I'm looking for an HL7 V3 Clinical Document Architecture API that's open source. Preferably something exactly like nHapi (a structured object model for building specific message types), except that it has message classes for creating V3 messages (not just v2.x messages like nHapi does).
I've looked at MirthConnect, but that's primarily Java and Javascript based... I haven't seen any really strong candidates on Google either, so I'm hoping someone here might know of one.
I suggest that you can try MARC_HI Everest on this site.
You may also find these two document are useful:
At last I want to say you do not have to waste time on RIMBAA, it is not a very active community.
I believe this question was asked previously as well, but the requirement was for an open source Java HL7 v3 API, just like HAPI. See this reference.
The solutions that are currently offered are HL7 proprietary focusing towards the enhancement and development of the RIM - Reference Information Model.It is a work group committee by the name of RIMBAA - RIM Based Application Architecture. See this page which provides a nice discussion about RIMBAA. Overall, open source APIs for v3 in both spheres -java and .net are not currently available.
I believe HAPI and nHAPI teams might be able to come up with something in the near future, or maybe they have already starting to work on it. You can write to HAPI team for more information.
Good Luck!
I strongly recommend the Everest API.
I just found this... It's GPL v2
来源：https://stackoverflow.com/questions/19123723/open-source-hl7-v3-cda-net-api