# Codesystem versionHistory - HL7 v2.9 Vocabulary v0.2.0

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

## Extension: Codesystem versionHistory (Experimental) 

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

extension for versionHistory

**Context of Use**

**Usage info**

**Usages:**

* Examples for this Extension: [Accept-applicationAcknowledgmentConditions](CodeSystem-accept-applicationAcknowledgmentConditions.md), [AccessRestrictionValue](CodeSystem-accessRestrictionValue.md), [AcknowledgmentCodes](CodeSystem-acknowledgmentCodes.md), [ActMood](CodeSystem-actMood.md)... Show 46 more, [ActionTakenInResponseToTheEvent](CodeSystem-actionTakenInResponseToTheEvent.md), [Active-inactive](CodeSystem-active-inactive.md), [Actpriority](CodeSystem-actpriority.md), [AdditivePreservative](CodeSystem-additivePreservative.md), [AddressExpirationReason](CodeSystem-addressExpirationReason.md), [AddressType](CodeSystem-addressType.md), [AddressUsage](CodeSystem-addressUsage.md), [AdjustmentAction](CodeSystem-adjustmentAction.md), [AdjustmentCategory](CodeSystem-adjustmentCategory.md), [AdministrationDevice](CodeSystem-administrationDevice.md), [AdministrationMethod](CodeSystem-administrationMethod.md), [AdministrativeSex](CodeSystem-administrativeSex.md), [AdmissionLevelOfCare](CodeSystem-admissionLevelOfCare.md), [AdmissionType](CodeSystem-admissionType.md), [AdvancedBeneficiaryNotice](CodeSystem-advancedBeneficiaryNotice.md), [AlertDevice](CodeSystem-alertDevice.md), [AlertLevel](CodeSystem-alertLevel.md), [AllergenType](CodeSystem-allergenType.md), [AllergyClinicalStatus](CodeSystem-allergyClinicalStatus.md), [AllergySeverity](CodeSystem-allergySeverity.md), [AllowSubstitution](CodeSystem-allowSubstitution.md), [AlternateCharacterSetHandlingScheme](CodeSystem-alternateCharacterSetHandlingScheme.md), [AlternateCharacterSets](CodeSystem-alternateCharacterSets.md), [AmbulatoryPaymentClassification](CodeSystem-ambulatoryPaymentClassification.md), [AmbulatoryStatus](CodeSystem-ambulatoryStatus.md), [AmountClass](CodeSystem-amountClass.md), [AmountType](CodeSystem-amountType.md), [AnalyteRepeatStatus](CodeSystem-analyteRepeatStatus.md), [Annotations](CodeSystem-annotations.md), [AppointmentReason](CodeSystem-appointmentReason.md), [AppointmentType](CodeSystem-appointmentType.md), [ArmStick](CodeSystem-armStick.md), [ArrivalMode](CodeSystem-arrivalMode.md), [ArtificialBlood](CodeSystem-artificialBlood.md), [AssignmentOfBenefits](CodeSystem-assignmentOfBenefits.md), [AuthorizationMode](CodeSystem-authorizationMode.md), [Auto-DilutionType](CodeSystem-auto-DilutionType.md), [BedStatus](CodeSystem-bedStatus.md), [BloodProduct](CodeSystem-bloodProduct.md), [BloodProductDispenseStatus](CodeSystem-bloodProductDispenseStatus.md), [BloodProductProcessingRequirements](CodeSystem-bloodProductProcessingRequirements.md), [BloodProductTransfusion-dispositionStatus](CodeSystem-bloodProductTransfusion-dispositionStatus.md), [BloodUnitType](CodeSystem-bloodUnitType.md), [BodyParts](CodeSystem-bodyParts.md), [BodySite](CodeSystem-bodySite.md) and [BodySiteModifier](CodeSystem-bodySiteModifier.md)

You can also check for [usages in the FHIR IG Statistics](https://packages2.fhir.org/xig/hl7.v2.uv.terminology.v29|current/StructureDefinition/codesystem-versionHistory)

### 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-versionHistory.csv), [Excel](StructureDefinition-codesystem-versionHistory.xlsx), [Schematron](StructureDefinition-codesystem-versionHistory.sch) 

#### Constraints



## Resource Content

```json
{
  "resourceType" : "StructureDefinition",
  "id" : "codesystem-versionHistory",
  "url" : "http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-versionHistory",
  "version" : "1.0.0",
  "name" : "versionHistory",
  "title" : "Codesystem versionHistory",
  "status" : "draft",
  "experimental" : true,
  "date" : "2026-03-13T11:11:50+00:00",
  "publisher" : "HL7/FO",
  "contact" : [{
    "name" : "HL7/FO",
    "telecom" : [{
      "system" : "url",
      "value" : "http://www.hl7.org"
    }]
  }],
  "description" : "extension for versionHistory",
  "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-versionHistory",
      "isModifier" : false,
      "isSummary" : false
    },
    {
      "id" : "Extension.value[x]",
      "path" : "Extension.value[x]",
      "min" : 1,
      "type" : [{
        "code" : "string"
      }]
    }]
  }
}

```
