Explore and Make use of Nationally Defined Messaging APIs

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  "resourceType": "SearchParameter",
  "id": "eRS-SlotAppointmentType-1",
  "url": "https://fhir.nhs.uk/STU3/SearchParameter/eRS-SlotAppointmentType-1",
  "version": "1.0.0",
  "name": "eRS Slot Appointment Type",
  "status": "draft",
  "date": "2020-07-07",
  "publisher": "NHS Digital",
  "contact": [
      "name": "Interoperability Team",
      "telecom": [
          "system": "email",
          "value": "interoperabilityteam@nhs.net",
          "use": "work"
  "purpose": "This search parameter has been defined to enable the ability to search a slot appointment type.",
  "code": "Slot.appointmentType",
  "base": [
  "type": "token",
  "description": "A search parameter to filter slots using the value in the appointment type.",
  "expression": "Slot.appointmentType",
  "xpath": "f:Slot/f:appointmentType",
  "xpathUsage": "normal",
  "comparator": [
  "modifier": [