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:

Properties

This code system defines the following properties for its concepts

NameCodeURITypeDescription
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:

CodeDisplayDefinitionversionIntroduced
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