FHIR Reference Integrity Checker
Resolves every reference in a FHIR Bundle and reports dangling references, orphans and duplicate ids.
Clinical safety notice: Zero real patient data (PHI/PII) may be entered into this browser utility. Use synthetic test payloads only. Local-first deterministic processing; nothing leaves your browser.
How it works
Standard: HL7 FHIR R4 references (Reference.reference)
Formula: A reference resolves if it equals an entry fullUrl or a ResourceType/id in the Bundle
Checks: Dangling references; resources nothing references (orphans); duplicate ResourceType/id
Calculated locally in browser memory; nothing leaves your browser.
Deterministic local-first client-side execution. Provided as-is without warranty.