{
  "resourceType": "StructureDefinition",
  "id": "ext-identifierversion",
  "meta": {
    "lastUpdated": "2021-03-29T18:22:30.641+00:00"
  },
  "url": "http://hl7.org/fhir/ca/baseline/StructureDefinition/ext-identifierversion",
  "version": "0.0.0",
  "name": "ExtensionIdentifierVersion",
  "title": "Extension: Identifier Version",
  "status": "draft",
  "date": "2019-03-08",
  "publisher": "HL7 Canada",
  "description": "A version string indicating the currency/validity of an identifier",
  "kind": "complex-type",
  "abstract": false,
  "context": [
    {
      "type": "element",
      "expression": "Patient.identifier"
    }
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Extension",
        "path": "Extension",
        "definition": "A code indicating a specific version of an identifier credential",
        "comment": "For example, a health card version number, credit card version number, etc.  Used to help verify the authenticity of a credential",
        "max": "1",
        "mustSupport": false
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "fixedUri": "http://hl7.org/fhir/ca/baseline/StructureDefinition/ext-identifierversion"
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "slicing": {
          "discriminator": [
            {
              "type": "type",
              "path": "$this"
            }
          ],
          "rules": "closed"
        },
        "type": [
          {
            "code": "string"
          }
        ]
      },
      {
        "id": "Extension.value[x]:valueString",
        "path": "Extension.value[x]",
        "sliceName": "valueString",
        "min": 1,
        "type": [
          {
            "code": "string"
          }
        ],
        "mustSupport": true
      }
    ]
  }
}