Ask Dr. Z

Could you please advise on changing overnight thrombolytic catheters? Pt had popliteal vein accessed for thrombolytic yesterday 37201,36140,75986-26 for thrombus in the femoral vein, IVC and iliac veins. The next day dr removes EKOS cath for new brite tip sheath and leg and venal caval gram were performed. 75898-26, do I charge for the cath change also? 35900? PTA was perfromed of the external, common iliac, and common femoral. So that would be just one venous angioplasty of 35476-75978-26? Would the defining difference be whether they kept the thrombolytic going to be able to charge for cath change? Thank you so much for your help!