{
  "resourceType": "StructureDefinition",
  "id": "valueset-usage",
  "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/valueset-usage",
  "name": "usage",
  "status": "draft",
  "publisher": "HL7",
  "description": "Consumers of the value set and the implementations, projects or standards that the author has utilized the value set in.",
  "fhirVersion": "3.0.0",
  "mapping": [
    {
      "identity": "rim",
      "uri": "http://hl7.org/v3",
      "name": "RIM Mapping"
    }
  ],
  "kind": "complex-type",
  "abstract": false,
  "contextType": "resource",
  "context": [
    "ValueSet"
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Extension",
        "path": "Extension",
        "short": "Who has used and how?",
        "definition": "Consumers of the value set and the implementations, projects or standards that the author has utilized the value set in.",
        "comment": "This is likely to be a point-in-time view and should not be considered an authoritative listing of all uses of the value set.",
        "min": 0,
        "max": "*",
        "isModifier": false
      },
      {
        "id": "Extension.extension:user",
        "path": "Extension.extension",
        "sliceName": "user",
        "short": "A consumer of or client for the value set",
        "definition": "This is most likely to be an organization but can be an individual. It would not be a program, that information should be recorded in the usage.use.",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "Extension"
          }
        ],
        "isModifier": false
      },
      {
        "id": "Extension.extension:user.extension",
        "path": "Extension.extension.extension",
        "max": "0"
      },
      {
        "id": "Extension.extension:user.url",
        "path": "Extension.extension.url",
        "type": [
          {
            "code": "uri"
          }
        ],
        "fixedUri": "user"
      },
      {
        "id": "Extension.extension:user.valueString",
        "path": "Extension.extension.valueString",
        "type": [
          {
            "code": "string"
          }
        ]
      },
      {
        "id": "Extension.extension:use",
        "path": "Extension.extension",
        "sliceName": "use",
        "short": "Implementation/project/standard that uses value set",
        "definition": "A descriptive name of the project or standard in which the value set is used.",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "Extension"
          }
        ],
        "isModifier": false
      },
      {
        "id": "Extension.extension:use.extension",
        "path": "Extension.extension.extension",
        "max": "0"
      },
      {
        "id": "Extension.extension:use.url",
        "path": "Extension.extension.url",
        "type": [
          {
            "code": "uri"
          }
        ],
        "fixedUri": "use"
      },
      {
        "id": "Extension.extension:use.valueString",
        "path": "Extension.extension.valueString",
        "type": [
          {
            "code": "string"
          }
        ]
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "type": [
          {
            "code": "uri"
          }
        ],
        "fixedUri": "http://hl7.org/fhir/StructureDefinition/valueset-usage"
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "min": 0,
        "max": "0"
      }
    ]
  }
}