This describes the resources that make up Cerner’s implementation of the HL7® FHIR® standard. If you have any problems or requests, please post to our developer group.
Cerner’s implementation currently supports both the R4 First Normative Content (4.0.1) version and DSTU2 Final (1.0.2) version of the HL7® FHIR® standard. Cerner’s implementation of the R4 version is ongoing and new resources and actions will be added over time.
Determining Which Version You Should Use
Determining which version you should use will depend upon your use case and, in general, if the R4 implementation meets all of your requirements, you should target your development against the R4 version. To determine if the R4 version meets your requirements, you need to consider supported resources and actions, patient access, and technical requirements. In general, there are more capabilities such as create and modify in R4 that will not be patched back to DSTU2.
Cerner’s R4 implementation currently does not support patient access, nor is it certified for HIT 2015 Edition Cures Act (formerly Meaningful Use 3). Cerner will be adding support for patient access and enhancing R4 APIs over the coming months in time for clients to certify. Cerner’s R4 implementation will achieve a like-for-like implementation of all resources and actions currently supported by DSTU2. Existing DSTU2 apps will eventually need to be migrated to our R4 implementation. For this reason, we highly encourage development against R4 whenever possible.
Supported Resources Between Versions
To determine what resources and actions are supported by our DSTU2 and R4 implementations you can browse our documentation for both DSTU2 and R4 and compare between each version. You can also compare the Conformance (DSTU2) and CapabilityStatement (R4) for the list of supported resources and actions.