Stent Placement

My surgeon preformed a fistulogram with interpretations, a venous outflow angioplasty with completion fistulogram and once the fistulogram has not responded to angioplasty, he put in a self expanding stent. I think I have the procedure codes right, but I am second guessing myself on the stent placement. Does 36147, 75978-26, 36147-51,59 look correct?

re: Stent Placement

http://blue.regence.com/trgmedpol/surgery/sur109.html