HL7 v2.5.1 Vocabulary
0.1.0 - ci-build

HL7 v2.5.1 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.v251/ and changes regularly. See the Directory of published versions

## CodeSystem: Repeat Pattern (2.5.1 - 1.1.0) (Experimental)

Official URL: http://terminology.hl7.org/v2plusvocab/CodeSystem/repeatPattern | Version: 1.1.0
Active as of 2026-01-27 | Computable Name: RepeatPattern
Other Identifiers: OID:2.16.840.1.113883.18.205
Copyright/Legal: HL7 Inc., 2026

Code system of concepts used to specify the interval between repeated services. Used in HL7 Version 2.x messaging in the RI datatype and RPT segment.

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

- Hl7VSrepeatPattern

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/repeatPattern` defines the following codes:

Code | Display | Definition | versionIntroduced
A | Ante (before) | Ante (before) | 2.4
BID | twice a day at institution-specified times | twice a day at institution-specified times | 2.4
C | service is provided continuously between start time and stop time | service is provided continuously between start time and stop time | 2.4
D | Cibus Diurnus (lunch) | Cibus Diurnus (lunch) | 2.4
I | Inter | Inter | 2.4
M | Cibus Matutinus (breakfast) | Cibus Matutinus (breakfast) | 2.4
Meal Related Timings | <timing>C ("cum")<meal> | <timing>C ("cum")<meal> | 2.4
Once | one time only. | one time only. | 2.4
P | Post (after) | Post (after) | 2.4
PRN | given as needed | given as needed | 2.4
PRNxxx | where xxx is some frequency code | where xxx is some frequency code | 2.4
Q<integer>D | every <integer> days | every <integer> days | 2.4
Q<integer>H | every <integer> hours | every <integer> hours | 2.4
Q<integer>J<day#> | repeats on a particular day of the week | repeats on a particular day of the week | 2.4
Q<integer>L | every <integer> months (Lunar cycle) | every <integer> months (Lunar cycle) | 2.4
Q<integer>M | every <integer> minutes | every <integer> minutes | 2.4
Q<integer>S | every <integer> seconds | every <integer> seconds | 2.4
Q<integer>W | every <integer> weeks | every <integer> weeks | 2.4
QAM | in the morning at institution-specified time | in the morning at institution-specified time | 2.4
QHS | every day before the hour of sleep | every day before the hour of sleep | 2.4
QID | four times a day at institution-specified times | four times a day at institution-specified times | 2.4
QOD | every other day | every other day | 2.4
QPM | in the evening at institution-specified time | in the evening at institution-specified time | 2.4
QSHIFT | during each of three eight-hour shifts at institution-specified times | during each of three eight-hour shifts at institution-specified times | 2.4
TID | three times a day at institution-specified times | three times a day at institution-specified times | 2.4
U <spec> | for future use, where <spec> is an interval specification as defined by the UNIX cron specification. | for future use, where <spec> is an interval specification as defined by the UNIX cron specification. | 2.4
V | Cibus Vespertinus (dinner) | Cibus Vespertinus (dinner) | 2.4
xID | "X" times per day at institution-specified times, where X is a numeral 5 or greater. | "X" times per day at institution-specified times, where X is a numeral 5 or greater. | 2.4