I've used the GC modifier for years, I 've come across a new scenario and need clarification please.
My understanding is that the GC means that the Attending MD was present during the key portion of the service and was immediately available to the Resident. I found something online stating that for Inpatients, the Attending must evaluate the patient within 24 hours of admission and they must EITHER be:

1) Physically present for the key portions OR
2) repeat the key portions of the service independently.

Ok, fine, but if #2 applies, do you still use the GC? Why would you? He wasn't there, isn't teaching, and is writing his own note.