FHIR testing confirms more than whether JSON is valid. Prior authorization implementations must also apply the right terminology and business rules, maintain security and identifiers, survive external failures, and support users through the complete case lifecycle.
Create a layered test strategy
Start with unit tests for mappings and rules, then validate profiles, terminology, and invariants. Contract tests should confirm expectations between systems before end-to-end workflow tests are attempted.
Maintain synthetic test patients and deterministic fixtures that cover common and difficult scenarios without exposing production data.
- FHIR syntax and profile conformance.
- Terminology membership and code translation.
- Business-rule and policy-version behavior.
- Authorization and privacy controls.
- Performance, resilience, and recovery.
Test state and identity
Verify that resubmissions, updates, cancellations, and asynchronous responses reconcile to the correct case. Include duplicate messages, out-of-order events, and retried requests.
Test identifiers across patient, coverage, provider, request, and payer systems. A valid payload connected to the wrong entity is a serious failure.
Run workflow acceptance tests
Ask operational users to complete realistic cases, resolve missing data, interpret payer responses, and recover from outages. Confirm that audit history and work queues remain understandable.
Use production monitoring and a rollback plan because external payer behavior and live data variation cannot be fully reproduced before launch.