{
  "resourceType": "StructureDefinition",
  "id": "ext-FormalResearch",
  "url": "https://vitalhub.com/fhir/StructureDefinition/ext-FormalResearch",
  "name": "FormalResearchExtension",
  "title": "Formal Research Extension",
  "status": "active",
  "publisher": "VitalHub",
  "description": "Extension to capture formal research details including type, period, REB, and linked document GUID.",
  "fhirVersion": "4.0.1",
  "kind": "complex-type",
  "abstract": false,
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "context": [
    {
      "type": "element",
      "expression": "Consent"
    }
  ],
  "differential": {
    "element": [
      {
        "id": "Extension",
        "path": "Extension",
        "short": "Formal Research",
        "definition": "Complex extension capturing research type, period, REB, and linked document GUID."
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "min": 1,
        "max": "1",
        "fixedUri": "https://vitalhub.com/fhir/StructureDefinition/ext-FormalResearch"
      },
      {
        "id": "Extension.valueBoolean",
        "path": "Extension.valueBoolean",
        "short": "Research",
        "definition": "True if opting in to research",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "boolean"
          }
        ]
      },
      {
        "id": "Extension.extension",
        "path": "Extension.extension",
        "min": 0,
        "max": "*",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "ordered": false,
          "rules": "open"
        }
      },
      {
        "id": "Extension.extension:type",
        "path": "Extension.extension",
        "sliceName": "type",
        "short": "Research type",
        "definition": "Type of formal research.",
        "min": 0,
        "max": "1"
      },
      {
        "id": "Extension.extension:type.url",
        "path": "Extension.extension.url",
        "min": 1,
        "max": "1",
        "fixedUri": "https://vitalhub.com/fhir/StructureDefinition/ext-FormalResearch#type"
      },
      {
        "id": "Extension.extension:type.valueCodeableConcept",
        "path": "Extension.extension.valueCodeableConcept",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "CodeableConcept"
          }
        ],
        "binding": {
          "strength": "required",
          "valueSet": "https://vitalhub.com/fhir/ValueSet/vs-ResearchType"
        }
      },
      {
        "id": "Extension.extension:start",
        "path": "Extension.extension",
        "sliceName": "start",
        "short": "Research start date/time",
        "definition": "Start date/time of the research period.",
        "min": 0,
        "max": "1"
      },
      {
        "id": "Extension.extension:start.url",
        "path": "Extension.extension.url",
        "min": 1,
        "max": "1",
        "fixedUri": "https://vitalhub.com/fhir/StructureDefinition/ext-FormalResearch#start"
      },
      {
        "id": "Extension.extension:start.valueDateTime",
        "path": "Extension.extension.valueDateTime",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "dateTime"
          }
        ]
      },
      {
        "id": "Extension.extension:end",
        "path": "Extension.extension",
        "sliceName": "end",
        "short": "Research end date/time",
        "definition": "End date/time of the research period.",
        "min": 0,
        "max": "1"
      },
      {
        "id": "Extension.extension:end.url",
        "path": "Extension.extension.url",
        "min": 1,
        "max": "1",
        "fixedUri": "https://vitalhub.com/fhir/StructureDefinition/ext-FormalResearch#end"
      },
      {
        "id": "Extension.extension:end.valueDateTime",
        "path": "Extension.extension.valueDateTime",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "dateTime"
          }
        ]
      },
      {
        "id": "Extension.extension:REB",
        "path": "Extension.extension",
        "sliceName": "REB",
        "short": "Research Ethics Board",
        "definition": "Research Ethics Board associated with the formal research.",
        "min": 0,
        "max": "1"
      },
      {
        "id": "Extension.extension:REB.url",
        "path": "Extension.extension.url",
        "min": 1,
        "max": "1",
        "fixedUri": "https://vitalhub.com/fhir/StructureDefinition/ext-FormalResearch#REB"
      },
      {
        "id": "Extension.extension:REB.valueCodeableConcept",
        "path": "Extension.extension.valueCodeableConcept",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "CodeableConcept"
          }
        ],
        "binding": {
          "strength": "required",
          "valueSet": "https://vitalhub.com/fhir/ValueSet/vs-ResearchREB"
        }
      },
      {
        "id": "Extension.extension:linkedDocumentGUID",
        "path": "Extension.extension",
        "sliceName": "linkedDocumentGUID",
        "short": "Linked document GUID",
        "definition": "GUID linking this research record to its supporting document (from ext-Document).",
        "min": 0,
        "max": "1"
      },
      {
        "id": "Extension.extension:linkedDocumentGUID.url",
        "path": "Extension.extension.url",
        "min": 1,
        "max": "1",
        "fixedUri": "https://vitalhub.com/fhir/StructureDefinition/ext-FormalResearch#linkedDocumentGUID"
      },
      {
        "id": "Extension.extension:linkedDocumentGUID.valueUri",
        "path": "Extension.extension.valueUri",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "uri"
          }
        ]
      }
    ]
  }
}