{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://schema.org/schemas/medical-condition.json",
  "title": "Schema.org MedicalCondition",
  "description": "Any condition of the human body that affects the normal functioning of a person, whether physically or mentally.",
  "type": "object",
  "required": ["@type", "name"],
  "properties": {
    "@type": {
      "type": "string",
      "description": "The Schema.org type.",
      "enum": ["MedicalCondition", "InfectiousDisease", "MedicalSignOrSymptom"]
    },
    "@context": {
      "type": "string",
      "default": "https://schema.org"
    },
    "name": {
      "type": "string",
      "description": "The name of the condition."
    },
    "description": {
      "type": "string",
      "description": "A description of the condition."
    },
    "url": {
      "type": "string",
      "format": "uri",
      "description": "URL with information about the condition."
    },
    "alternateName": {
      "oneOf": [
        { "type": "string" },
        { "type": "array", "items": { "type": "string" } }
      ],
      "description": "An alias for the condition."
    },
    "code": {
      "$ref": "#/$defs/MedicalCode",
      "description": "A medical code for the condition."
    },
    "associatedAnatomy": {
      "type": "object",
      "description": "The anatomy or anatomical system affected.",
      "properties": {
        "@type": { "type": "string", "enum": ["AnatomicalStructure", "AnatomicalSystem", "SuperficialAnatomy"] },
        "name": { "type": "string" }
      }
    },
    "differentialDiagnosis": {
      "oneOf": [
        { "$ref": "#/$defs/DDxElement" },
        { "type": "array", "items": { "$ref": "#/$defs/DDxElement" } }
      ],
      "description": "One of a set of differential diagnoses for the condition."
    },
    "signOrSymptom": {
      "oneOf": [
        { "$ref": "#/$defs/MedicalSignOrSymptom" },
        { "type": "array", "items": { "$ref": "#/$defs/MedicalSignOrSymptom" } }
      ],
      "description": "A sign or symptom of this condition."
    },
    "possibleTreatment": {
      "oneOf": [
        { "$ref": "#/$defs/MedicalTherapy" },
        { "type": "array", "items": { "$ref": "#/$defs/MedicalTherapy" } }
      ],
      "description": "A possible treatment to address this condition."
    },
    "riskFactor": {
      "oneOf": [
        { "$ref": "#/$defs/MedicalRiskFactor" },
        { "type": "array", "items": { "$ref": "#/$defs/MedicalRiskFactor" } }
      ],
      "description": "A modifiable or non-modifiable factor that increases the risk of a patient contracting this condition."
    },
    "expectedPrognosis": {
      "type": "string",
      "description": "The likely outcome in either the short or long term."
    },
    "naturalProgression": {
      "type": "string",
      "description": "The expected progression of the condition if it is not treated."
    },
    "stage": {
      "type": "object",
      "description": "The stage of the condition.",
      "properties": {
        "@type": { "type": "string", "const": "MedicalConditionStage" },
        "stageAsNumber": { "type": "number" },
        "subStageSuffix": { "type": "string" }
      }
    },
    "status": {
      "type": "string",
      "enum": ["EvidenceNotAssessed", "MedicalEvidenceLevel", "TreatmentActive", "TreatmentComplete", "TreatmentDiscontinued", "TreatmentNotApplicable", "TreatmentPending", "TreatmentStopped"],
      "description": "The status of the condition."
    },
    "epidemiology": {
      "type": "string",
      "description": "The characteristics of associated patients, such as age, gender, race etc."
    },
    "pathophysiology": {
      "type": "string",
      "description": "Changes in the normal mechanical, physical, and biochemical functions."
    },
    "typicalTest": {
      "oneOf": [
        { "$ref": "#/$defs/MedicalTest" },
        { "type": "array", "items": { "$ref": "#/$defs/MedicalTest" } }
      ],
      "description": "A medical test typically performed given this condition."
    },
    "primaryPrevention": {
      "oneOf": [
        { "$ref": "#/$defs/MedicalTherapy" },
        { "type": "array", "items": { "$ref": "#/$defs/MedicalTherapy" } }
      ],
      "description": "A preventative therapy used to prevent an initial occurrence of the medical condition."
    },
    "sameAs": {
      "oneOf": [
        { "type": "string", "format": "uri" },
        { "type": "array", "items": { "type": "string", "format": "uri" } }
      ],
      "description": "URL of a reference Web page that unambiguously indicates the item's identity."
    }
  },
  "$defs": {
    "MedicalCode": {
      "type": "object",
      "description": "A code for a medical entity.",
      "properties": {
        "@type": { "type": "string", "const": "MedicalCode" },
        "codeValue": { "type": "string", "description": "The actual code." },
        "codingSystem": { "type": "string", "description": "The coding system (e.g., ICD-10, SNOMED CT)." }
      }
    },
    "DDxElement": {
      "type": "object",
      "description": "An alternative, closely-related condition to consider as part of differential diagnosis.",
      "properties": {
        "@type": { "type": "string", "const": "DDxElement" },
        "diagnosis": { "$ref": "#", "description": "The condition being considered." },
        "distinguishingSign": { "type": "array", "items": { "$ref": "#/$defs/MedicalSignOrSymptom" } }
      }
    },
    "MedicalSignOrSymptom": {
      "type": "object",
      "description": "Any feature associated or not with a medical condition.",
      "properties": {
        "@type": { "type": "string", "enum": ["MedicalSign", "MedicalSymptom", "MedicalSignOrSymptom"] },
        "name": { "type": "string", "description": "The name of the sign or symptom." },
        "possibleTreatment": { "type": "object", "properties": { "@type": { "type": "string" }, "name": { "type": "string" } } }
      }
    },
    "MedicalTherapy": {
      "type": "object",
      "description": "Any medical intervention designed to prevent, treat, and cure human diseases and medical conditions.",
      "properties": {
        "@type": { "type": "string", "enum": ["MedicalTherapy", "DrugTherapy", "PhysicalTherapy", "RadiationTherapy"] },
        "name": { "type": "string", "description": "The name of the therapy." },
        "description": { "type": "string", "description": "A description of the therapy." }
      }
    },
    "MedicalRiskFactor": {
      "type": "object",
      "description": "A risk factor is anything that increases a person's likelihood of developing or contracting a disease, medical condition, or complication.",
      "properties": {
        "@type": { "type": "string", "const": "MedicalRiskFactor" },
        "name": { "type": "string", "description": "The name of the risk factor." },
        "increasesRiskOf": { "type": "object", "properties": { "@type": { "type": "string" }, "name": { "type": "string" } } }
      }
    },
    "MedicalTest": {
      "type": "object",
      "description": "Any medical test, typically used for diagnosis.",
      "properties": {
        "@type": { "type": "string", "enum": ["MedicalTest", "BloodTest", "ImagingTest", "PathologyTest"] },
        "name": { "type": "string", "description": "The name of the test." },
        "usedToDiagnose": { "type": "object", "properties": { "@type": { "type": "string" }, "name": { "type": "string" } } }
      }
    }
  }
}