Does anyone know the secret to getting tertiary claims submitted to Medicare (especially Novitas) successfully? We cannot file them electronically through our clearinghouse. Novitas first told us they would only accept if we did send by paper but put "tertiary claim" in box 19. That worked for a few and now they say they won't accept that but only will electronically. They cannot give us specific direction on where to find the requirements for that to be successful. We don't have access to the Novisphere that they have now so not sure if we can do so through this software or not. We pretty much have this problem across the board but just looking for if anyone has success or tips on what is working to get these claims processed.