HL7 v2.9 Vocabulary
0.1.0 - ci-build

HL7 v2.9 Vocabulary, published by HL7/FO. This guide is not an authorized publication; it is the continuous build for version 0.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/frankoemig/hl7.v2.terminology.v29/ and changes regularly. See the Directory of published versions

## CodeSystem: Extended Priority Codes (2.9 - 1.0.1) (Experimental)

Official URL: http://terminology.hl7.org/v2plusvocab/CodeSystem/extendedPriorityCodes | Version: 1.0.1
Active as of 2026-01-27 | Computable Name: ExtendedPriorityCodes
Other Identifiers: OID:2.16.840.1.113883.18.310
Copyright/Legal: HL7 Inc., 2026

Code system of concepts describing the urgency of a request carried in an order. Used in HL7 Version 2.x messaging in timing/quantity; in older versions of the Standard was used in the TQ datatype, but in later versions it is used in the TQ1 segment (which replaced the TQ datatype which has been withdrawn).

This Code system is referenced in the content logical definition of the following value sets:

- Hl7VSextendedPriorityCodes

Properties

This code system defines the following properties for its concepts

Name | Code | URI | Type | Description
versionIntroduced | versionIntroduced | http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionIntroduced | string | version when was this code introduced
versionDeprecated | versionDeprecated | http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionDeprecated | string | version when was this code deprecated
status | status | http://hl7.org/fhir/concept-properties#status | code | A code that indicates the status of the concept. Typical values are active, experimental, deprecated, and retired
comment | comment | http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#comment | string | A string that provides additional detail pertinent to the use or understanding of the concept
usage | usage | http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#usage | string | usage notes for this code
modified | modified | http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#modified | dateTime | date of last modification

Concepts

This case-sensitive code system `http://terminology.hl7.org/v2plusvocab/CodeSystem/extendedPriorityCodes` defines the following codes:

Code | Display | Definition | versionIntroduced | status | comment | modified
A | ASAP | ASAP | 2.5 |  | Fill after S orders | 2015-07-13
C | Callback | Callback | 2.5 |  |  | 2015-07-13
P | Preop | Preop | 2.5 |  |  | 2015-07-13
PRN | As needed | As needed | 2.5 |  |  | 2015-07-13
R | Routine | Routine | 2.5 |  | Default | 2015-07-13
S | Stat | Stat | 2.5 |  | With highest priority | 2015-07-13
T | Timing critical | Timing critical | 2.5 |  | A request implying that it is critical to come as close as possible to the requested time, e.g., for a trough anti-microbial level. | 2015-07-13
TD<integer> | Timing critical within <integer> days. | Timing critical within <integer> days. | 2.5 | inactive | This is not a real code, but guidelines how to construct the codes. | 2016-07-11
TH<integer> | Timing critical within <integer> hours. | Timing critical within <integer> hours. | 2.5 | inactive | This is not a real code, but guidelines how to construct the codes. | 2016-07-11
TL<integer> | Timing critical within <integer> months. | Timing critical within <integer> months. | 2.5 | inactive | This is not a real code, but guidelines how to construct the codes. | 2016-07-11
TM<integer> | Timing critical within <integer> minutes. | Timing critical within <integer> minutes. | 2.5 | inactive | This is not a real code, but guidelines how to construct the codes. | 2016-07-11
TS<integer> | Timing critical within <integer> seconds. | Timing critical within <integer> seconds. | 2.5 | inactive | This is not a real code, but guidelines how to construct the codes. | 2016-07-11
TW<integer> | Timing critical within <integer> weeks. | Timing critical within <integer> weeks. | 2.5 | inactive | This is not a real code, but guidelines how to construct the codes. | 2016-07-11