FHIR data supports specific clinical use cases that show up in production 2026 deployments. Seven that actually deliver value:
1. Longitudinal patient view. Combining Encounter, Observation, MedicationRequest, Condition across care providers gives clinicians a complete chart. SMART on FHIR apps deliver this in EHR context.
2. Clinical decision support at point of order. CDS Hooks fires alerts and suggestions when clinicians place orders. Best for drug interaction checks, dosing recommendations, coverage requirements.
3. Population health risk stratification. Bulk data $export feeds risk models. Nightly refresh identifies patients needing outreach.
4. Care gap identification. Patients missing recommended screenings (colonoscopy, mammogram) surfaced via Measure reporting.
5. Chronic condition management. CarePlan resource drives multi-touchpoint chronic care workflows.
6. Referral coordination. Task and Communication resources coordinate provider-to-provider referrals.
7. Quality measure attestation. CMS-0057 requires FHIR-based reporting. MeasureReport is the output.
Adoption maturity (mid-2026)
| Use case | Maturity | Vendor coverage |
|---|---|---|
| Longitudinal view | Universal | All EHRs |
| CDS Hooks | Widespread | Epic, Cerner, Aidbox |
| Risk stratification | Widespread | Custom pipelines |
| Care gap ID | Universal | All major payers |
| Chronic care CarePlan | Selective | Growing |
| Referral Task | Widespread | Epic, Cerner |
| Quality attestation | Universal | Payer-driven |
FHIR delivers real clinical value in 2026. Sites that pick 3-5 of the above and execute focused ship faster than sites trying to do all seven simultaneously.
