FHIR to HL7v2 Conversion library for modernization
summary
Open-source Java library written in Kotlin converts FHIR R4 to HL7 v2 ORU R01 (2.5.1) by evaluating FHIRPath expressions and mapping extracted values into HL7 segments using HAPI objects. Configuration is YAML or passed objects with reusable child schemas, constants, repetition support and conditional extraction. Built into CDC ReportStream for Electronic Laboratory Reporting, it targets functionally lossless round trips from HL7 to FHIR and back, is configuration driven not hardcoded, and is running in production as version 0.1 with broader message support planned.
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chapters (8)
- 0:00Introduction and speakers
- 1:04Report Stream program background
- 4:18Report Stream version one limitations
- 6:08Report Stream version two improvements
- 8:37FHIR to HL7v2 conversion library creation
- 10:42Library features and flexibility
- 14:34HL7 FHIR mapping standards
- 15:59Q&A session
