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Should this be reported with code 96356 or 93653? "Persistent A fib; A Flutter, Typical; Prior PVI; Here for endocardial portion of convergent. High density mapping catheter advanced into left atrium. 3D mapping to assist with catheter manipulation/construct cardiac geometry. Patient had 4 veins with normal anatomy. Esophagus midline, lesions monitored with esophageal probe directly posterior to ablation catheter. A small reconnection near LSPV toward the roof. Some fractionated signals high and posterior near the roof. For atrial fibrillation and/or substrate modification remaining after PVI, the ablation catheter was used to perform a roof line, achieving complete posterior wall isolation. LSPV was reisolated upon completion of the roof line. No evidence of recurrent atrial fib. Isoproterenol infused up to 6 mcg/min. Short nonsustained bursts of typical CTI dependent flutter. CTI ablation line performed at 40W beginning on ventricular aspect, toward IVC. Bidirectional block achieved/confirmed on differential pacing. Double potentials seen >110ms. Rapid burst pacing failed to induce an arrhythmia."