Ask Dr. Z

Dr Z, What is the appropriate code for balloon angioplasty of a Fontan fenstration? " we then turned out attention to the Fontan fenestration. We crossed the Fontan fenestration with a coronary wire and glide catheter. We then exchanged the Glide catheter for an Apex RX 4.5 mm x 20 mm balloon. We advanced the balloon over the wire, across the Fontan fenestration and made a total of 3 inflationsfor a total of 6 seconds each. We then repeated the IVC angiogram and this revealed much improved shunting throught the Fontan fenestration and a slight drop in arterial saturations." Cath lab is using 92992, however I don't think that's correct. Is this an unlisted 93799 or would it code to a valvuloplasty code? Thanks!