Our practice employees and ENT/Facial Plastic and a Dermatologist that work in side by side offices. Patients often see the Dermatologist for one thing and than hop next door to see the ENT out of convience i guess resulting in 2 E/M codes being billed on the same day. We use the same billing system for both doctors and we bill under the same Tax Id. This causes the claims to be held because of two E/M services. I get a rule fired stateing we could use a 76 or 77 modifier but i really don't feel those apply and i was told by the academy of facial plastics that should do away with one of the E/M. Just wanting to know other opinions.