{
  "description": "The service request this appointment is allocated to assess",
  "_filename": "SearchParameter-Appointment-based-on.json",
  "package_name": "hl7.fhir.core",
  "date": "2018-08-19T21:48:56+10:00",
  "expression": "Appointment.basedOn.where(resolve() is ServiceRequest)",
  "modifier": [ "missing", "type", "identifier" ],
  "publisher": "Health Level Seven International (Patient Administration)",
  "multipleAnd": true,
  "multipleOr": true,
  "name": "based-on",
  "xpath": "f:Appointment/f:basedOn",
  "xpathUsage": "normal",
  "type": "reference",
  "experimental": "false",
  "resourceType": "SearchParameter",
  "title": null,
  "package_version": "3.5.0",
  "extension": [ {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
    "valueString": "Trial Use"
  } ],
  "status": "draft",
  "id": "15f12c3b-61b9-4e58-8f3f-040cba6b4831",
  "kind": null,
  "url": "http://hl7.org/fhir/SearchParameter/Appointment-based-on",
  "code": "based-on",
  "target": [ "ServiceRequest" ],
  "base": [ "Appointment" ],
  "version": null,
  "contact": [ {
    "telecom": [ {
      "value": "http://hl7.org/fhir",
      "system": "url"
    } ]
  }, {
    "telecom": [ {
      "value": "http://www.hl7.org/Special/committees/pafm/index.cfm",
      "system": "url"
    } ]
  } ]
}