Radiology Service — Event Schemas

Status: populated Owner: TBD Last updated: 2026-04-18 Companion: Service Template · 03 platform-services · 02 DDD

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1. Transport

JetStream stream: DIAG_RADIOLOGY — subject wildcard diag.radiology.>. CloudEvents envelope via @ghasi/nats-client.

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2. Produced Events

diag.radiology.study.available

Field	Value
CloudEvents type	ghasi.radiology.study.available
Source	ghasi/radiology
Version	1
Retention	30 days

{
  "type": "ghasi.radiology.study.available",
  "source": "ghasi/radiology",
  "data": {
    "studyId": "STU_01J...",
    "pacsStudyUid": "1.2.840.10008.5.1.4.1.1.2",
    "patientId": "PAT_01J...",
    "encounterId": "ENC_01J...",
    "orderId": "SRQ_01J...",
    "modality": "CT",
    "startedAt": "2026-04-18T10:00:00Z",
    "tenantId": "tenant_01J..."
  }
}

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diag.radiology.report.received

Field	Value
CloudEvents type	ghasi.radiology.report.received
Version	1
Retention	30 days

{
  "data": {
    "studyId": "STU_01J...",
    "reportId": "RPT_01J...",
    "status": "preliminary",
    "authorId": "PRV_01J...",
    "patientId": "PAT_01J...",
    "tenantId": "tenant_01J..."
  }
}

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diag.radiology.report.signed

Field	Value
CloudEvents type	ghasi.radiology.report.signed
Version	1
Retention	90 days
Consumers	patient-chart-service, patient-portal-service, audit-service

{
  "data": {
    "reportId": "RPT_01J...",
    "studyId": "STU_01J...",
    "patientId": "PAT_01J...",
    "encounterId": "ENC_01J...",
    "authorId": "PRV_01J...",
    "signedAt": "2026-04-18T11:00:00Z",
    "fhirDiagnosticReportId": "DR_01J...",
    "tenantId": "tenant_01J..."
  }
}

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diag.radiology.report.amended

Field	Value
CloudEvents type	ghasi.radiology.report.amended
Version	1
Retention	90 days

{
  "data": {
    "reportId": "RPT_new...",
    "priorReportId": "RPT_old...",
    "studyId": "STU_01J...",
    "patientId": "PAT_01J...",
    "amendmentReason": "Additional finding noted",
    "tenantId": "tenant_01J..."
  }
}

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diag.radiology.finding.critical

Field	Value
CloudEvents type	ghasi.radiology.finding.critical
Version	1
Retention	90 days
Consumers	communication-service

{
  "data": {
    "studyId": "STU_01J...",
    "reportId": "RPT_01J...",
    "patientId": "PAT_01J...",
    "modality": "CT",
    "findingSummary": "Acute intracranial hemorrhage",
    "responsibleProviderId": "PRV_01J...",
    "tenantId": "tenant_01J..."
  }
}

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3. Consumed Events

Subject	CloudEvents type	Producer	Action
clinical.orders.placed	ghasi.orders.placed	orders-service	Register imaging study from ServiceRequest

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4. Legacy Subject Migration

Prior subjects ghasi.radiology-pacs.study.available, ghasi.radiology-pacs.report.received, ghasi.radiology-pacs.report.amended, ghasi.radiology-pacs.finding.critical are deprecated and replaced by diag.radiology.* subjects above. Dual-publish during migration window.