org   s s
http://unitsofmeasure.org   min min
http://unitsofmeasure.org   h h
http://unitsofmeasure.org   d d
http://unitsofmeasure.org   wk wk
http://unitsofmeasure.org   mo mo
http://unitsofmeasure.org   a a

 

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