Release 4
This page is part of the FHIR Specification (v4.0.1: R4 - Mixed Normative and STU ). This is the current published version in it's permanent home (it will always be available at this URL). For a full list of available versions, see the Directory of published versions HL7 v3 Value Set CodingRationale

Vocabulary Work Group   Maturity Level : N/A External Use Context : Any

This value set ( is defined as part of HL7 v3.


Defining URL:
Version: 2018-08-12 2019-07-31
Name: v3.CodingRationale
Title: v3 Code System CodingRationale

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.

OID: 2.16.840.1.113883.1.11.19250 (for OID based terminology systems)
Source Resource XML / JSON

This value set is used in the following places:

  • CodeSystem: This value set is the designated 'entire code system' value set for v3.CodingRationale

This value set includes codes from the following code systems:


This expansion generated 01 Nov 2019 26 Mar 2020

This value set contains 8 concepts

Expansion based on version 2018-08-12 2019-07-31

All codes from system
Code Display Definition
O originally produced code Description: Originally produced code.
OR original and required Originally produced code, required by the specification describing the use of the coded concept.
P post-coded Description: Post-coded from free text source</description>
PR post-coded and required Post-coded from free text source, required by the specification describing the use of the coded concept.
R required Description: Required standard code for HL7.
HL7 HL7 Specified or Mandated HL7 Specified or Mandated
SH Both HL7 mandated and the original code Both HL7 mandated and the original code (precoordination)
SRC Source (or original) code Source (or original) code