if physician did a Endoscopic mucosal resection, submucosal injection, for a large Sessile Polyp and was removed by a combination of hot and cold snare followed by APC application@edges, would we only use the combination cpt codes of 45390(EMR),45388(APC), or 45385(snare),45381(APC)45388(injection) or just the 45385 and 45381. I want to make sure I am coding these correct as I know I cannot bill the EMR and the snare together for same polyp, but not sure on the apc? any help with this would be great.