Ask Dr. Z

"A patient with radial artery thrombosis underwent thrombectomy by surgical cutdown (34111). After removal of a significant amount of acute thrombus both proximally and distally, there was good distal radial artery backbleeding but no good inflow. Thrombectomy of the inflow was attempted by filling the Fogarty catheter with saline (initially it had been filled with air), but this did not result in any significant improvement. The surgeon then inserted an angiocatheter into the radial artery and performed an angiogram, which revealed significant residual chronic thrombus in the proximal radial artery. Additional thrombectomy was then performed with good result." Would it be appropriate to report code 75710 for the angiogram performed in this case? If so, would we also report code 36140 for the catheterization?