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Highlights of procedure: "Left femoral artery cannulated. Catheter from left femoral into aortic arch. Aortic arch angiogram. Catheter to left subclavian artery, selective left subclavian angiogram. Total occlusion of left subclavian artery. Angioplasty attempted with several wires and catheters. No access. Total occlusion appeared to be extremely chronic. Under ultrasound guidance, visualized the left brachial artery. Using micropuncture needle, artery was cannulated. Catheter was advanced from the left brachial artery up to the subclavian artery and selective subclavian angiogram. Again used mutiple wires and catheters and were unable to cross the lesion. Procedure was terminated." The codes I came up with are 35475-53 (x2?), 75978(x2?), 75710, and 36216. What else am I missing? Can they be billed x 2 since he tried from the femoral approach and then from the brachial approach?