Ask Dr. Z

"Using US, I was able to visualize the left upper extremity AVG. Exchange was then made for wire and micropuncture sheath 035 wire was advanced into the central venous system. Exchange was then made for 7 French sheath. I did the same maneuver with cannulization into the arterial system. Exchange was made for stiff Glidewire Bernstein catheter, which was navigated into the brachiocephalic trunk. Angiogram was then completed, which demonstrated stenosis within brachial artery. I then exchanged this for a 6 mm balloon angioplasty of the brachial artery was then completed which promoted excellent inflow. Given the findings change was then made for a Trerotola which was utilized to clean the arterial limb and subsequently the venous limb. Stiff Guidewire was then navigated into the venous limb where balloon angioplasty of the AV graft was then completed along the venous outflow system. Complete angiogram showed excellent flow." What all can I code here? Brachial angioplasty also?