Condition

Base profile: http://hl7.org/fhir/us/core/StructureDefinition/us-core-condition

Condition resource is used to record detailed information about a condition, problem, diagnosis, or other event, situation, issue, or clinical concept that has risen to a level of concern.

Read more from: https://hl7.org/fhir/R4/condition.html

Here's a concise JSON structure showcasing these components:

Sample Response Object:

{
  "resourceType" : "Condition",
  // from Resource: id, meta, implicitRules, and language
  // from DomainResource: text, contained, extension, and modifierExtension
  "identifier" : [{ Identifier }], // External Ids for this condition
  "clinicalStatus" : { CodeableConcept }, // C? active | recurrence | relapse | inactive | remission | resolved
  "verificationStatus" : { CodeableConcept }, // C? unconfirmed | provisional | differential | confirmed | refuted | entered-in-error
  "category" : [{ CodeableConcept }], // problem-list-item | encounter-diagnosis
  "severity" : { CodeableConcept }, // Subjective severity of condition
  "code" : { CodeableConcept }, // Identification of the condition, problem or diagnosis
  "bodySite" : [{ CodeableConcept }], // Anatomical location, if relevant
  "subject" : { Reference(Patient|Group) }, // R!  Who has the condition?
  "encounter" : { Reference(Encounter) }, // Encounter created as part of
  // onset[x]: Estimated or actual date,  date-time, or age. One of these 5:
  "onsetDateTime" : "<dateTime>",
  "onsetAge" : { Age },
  "onsetPeriod" : { Period },
  "onsetRange" : { Range },
  "onsetString" : "<string>",
  // abatement[x]: When in resolution/remission. One of these 5:
  "abatementDateTime" : "<dateTime>",
  "abatementAge" : { Age },
  "abatementPeriod" : { Period },
  "abatementRange" : { Range },
  "abatementString" : "<string>",
  "recordedDate" : "<dateTime>", // Date record was first recorded
  "recorder" : { Reference(Practitioner|PractitionerRole|Patient|
   RelatedPerson) }, // Who recorded the condition
  "asserter" : { Reference(Practitioner|PractitionerRole|Patient|
   RelatedPerson) }, // Person who asserts this condition
  "stage" : [{ // Stage/grade, usually assessed formally
    "summary" : { CodeableConcept }, // C? Simple summary (disease specific)
    "assessment" : [{ Reference(ClinicalImpression|DiagnosticReport|Observation) }], // C? Formal record of assessment
    "type" : { CodeableConcept } // Kind of staging
  }],
  "evidence" : [{ // Supporting evidence
    "code" : [{ CodeableConcept }], // C? Manifestation/symptom
    "detail" : [{ Reference(Any) }] // C? Supporting information found elsewhere
  }],
  "note" : [{ Annotation }] // Additional information about the Condition
}