Does anyone know the revenue code for billing the CPT code (90834) on a UB04? Would it happen to be 0780 or 0789?

The facility is Part A Medicare Provider and all their claims were rejected. They are located in FL. Would we have to call Medicare in FL to find out how to reprocess these claims. If anyone has a phone number to share that would be very helpful.

I have looked all over the internet and was not able to find how to bill this correctly.

Thank you.