HL7 and FHIR: Interoperability Standards Every EHR Must Support
HL7 vs FHIR: Interoperability Standards Every EHR Must Support -
Summary
In the US healthcare system, data fragmentation due to silos is causing incomplete patient records. Regulatory bodies have mandated interoperability standards like HL7 and FHIR. These two standards are crucial for supporting different aspects of EHR functionality—legacy transactional processing and modern real-time access—making a hybrid approach essential.
Key Players
Details
Although many hospitals and physicians in the US have adopted Electronic Health Records (EHRs), data fragmentation across departments and systems remains a major issue, leading to incomplete patient records and delayed care. Consequently, regulatory bodies like CMS mandate interoperability using HL7 and FHIR. The article emphasizes that interoperability is critical because without it, advanced features are useless if data cannot be exchanged, forcing manual entry and increasing clinician burnout. HL7 remains the foundational standard, widely adopted by legacy EHRs for high-volume transactional workflows such as admissions, discharges, and lab orders. These processes are deeply tied to existing infrastructure. Conversely, FHIR revolutionized real-time data access using RESTful APIs. It enables seamless connectivity with modern components like mobile apps and patient portals, significantly boosting scalability and flexibility. Ultimately, the text argues that HL7 and FHIR are not competitive but complementary. A hybrid approach is necessary: HL7 maintains the stability of legacy transactions, while FHIR provides the modern data access and extensibility required for a scalable EHR ecosystem.
Technology Note
FHIR（Fast Healthcare Interoperability Resources）は医療データ交換の国際標準。このエントリの関連技術: HL7
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