S Sherri Hillard Guest Messages 6 Location Pipersville, PA Best answers 0 Apr 4, 2012 #1 Physician is ready to begin EP Study with Ablation for a patient with A-Fib. After monitoring patient's ECG for 20 mins with infusion of Isoproternol, planned study was aborted. How should this be coded?? Can I bill an E/M level??