{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/solventum/main/json-schema/solventum-clinical-encounter-schema.json",
  "title": "ClinicalEncounter",
  "description": "A clinical encounter record submitted for computer-assisted coding and DRG grouping by Solventum Health Information Systems.",
  "type": "object",
  "properties": {
    "encounterId": {
      "type": "string",
      "description": "Unique identifier for the encounter"
    },
    "patientId": {
      "type": "string",
      "description": "De-identified patient identifier"
    },
    "facilityId": {
      "type": "string",
      "description": "Healthcare facility identifier"
    },
    "encounterType": {
      "type": "string",
      "enum": ["inpatient", "outpatient", "emergency", "ambulatory", "observation"],
      "description": "Type of clinical encounter"
    },
    "admissionDate": {
      "type": "string",
      "format": "date",
      "description": "Date of admission (inpatient) or encounter date"
    },
    "dischargeDate": {
      "type": "string",
      "format": "date",
      "description": "Date of discharge (inpatient encounters)"
    },
    "dischargeDisposition": {
      "type": "string",
      "description": "Patient discharge disposition code"
    },
    "patientAge": {
      "type": "integer",
      "description": "Patient age in years at time of encounter"
    },
    "patientSex": {
      "type": "string",
      "enum": ["M", "F", "U"],
      "description": "Patient biological sex"
    },
    "attendingPhysician": {
      "type": "object",
      "description": "Attending physician information",
      "properties": {
        "npi": { "type": "string", "description": "National Provider Identifier" },
        "specialty": { "type": "string", "description": "Physician specialty" }
      }
    },
    "diagnoses": {
      "type": "array",
      "description": "List of diagnoses for coding",
      "items": {
        "type": "object",
        "properties": {
          "code": { "type": "string", "description": "ICD-10-CM diagnosis code" },
          "description": { "type": "string", "description": "Diagnosis description" },
          "type": { "type": "string", "enum": ["principal", "secondary", "admitting", "external-cause"], "description": "Diagnosis type" },
          "poa": { "type": "string", "enum": ["Y", "N", "U", "W", "1"], "description": "Present on admission indicator" }
        }
      }
    },
    "procedures": {
      "type": "array",
      "description": "List of procedures performed",
      "items": {
        "type": "object",
        "properties": {
          "code": { "type": "string", "description": "ICD-10-PCS or CPT procedure code" },
          "description": { "type": "string", "description": "Procedure description" },
          "type": { "type": "string", "enum": ["principal", "secondary"], "description": "Procedure type" },
          "performedDate": { "type": "string", "format": "date", "description": "Date procedure was performed" }
        }
      }
    },
    "clinicalNotes": {
      "type": "array",
      "description": "Unstructured clinical documentation for NLP-based coding",
      "items": {
        "type": "object",
        "properties": {
          "noteType": { "type": "string", "description": "Type of note (H&P, discharge summary, operative, etc.)" },
          "content": { "type": "string", "description": "Note content text" },
          "author": { "type": "string", "description": "Note author NPI" },
          "dateTime": { "type": "string", "format": "date-time", "description": "Note creation timestamp" }
        }
      }
    }
  },
  "required": ["encounterId", "encounterType", "admissionDate"]
}