HL7 and FHIR Integration: A Primer for Healthcare Software Teams

Resources (Patient, Observation, Encounter) with references between them, SMART on FHIR for auth into EHR contexts, and US Core profiles as the interoperability floor — the standard is readable; the implementations vary.

PHI flowing through interfaces inherits HIPAA obligations — BAAs, audit trails, and minimum-necessary design apply to the pipes, not just the apps.

Skipping the discipline this article describes until an incident, audit, or stalled project forces it — every practice above is cheaper adopted early than retrofitted under pressure.