Use HCPCS Level II modifier w/ CPT code... PTCA of left anterior descending coronary artery. A 6-French JL4 guiding catheter was used, and a 014 extra-support wire was passed through the LAD obstruction and "entered" the distal vessel. This was first dilated with a 3-mm 20 CrossSail balloon, subsequently with a 3.5 10 cutting balloon (arteriectasis). With the cutting balloon, there were four inflations at 6-7 atmospheres and up to 1-minute inflation times. The balloon was withdrawn, and angiography showed the vessel to be wide open with mild irregularities and less than 15% narrowing remaining. There was no distal embolism. There was no dissection noted. There was normal TIMI flow. The case was then terminated at this point and balloons, catheters, and wires were removed, and the patient was sent to her room in good condition.