Ask Dr. Z

Dr. Z,  93621 is the bane of my existence! Below I have two separate excerpts which I would appreciate if you could tell me equal 93621. I can't recall any situation when I have specifically seen "LEFT atrial pacing/recording". (Well, maybe one.) Additionally, is there a specific phrase or wording I could suggest to the physician that would make it easier for everyone? Or, wording that I can specifically look for? Is coronary sinus cannulation sufficient? Because he almost always says that. He is very good about documenting comprehensive EP study. 1) Quadripolar catheter placed in high right atrium. Pacing septal and lateral to the isthmus. Rapid pacing in the atrium showed Wenckebach cycle.  Coronary sinus was also cannulated and mapped. 2) Quadripolar mapping and cryoablation catheter was placed in the right atrium and the right ventricle, and the coronary sinus.  Comprehensive EP study performed.  Patient had pacing, both septal and lateral.  Rapid atrial pacing.  Pacing in the RV. I have referred to your Q&A's from 7/30/10 and 12/28/09 as well as scrutinizing the CPT description for 93621, but I still wrestle with this. YOUR HELP IS GREATLY APPRECIATED.