# Codesystem versionIntroduced - HL7 v2.9.1 Vocabulary v0.2.0

* [**Table of Contents**](toc.md)
* [**Artifacts Summary**](artifacts.md)
* **Codesystem versionIntroduced**

## Extension: Codesystem versionIntroduced (Experimental) 

| | |
| :--- | :--- |
| *Official URL*:http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-versionIntroduced | *Version*:1.0.0 |
| Draft as of 2026-03-13 | *Computable Name*:versionIntroduced |

extension for versionIntroduced

**Context of Use**

**Usage info**

**Usages:**

* This Extension is not used by any profiles in this Implementation Guide

You can also check for [usages in the FHIR IG Statistics](https://packages2.fhir.org/xig/hl7.v2.uv.terminology.v291|current/StructureDefinition/codesystem-versionIntroduced)

### Formal Views of Extension Content

 [Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work](http://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#structure-definitions). 

 

Other representations of profile: [CSV](StructureDefinition-codesystem-versionIntroduced.csv), [Excel](StructureDefinition-codesystem-versionIntroduced.xlsx), [Schematron](StructureDefinition-codesystem-versionIntroduced.sch) 

#### Constraints



## Resource Content

```json
{
  "resourceType" : "StructureDefinition",
  "id" : "codesystem-versionIntroduced",
  "url" : "http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-versionIntroduced",
  "version" : "1.0.0",
  "name" : "versionIntroduced",
  "title" : "Codesystem versionIntroduced",
  "status" : "draft",
  "experimental" : true,
  "date" : "2026-03-13T11:04:57+00:00",
  "publisher" : "HL7/FO",
  "contact" : [{
    "name" : "HL7/FO",
    "telecom" : [{
      "system" : "url",
      "value" : "http://www.hl7.org"
    }]
  }],
  "description" : "extension for versionIntroduced",
  "fhirVersion" : "4.0.1",
  "mapping" : [{
    "identity" : "rim",
    "uri" : "http://hl7.org/v3",
    "name" : "RIM Mapping"
  }],
  "kind" : "complex-type",
  "abstract" : false,
  "context" : [{
    "type" : "element",
    "expression" : "CodeSystem"
  }],
  "type" : "Extension",
  "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation" : "constraint",
  "differential" : {
    "element" : [{
      "id" : "Extension",
      "path" : "Extension",
      "min" : 0,
      "max" : "1"
    },
    {
      "id" : "Extension.extension",
      "path" : "Extension.extension",
      "max" : "0"
    },
    {
      "id" : "Extension.url",
      "path" : "Extension.url",
      "fixedUri" : "http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-versionIntroduced",
      "isModifier" : false,
      "isSummary" : false
    },
    {
      "id" : "Extension.value[x]",
      "path" : "Extension.value[x]",
      "min" : 1,
      "type" : [{
        "code" : "string"
      }]
    }]
  }
}

```
