HL7 v2.6 Vocabulary
0.1.0 - ci-build

HL7 v2.6 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.v26/ and changes regularly. See the Directory of published versions

CodeSystem: Allow Substitution Codes (2.6 - 1.1.0) (Experimental)

Official URL: http://terminology.hl7.org/v2plusvocab/CodeSystem/allowSubstitution Version: 1.1.0
Active as of 2026-01-27 Computable Name: AllowSubstitution
Other Identifiers: OID:2.16.840.1.113883.18.172

Copyright/Legal: HL7 Inc., 2026

Code system of concepts used to indicate whether the appointment resource may be substituted for another by the entity assigned to fulfill the appointment. Used in HL7 Version 2.x messaging in the AIS and AIG segments.

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-insensitive code system http://terminology.hl7.org/v2plusvocab/CodeSystem/allowSubstitution defines the following codes:

CodeDisplayDefinitionversionIntroduced
Confirm Contact the Placer Contact Person prior to making any substitutions of this resource Contact the Placer Contact Person prior to making any substitutions of this resource 2.3.1
No Substitution of this resource is not allowed Substitution of this resource is not allowed 2.3.1
Notify Notify the Placer Contact Person, through normal institutional procedures, that a substitution of this resource has been made Notify the Placer Contact Person, through normal institutional procedures, that a substitution of this resource has been made 2.3.1
Yes Substitution of this resource is allowed Substitution of this resource is allowed 2.3.1