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: Event Related Period (2.5.1 - 1.0.0) (Experimental)

Official URL: http://terminology.hl7.org/v2plusvocab/CodeSystem/eventRelatedPeriod | Version: 1.0.0
Active as of 2026-01-27 | Computable Name: EventRelatedPeriod
Other Identifiers: OID:2.16.840.1.113883.18.344
Copyright/Legal: HL7 Inc., 2026

HL7-defined code system of concepts specifying a common (periodical) activity of daily living. Used in HL7 Version 2 messaging in the RPT segment.

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

- Hl7VSeventRelatedPeriod

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/eventRelatedPeriod` defines the following codes:

Code | Display | Definition | versionIntroduced | Deutsch (German, de)
AC | before meal (from lat. ante cibus) | before meal (from lat. ante cibus) | 2.5 | vor der Mahlzeit (from lat. Ante cibus)
ACD | before lunch (from lat. ante cibus diurnus) | before lunch (from lat. ante cibus diurnus) | 2.5 | vor dem Mittagessen (from lat. Ante cibus diurnus)
ACM | before breakfast (from lat. ante cibus matutinus) | before breakfast (from lat. ante cibus matutinus) | 2.5 | vor dem Frühstück (from lat. Ante cibus matutinus)
ACV | before dinner (from lat. ante cibus vespertinus) | before dinner (from lat. ante cibus vespertinus) | 2.5 | vor dem Abendessen (from lat. Ante cibus vespertinus)
HS | the hour of sleep (e.g., H18-22) | the hour of sleep (e.g., H18-22) | 2.5 |
IC | between meals (from lat. inter cibus) | between meals (from lat. inter cibus) | 2.5 |
ICD | between lunch and dinner | between lunch and dinner | 2.5 |
ICM | between breakfast and lunch | between breakfast and lunch | 2.5 |
ICV | between dinner and the hour of sleep | between dinner and the hour of sleep | 2.5 |
PC | after meal (from lat. post cibus) | after meal (from lat. post cibus) | 2.5 |
PCD | after lunch (from lat. post cibus diurnus) | after lunch (from lat. post cibus diurnus) | 2.5 |
PCM | after breakfast (from lat. post cibus matutinus) | after breakfast (from lat. post cibus matutinus) | 2.5 |
PCV | after dinner (from lat. post cibus vespertinus) | after dinner (from lat. post cibus vespertinus) | 2.5 |