http://hl7.org/fhir/StructureDefinition/valueset-activityStatusDate|5.2.0

The date when the associated Value Set Definition Version activity status is in effect.
{
  "description": "The date when the associated Value Set Definition Version activity status is in effect.",
  "package": "hl7.fhir.uv.extensions.r4@5.2.0",
  "date": "2019-10-31T22:29:23Z",
  "derivation": "constraint",
  "publisher": "HL7 International / Terminology Infrastructure",
  "fhirVersion": "4.0.1",
  "jurisdiction": [ {
    "coding": [ {
      "code": "001",
      "system": "http://unstats.un.org/unsd/methods/m49/m49.htm"
    } ]
  } ],
  "name": "ActivityStatusDate",
  "mapping": [ {
    "uri": "http://hl7.org/v3",
    "name": "RIM Mapping",
    "identity": "rim"
  } ],
  "abstract": false,
  "type": "Extension",
  "experimental": null,
  "resourceType": "StructureDefinition",
  "fhirversion": null,
  "title": "Activity Status Date",
  "versionAlgorithmCoding": null,
  "extension": [ {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode": "vocab"
  }, {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
    "valueInteger": 1
  }, {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
    "valueCode": "deprecated",
    "_valueCode": {
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status-reason",
        "valueMarkdown": "The status of this extension is unclear, and it's being reviewed"
      } ]
    }
  }, {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-type-characteristics",
    "valueCode": "can-bind"
  } ],
  "status": "retired",
  "id": "49a36b4f-4811-57d2-a696-df0c93507f8c",
  "kind": "complex-type",
  "url": "http://hl7.org/fhir/StructureDefinition/valueset-activityStatusDate",
  "identifier": null,
  "context": [ {
    "type": "element",
    "expression": "ValueSet"
  } ],
  "versionAlgorithmString": null,
  "fhir_id": null,
  "version": "5.2.0",
  "contact": [ {
    "telecom": [ {
      "value": "http://www.hl7.org/Special/committees/Vocab",
      "system": "url"
    } ]
  } ],
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension"
}