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HealthTAG Hospital Module

HL7 FHIR and HAPI Server

FHIR (Fast Healthcare Interoperability Resources) is an HL7 standard for exchanging electronic health records. It defines data structures called resources and an API for working with them. HealthTAG uses FHIR to give hospital systems a common data format.

FHIR concepts used here

Section titled “FHIR concepts used here”
  • Resources such as Patient, Observation, and Encounter hold clinical and administrative data.
  • The REST API uses HTTP methods such as GET, POST, PUT, and DELETE.
  • The current HealthTAG configuration selects FHIR R4B.

HAPI FHIR Server

Section titled “HAPI FHIR Server”

The Data Source Node uses HAPI FHIR, an open-source Java implementation of FHIR. Its JPA server parses, validates, and stores FHIR resources in PostgreSQL. It also includes a test interface, which should remain on a restricted network because it permits data changes.

See the HAPI FHIR documentation for server configuration and version-specific behavior.