Table 10.

Approaches used to map or migrate data from other Health Level 7 (HL7)-based legacy systems to the Fast Healthcare Interoperability Resources (FHIR)-based system.

Techniques or methods	References
Map HL7 version 2 to FHIR	No relevant articles
Map HL7 CDAa documents, C-CDAb, or HL7 version 3 to FHIR	[5,8,12,16,19,60,79]
ODMc to FHIR	[21,41,64]
Map FHIR to other	[27]
i2b2d to FHIR format	[31,71]
Health record data model to FHIR	[38,63,68,75,81,84]
Map other standards to FHIR	[13,17,24,33,64,71]

^aCDA: clinical document architecture.

^bC-CDA: consolidated clinical document architecture.

^bODM: operational data model.

^ci2b2: Informatics for Integrating Biology and the Bedside.