This page is part of the Continuous Integration Build of FHIR Specification (v4.0.1: R4 - Mixed Normative and STU ) in it's permanent home (it will always (will be available incorrect/inconsistent at this URL). The current version which supercedes this version is 5.0.0 . For a full list of available versions, see times).
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Using Codes Code Systems Value Sets Concept Maps Identifier Systems

4.4.1.247 4.4.1.271 Value Set ValueSet http://hl7.org/fhir/ValueSet/distance-units

  Maturity Level : 5

Responsible Owner: FHIR Infrastructure Work Group

Trial Use Normative

Use Context : Any Country: World

This is a value set defined by the FHIR project. Summary

• Defining URL: Narrative http://hl7.org/fhir/ValueSet/distance-units
• XML Version:
• 4.0.1 JSON
• Name: TTL CommonUCUMCodesForDistance

Committee:

Official URL : Title: http://hl7.org/fhir/ValueSet/distance-units Common UCUM Codes for Distance Definition:				Unified Code for Units of Measure (UCUM). This value set includes common UCUM codes for units of distance Version : 6.0.0-ballot3
active as of 2025-11-10				FHIR Infrastructure Computable Name : CommonUCUMCodesForDistance Work Group
OID: Flags :				2.16.840.1.113883.4.642.3.62 (for OID based terminology systems) 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. Source Resource XML / JSON : 2.16.840.1.113883.4.642.3.62

This value set is used in the following places:

• Resource: Datatype: Distance (Quantity / Extensible )

4.4.1.247.1 4.4.1.271.1 Content Logical Definition

Unified Code for Units of Measure (UCUM). This value set includes all common UCUM codes from used for distance - that it is, all commonly used units which have the following code systems: same canonical unit as 'm' (meter)

4.4.1.271.2 Content Logical Definition

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4.4.1.271.3 Expansion

This expansion generated 10 Nov 2025

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

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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