Ask Dr. Z

"After EPS, 3D mapping, ICE, with ILAM mapping, we noticed crowding inferior to the LIPV and along the ridge. We started ablation along the ridge, then proceeded with roof line, and then proceeded to isolate the posterior wall with a floor line, respecting esophageal temperatures. We then proceeded to confirm that all pulmonary veins were isolated with antral ablation. Isolation of PVs and the posterior wall was confirmed with entrance and exit block pacing."  Then at the end it states 93657 billed twice for roof and floor line ablation for posterior wall isolation in the left atrium for additional treatment of a fib after completion of PVI. Would you code this to (2) 93657s for the roof and floor line ablations?