FHIR is a standard for health care data exchange, published by HL7®.
Level 1 Basic framework on which the specification is built
Level 2 Supporting implementation and binding to external specifications
Level 3 Linking to real world concepts in the healthcare system
Level 4 Record-keeping and Data Exchange for the healthcare process
Level 5 Providing the ability to reason about the healthcare process
Specifications based on the FHIR standard
Enabling health interoperability through FHIR
Note that translations are not always up to date
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