Bahmni runs on top of OpenMRS (for EMR features) and OpenMRS already has HL-7 support.
Besides that, for Hub & Spoke feature we are working on using FHIR standard to communicate data across the Hub and its Spokes. You can see details here: Trello
The hope for us is to re-use the work we did with Bahmni and Shared Health Record with regards to FHIR integration. See this link (slide 15 onwards): Bahmni | PPT
I read that Bahmni will support FHIR in 0.88
Bahmni won’t have FHIR support yet in v0.88. It will in some time once Hub & Spoke feature is released.
as @gsluthra said, we will develop the FHIR module for Bahmni which will export the entities (location, practitioner, patient etc), metadata (terminology, and other configs), and data (encounter - as a form on FHIR bundle). We had a look at the OpenMRS FHIR module, and felt we can use it provided its made more generic - e.g. allow resource providers to be overridden. Most importantly, we feel we need to agree upon the encounter exchange bundle specification between Bahmni and OpenMRS FHIR devs.