HL7 Terminology (THO)
3.0.0 - Publication

This page is part of the HL7 Terminology (v3.0.0: Release) based on FHIR R4. The current version which supercedes this version is 5.2.0. For a full list of available versions, see the Directory of published versions

CodeSystem: CodingRationale


Defining URL:http://terminology.hl7.org/CodeSystem/v3-CodingRationale
Status:Active as of 3/20/19

Identifies how to interpret the instance of the code, codeSystem value in a set of translations. Since HL7 (or a government body) may mandate that codes from certain code systems be sent in conformant messages, other synonyms that are sent in the translation set need to be distinguished among the originally captured source, the HL7 specified code, or some future role. When this code is NULL, it indicates that the translation is an undefined type. When valued, this property must contain one of the following values:

SRC - Source (or original) code HL7 - HL7 Specified or Mandated SH - both HL7 mandated and the original code (precoordination)

There may be additional values added to this value set as we work through the use of codes in messages and determine other Use Cases requiring special interpretation of the translations.

Publisher:HL7 International
Content:Complete: All the concepts defined by the code system are included in the code system resource
OID:2.16.840.1.113883.5.1074 (for OID based terminology systems)
Source Resource:XML / JSON / Turtle

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


SpecializesThe child code is a more narrow version of the concept represented by the parent code. I.e. Every child concept is also a valid parent concept. Used to allow determination of subsumption. Must be transitive, irreflexive, antisymmetric.Coding
GeneralizesInverse of Specializes. Only included as a derived relationship.Coding
internalIdhttp://terminology.hl7.org/CodeSystem/utg-concept-properties#v3-internal-idThe internal identifier for the concept in the HL7 Access database repository.code
statushttp://hl7.org/fhir/concept-properties#statusDesignation of a concept's state. Normally is not populated unless the state is retired..code

This code system http://terminology.hl7.org/CodeSystem/v3-CodingRationale defines the following codes:

O originally produced code**Description:** Originally produced code.22615active
OR original and requiredOriginally produced code, required by the specification describing the use of the coded concept.23533active
P post-coded**Description:** Post-coded from free text source</description>22617active
PR post-coded and requiredPost-coded from free text source, required by the specification describing the use of the coded concept.23534active
R required**Description:** Required standard code for HL7.22616active
HL7 HL7 Specified or MandatedHL7 Specified or Mandated19252retired
SH Both HL7 mandated and the original codeBoth HL7 mandated and the original code (precoordination)19253retired
SRC Source (or original) codeSource (or original) code19251retired


2020-05-06reviseTed KleinVocabulary WGMigrated to the UTG maintenance environment and publishing tooling.