This page is part of the FHIR Specification (v3.5.0: R4 Ballot #2). The current version which supercedes this version is 5.0.0.  For a full list of available versions, see the Directory of published versions  . Page versions: R4B R4 R3
. Page versions: R4B R4 R3
| Vocabulary Work Group | Maturity Level: 1 | Informative | Use Context: Any | 
URL for this extension:
http://hl7.org/fhir/StructureDefinition/codesystem-history
Status: draft. Extension maintained by: HL7
Information on changes made to the Value Set Definition over time, and also has a contained audit trail of all such changes.
Context of Use: Use on Element ID CodeSystem
usage info: insert a list of places where this extension is used
Summary
| Name | Flags | Card. | Type | Description & Constraints  | 
|---|---|---|---|---|
|   history | 0..* | Extension | URL = http://hl7.org/fhir/StructureDefinition/codesystem-history history: Information on changes made to the Value Set Definition over time, and also has a contained audit trail of all such changes. Use on Element ID CodeSystem | |
|    extension | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
|    extension | 0..1 | Extension | The name of this set of history entries | |
|     extension | 0..0 | |||
|     url | 1..1 | uri | "name" | |
|     valueString | 0..1 | string | Value of extension | |
|    extension | 0..* | Extension | Audit of all changes for a history entry | |
|     extension | 0..0 | |||
|     extension | 1..1 | Extension | Date the change was made | |
|      extension | 0..0 | |||
|      url | 1..1 | uri | "date" | |
|      valueDateTime | 0..1 | dateTime | Value of extension | |
|     extension | 1..1 | Extension | Version marker after the change was made | |
|      extension | 0..0 | |||
|      url | 1..1 | uri | "id" | |
|      valueString | 0..1 | string | Value of extension | |
|     extension | 1..1 | Extension | Who made the change | |
|      extension | 0..0 | |||
|      url | 1..1 | uri | "author" | |
|      valueString | 0..1 | string | Value of extension | |
|     extension | 0..1 | Extension | Information about the change | |
|      extension | 0..0 | |||
|      url | 1..1 | uri | "notes" | |
|      valueString | 0..1 | string | Value of extension | |
|     url | 1..1 | uri | "revision" | |
|     value[x] | 0..0 | |||
|    url | 1..1 | uri | "http://hl7.org/fhir/StructureDefinition/codesystem-history" | |
|    value[x] | 0..0 | |||
|  Documentation for this format | ||||
Full Structure
| Name | Flags | Card. | Type | Description & Constraints  | 
|---|---|---|---|---|
|   extension | 0..* | Extension | URL = http://hl7.org/fhir/StructureDefinition/codesystem-history history: Information on changes made to the Value Set Definition over time, and also has a contained audit trail of all such changes. Use on Element ID CodeSystem | |
|    extension | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
|    extension | 0..1 | Extension | The name of this set of history entries | |
|     extension | 0..0 | |||
|     url | 1..1 | uri | "name" | |
|     valueString | 0..1 | string | Value of extension | |
|    extension | 0..* | Extension | Audit of all changes for a history entry | |
|     extension | 0..0 | |||
|     extension | 1..1 | Extension | Date the change was made | |
|      extension | 0..0 | |||
|      url | 1..1 | uri | "date" | |
|      valueDateTime | 0..1 | dateTime | Value of extension | |
|     extension | 1..1 | Extension | Version marker after the change was made | |
|      extension | 0..0 | |||
|      url | 1..1 | uri | "id" | |
|      valueString | 0..1 | string | Value of extension | |
|     extension | 1..1 | Extension | Who made the change | |
|      extension | 0..0 | |||
|      url | 1..1 | uri | "author" | |
|      valueString | 0..1 | string | Value of extension | |
|     extension | 0..1 | Extension | Information about the change | |
|      extension | 0..0 | |||
|      url | 1..1 | uri | "notes" | |
|      valueString | 0..1 | string | Value of extension | |
|     url | 1..1 | uri | "revision" | |
|     value[x] | 0..0 | |||
|    url | 1..1 | uri | "http://hl7.org/fhir/StructureDefinition/codesystem-history" | |
|    value[x] | 0..0 | |||
|  Documentation for this format | ||||
XML Template
<!-- history --><extension xmlns="http://hl7.org/fhir" url="http://hl7.org/fhir/StructureDefinition/codesystem-history" > <-- extension sliced by value:url in the specified orderOpen--> <extension url="name"> 0..1 Extension <!-- 0..1 The name of this set of history entries --> <valueString value="[string]"/><!-- 0..1 Value of extension --> </extension> <extension url="revision"> 0..* Extension <!-- 0..* Audit of all changes for a history entry --> <value[x]><!-- 0..0 base64Binary|boolean|canonical|code| date|dateTime|decimal|id|instant|integer|markdown|oid|positiveInt|string| time|unsignedInt|uri|url|uuid|Address|Age|Annotation|Attachment| CodeableConcept|Coding|ContactPoint|Count|Distance|Duration|HumanName| Identifier|Money|Period|Quantity|Range|Ratio|Reference|SampledData|Signature| Timing|ParameterDefinition|DataRequirement|RelatedArtifact|ContactDetail| Contributor|TriggerDefinition|Expression|UsageContext|Dosage Value of extension --></value[x]> </extension> </extension>
JSON Template
{ // history
    "extension" : [ //  sliced by value:url  in the specified order, Open 
      { // The name of this set of history entries //
        // from Element: extension
        "extension" : [ //  sliced by value:url  in the specified order, Open ]
        "url" : "name", // R! 
        "valueString" : "<string>" //Value of extension
      },
      { // Audit of all changes for a history entry //
        // from Element: extension
        "extension" : [ //  sliced by value:url  in the specified order, Open ]
        "url" : "revision" // R! 
// value[x]: Value of extension. One of these 49:
      }
    ],
    "url" : "http://hl7.org/fhir/StructureDefinition/codesystem-history", // R! 
// value[x]: Value of extension. One of these 49:
  }
 Summary
| Name | Flags | Card. | Type | Description & Constraints  | 
|---|---|---|---|---|
|   history | 0..* | Extension | URL = http://hl7.org/fhir/StructureDefinition/codesystem-history history: Information on changes made to the Value Set Definition over time, and also has a contained audit trail of all such changes. Use on Element ID CodeSystem | |
|    extension | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
|    extension | 0..1 | Extension | The name of this set of history entries | |
|     extension | 0..0 | |||
|     url | 1..1 | uri | "name" | |
|     valueString | 0..1 | string | Value of extension | |
|    extension | 0..* | Extension | Audit of all changes for a history entry | |
|     extension | 0..0 | |||
|     extension | 1..1 | Extension | Date the change was made | |
|      extension | 0..0 | |||
|      url | 1..1 | uri | "date" | |
|      valueDateTime | 0..1 | dateTime | Value of extension | |
|     extension | 1..1 | Extension | Version marker after the change was made | |
|      extension | 0..0 | |||
|      url | 1..1 | uri | "id" | |
|      valueString | 0..1 | string | Value of extension | |
|     extension | 1..1 | Extension | Who made the change | |
|      extension | 0..0 | |||
|      url | 1..1 | uri | "author" | |
|      valueString | 0..1 | string | Value of extension | |
|     extension | 0..1 | Extension | Information about the change | |
|      extension | 0..0 | |||
|      url | 1..1 | uri | "notes" | |
|      valueString | 0..1 | string | Value of extension | |
|     url | 1..1 | uri | "revision" | |
|     value[x] | 0..0 | |||
|    url | 1..1 | uri | "http://hl7.org/fhir/StructureDefinition/codesystem-history" | |
|    value[x] | 0..0 | |||
|  Documentation for this format | ||||
Full Structure
| Name | Flags | Card. | Type | Description & Constraints  | 
|---|---|---|---|---|
|   extension | 0..* | Extension | URL = http://hl7.org/fhir/StructureDefinition/codesystem-history history: Information on changes made to the Value Set Definition over time, and also has a contained audit trail of all such changes. Use on Element ID CodeSystem | |
|    extension | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
|    extension | 0..1 | Extension | The name of this set of history entries | |
|     extension | 0..0 | |||
|     url | 1..1 | uri | "name" | |
|     valueString | 0..1 | string | Value of extension | |
|    extension | 0..* | Extension | Audit of all changes for a history entry | |
|     extension | 0..0 | |||
|     extension | 1..1 | Extension | Date the change was made | |
|      extension | 0..0 | |||
|      url | 1..1 | uri | "date" | |
|      valueDateTime | 0..1 | dateTime | Value of extension | |
|     extension | 1..1 | Extension | Version marker after the change was made | |
|      extension | 0..0 | |||
|      url | 1..1 | uri | "id" | |
|      valueString | 0..1 | string | Value of extension | |
|     extension | 1..1 | Extension | Who made the change | |
|      extension | 0..0 | |||
|      url | 1..1 | uri | "author" | |
|      valueString | 0..1 | string | Value of extension | |
|     extension | 0..1 | Extension | Information about the change | |
|      extension | 0..0 | |||
|      url | 1..1 | uri | "notes" | |
|      valueString | 0..1 | string | Value of extension | |
|     url | 1..1 | uri | "revision" | |
|     value[x] | 0..0 | |||
|    url | 1..1 | uri | "http://hl7.org/fhir/StructureDefinition/codesystem-history" | |
|    value[x] | 0..0 | |||
|  Documentation for this format | ||||
XML Template
<!-- history --><extension xmlns="http://hl7.org/fhir" url="http://hl7.org/fhir/StructureDefinition/codesystem-history" > <-- extension sliced by value:url in the specified orderOpen--> <extension url="name"> 0..1 Extension <!-- 0..1 The name of this set of history entries --> <valueString value="[string]"/><!-- 0..1 Value of extension --> </extension> <extension url="revision"> 0..* Extension <!-- 0..* Audit of all changes for a history entry --> <value[x]><!-- 0..0 base64Binary|boolean|canonical|code| date|dateTime|decimal|id|instant|integer|markdown|oid|positiveInt|string| time|unsignedInt|uri|url|uuid|Address|Age|Annotation|Attachment| CodeableConcept|Coding|ContactPoint|Count|Distance|Duration|HumanName| Identifier|Money|Period|Quantity|Range|Ratio|Reference|SampledData|Signature| Timing|ParameterDefinition|DataRequirement|RelatedArtifact|ContactDetail| Contributor|TriggerDefinition|Expression|UsageContext|Dosage Value of extension --></value[x]> </extension> </extension>
JSON Template
{ // history
    "extension" : [ //  sliced by value:url  in the specified order, Open 
      { // The name of this set of history entries //
        // from Element: extension
        "extension" : [ //  sliced by value:url  in the specified order, Open ]
        "url" : "name", // R! 
        "valueString" : "<string>" //Value of extension
      },
      { // Audit of all changes for a history entry //
        // from Element: extension
        "extension" : [ //  sliced by value:url  in the specified order, Open ]
        "url" : "revision" // R! 
// value[x]: Value of extension. One of these 49:
      }
    ],
    "url" : "http://hl7.org/fhir/StructureDefinition/codesystem-history", // R! 
// value[x]: Value of extension. One of these 49:
  }
 
Constraints