I looked at the BizTalk HIPAA 5010 Version Support page and they have the 278 schema listed, but it is only the 005010X217 version. It also doesn't look like WPC has a schema for 278 005010X216 either. The 005010X216 definition is different enough that using the 278 schema without modifications may not be possible.
Does anyone know if BizTalk 2010 even truly supports 005010X216 and, if so, is there a schema available for it?
If not, does anyone know if there is a 3rd party component that supports 005010X216? I did a search of the usual open source repositories, but came up with nothing.