Interoperability of FHIR and Major Standards: Solving Healthcare Data Exchange Challenges

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This article focuses on the critical theme of healthcare information system interoperability. FHIR is one of the most prominent data exchange standards in modern healthcare IT, and this piece comprehensively introduces its use cases. Specifically, it details integration methods with established standards like HL7 (Health Level Seven) and major platforms such as IRIS (InterSystems IRIS). Furthermore, adopting FHIR is not merely a technical update but involves tackling large-scale and complex challenges, such as migrating from electronic health records to modern data structures. The featured examples include concrete implementations using HL7 standards and IRIS, providing guidelines for healthcare institutions aiming to move away from legacy systems and build more flexible, contemporary data exchange foundations (FHIR). This knowledge is extremely relevant for the advancement of medical informatization in Japan.