HL7 Terminology
2.1.0 - Publication

This page is part of the HL7 Terminology (v2.1.0: Release) based on FHIR R4. The current version which supercedes this version is 5.2.0. For a full list of available versions, see the Directory of published versions

ValueSet: hl7VS-durationCategories


Defining URL:http://terminology.hl7.org/ValueSet/v2-0255
Status:Active as of 2019-12-01

Value Set of codes that classify an observation definition as intended to measure a patient's state at a point in time.

Publisher:HL7, Inc

Copyright HL7. Licensed under creative commons public domain

OID:2.16.840.1.113883.21.162 (for OID based terminology systems)
Source Resource:XML / JSON / Turtle


This value set is not used here; it may be used elsewhere (e.g. specifications and/or implementations that use this content)

Logical Definition (CLD)



This value set contains 27 concepts

Expansion based on durationCategories v2.3.0 (CodeSystem)

All codes from system http://terminology.hl7.org/CodeSystem/v2-0255

*(asterisk) Life of the "unit"(asterisk) Life of the "unit"
30M30 minutes30 minutes
1H1 hour1 hour
2H2 hours2 hours
2.5H2 1/2 hours2 1/2 hours
3H3 hours3 hours
4H4 hours4 hours
5H5 hours5 hours
6H6 hours6 hours
7H7 hours7 hours
8H8 hours8 hours
12H12 hours12 hours
24H24 hours24 hours
2D2 days2 days
3D3 days3 days
4D4 days4 days
5D5 days5 days
6D6 days6 days
1W1 week1 week
2W2 weeks2 weeks
3W3 weeks3 weeks
4W4 weeks4 weeks
1L1 months (30 days)1 months (30 days)
2L2 months2 months
3L3 months3 months
LULife of the "unit"Life of the "unit" (for blood products).
PTpoint in timeTo identify measures at a point in time. This is a synonym for "spot" or "random" as applied to urine measurements.

Explanation of the columns that may appear on this page:

Level A few code lists that FHIR defines are hierarchical - each code is assigned a level. In this scheme, some codes are under other codes, and imply that the code they are under also applies
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)
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


2020-05-06reviseTed KleinVocabulary WGMigrated to the UTG maintenance environment and publishing tooling.