{
  "resourceType": "OperationDefinition",
  "id": "List-find",
  "extension": [
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
      "valueInteger": 1
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
      "valueCode": "trial-use"
    }
  ],
  "url": "http://hl7.org/fhir/OperationDefinition/List-find",
  "version": "4.0.1",
  "name": "Find a functional list",
  "status": "draft",
  "kind": "operation",
  "date": "2019-11-01T09:29:23+11:00",
  "publisher": "HL7 (FHIR Project)",
  "contact": [
    {
      "telecom": [
        {
          "system": "url",
          "value": "http://hl7.org/fhir"
        },
        {
          "system": "email",
          "value": "fhir@lists.hl7.org"
        }
      ]
    }
  ],
  "description": "This operation allows a client to find an identified list for a particular function by its function. The operation takes two parameters, the identity of a patient, and the name of a functional list.     The list of defined functional lists can be found at [Current Resource Lists](lifecycle.html#lists). Applications are not required to support all the lists, and may define additional lists of their own.   If the system is able to locate a list that serves the identified purpose, it returns it as the body of the response with a 200 OK status. If the resource cannot be located, the server returns a 404 not found (optionally with an OperationOutcome resource)",
  "code": "find",
  "comment": "Note that servers may support searching by a functional list, and not support this operation that allows clients to find the list directly",
  "resource": [
    "List"
  ],
  "system": false,
  "type": true,
  "instance": false,
  "parameter": [
    {
      "name": "patient",
      "use": "in",
      "min": 1,
      "max": "1",
      "documentation": "The id of a patient resource located on the server on which this operation is executed",
      "type": "id"
    },
    {
      "name": "name",
      "use": "in",
      "min": 1,
      "max": "1",
      "documentation": "The code for the functional list that is being found",
      "type": "code"
    }
  ]
}