{
  "resourceType": "StructureDefinition",
  "id": "capabilitystatement2-search-parameter-combination",
  "extension": [
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
      "valueCode": "fhir"
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
      "valueInteger": 1
    }
  ],
  "url": "http://hl7.org/fhir/StructureDefinition/capabilitystatement2-search-parameter-combination",
  "version": "4.6.0",
  "name": "search-parameter-combination",
  "title": "Search Parameter Combination",
  "status": "draft",
  "date": "2014-04-12",
  "publisher": "Health Level Seven, Inc. - [WG Name] WG",
  "contact": [
    {
      "telecom": [
        {
          "system": "url",
          "value": "http://hl7.org/special/committees/fhir.htm"
        }
      ]
    }
  ],
  "description": "This extension defines a possible search parameter combination,  by listing a set of search parameters and indicating whether they are required or optional. If a search combination is specified, clients should expect that they must submit a search that meets one of the required combinations or the search will be unsuccessful. If multiple search parameter combinations are specified, a client may pick between them, and supply the minimal required parameters for any of the combinations.",
  "fhirVersion": "4.6.0",
  "mapping": [
    {
      "identity": "v2",
      "uri": "http://hl7.org/v2",
      "name": "HL7 v2 Mapping"
    },
    {
      "identity": "rim",
      "uri": "http://hl7.org/v3",
      "name": "RIM Mapping"
    }
  ],
  "kind": "complex-type",
  "abstract": false,
  "context": [
    {
      "type": "element",
      "expression": "CapabilityStatement2.rest.resource"
    }
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Extension",
        "path": "Extension",
        "short": "An allowable parameter combination",
        "definition": "This extension defines a possible search parameter combination,  by listing a set of search parameters and indicating whether they are required or optional. If a search combination is specified, clients should expect that they must submit a search that meets one of the required combinations or the search will be unsuccessful. If multiple search parameter combinations are specified, a client may pick between them, and supply the minimal required parameters for any of the combinations.",
        "comment": "For example, on the Patient Resource  you could use this to state support for searching by Patient.name and Patient.gender is required.",
        "min": 0,
        "max": "*",
        "isModifier": false,
        "mapping": [
          {
            "identity": "v2",
            "map": "N/A"
          },
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:required",
        "path": "Extension.extension",
        "sliceName": "required",
        "short": "A required search parameter name",
        "definition": "A search parameter name in the combination which is required.",
        "min": 1,
        "max": "*",
        "type": [
          {
            "code": "Extension"
          }
        ],
        "isModifier": false,
        "mapping": [
          {
            "identity": "v2",
            "map": "N/A"
          },
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:required.extension",
        "path": "Extension.extension.extension",
        "max": "0"
      },
      {
        "id": "Extension.extension:required.url",
        "path": "Extension.extension.url",
        "type": [
          {
            "code": "uri"
          }
        ],
        "fixedUri": "required"
      },
      {
        "id": "Extension.extension:required.value[x]",
        "path": "Extension.extension.value[x]",
        "min": 1,
        "type": [
          {
            "code": "string"
          }
        ]
      },
      {
        "id": "Extension.extension:optional",
        "path": "Extension.extension",
        "sliceName": "optional",
        "short": "An optional search parameter name",
        "definition": "A search parameter name in the combination which is optional.",
        "comment": "If a defined parameter is not listed as a required or optional parameter, the implication is that the parameter is not supported with this combination. Servers may ignore It, though some may return an error if it is used.",
        "min": 0,
        "max": "*",
        "type": [
          {
            "code": "Extension"
          }
        ],
        "isModifier": false,
        "mapping": [
          {
            "identity": "v2",
            "map": "N/A"
          },
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:optional.extension",
        "path": "Extension.extension.extension",
        "max": "0"
      },
      {
        "id": "Extension.extension:optional.url",
        "path": "Extension.extension.url",
        "type": [
          {
            "code": "uri"
          }
        ],
        "fixedUri": "optional"
      },
      {
        "id": "Extension.extension:optional.value[x]",
        "path": "Extension.extension.value[x]",
        "min": 1,
        "type": [
          {
            "code": "string"
          }
        ]
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "fixedUri": "http://hl7.org/fhir/StructureDefinition/capabilitystatement2-search-parameter-combination"
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "min": 0,
        "max": "0"
      }
    ]
  }
}