{
  "resourceType": "StructureDefinition",
  "id": "signal-service-request-no-of-units",
  "url": "https://signalbhn.org/fhir/StructureDefinition/SignalServiceRequestNoOfUnits",
  "name": "SignalServiceRequestNoOfUnits",
  "status": "draft",
  "fhirVersion": "4.0.1",
  "kind": "complex-type",
  "abstract": false,
  "context": [
    {
      "type": "element",
      "expression": "ServiceRequest"
    }
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "fixedUri": "https://signalbhn.org/fhir/StructureDefinition/SignalServiceRequestNoOfUnits"
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "short": "Limit on number of units per procedure code",
        "definition": "Limit on number of units per procedure code, if appropirate",
        "type": [
          {
            "code": "integer"
          }
        ]
      }
    ]
  }
}