Ask Dr. Z

I would appreciate some guidance on this scenario. I have searched the database relentlessly and cannot locate a similar case. Right CFA is accessed. catheter is advanced to the origin of the innominate artery. A stent only was initially attempted but due to the angulation and heavy calcification at the origin of the innominate, a pre-dilating balloon was utilized but the stent still could not be deployed. Therefore, angioplasty catheter was re-inserted into the right subclavian artery (36216) and a smaller, low profile stent was finally deployed at the origin of the innominate artery (37205). Subsequently, the angioplasty was performed as an assistive effort to deploy the stent due to angulation and heavy calcification. Then, the ipsilateral right EIA 80-90% lesion at its origin was angioplastied and stented (37206). The documentation for the angioplasties lack the requirement to code as a 'therapeutic' procedure in my opinion. My codes are: 37205, 37206, 36216. I did not code 36160 for the ipsilateral stenting of the EIA because I am thinking that it bundles into the 36216 (subclavian). Is this correct? Or, would it be separately coded since one selective catheter placement is above the diaphragm and the other is below it? Thank you Dr. Z as always!