FHIR HL7 Standards

FHIR (Fast Healthcare Interoperability Resources) is the modern standard for healthcare data exchange. It provides RESTful APIs and structured data formats (JSON, XML) for clinical information: patients, medical observations, medications, encounters, practitioners, organizations. FHIR is replacing HL7 v2 (text-based, error-prone) with web-friendly standards. SMART on FHIR extends FHIR with OAuth 2.0 authentication, enabling third-party apps to request patient data with explicit consent. Think: "Login with your EHR" for healthcare apps.