Ask Dr. Z

The patient has extensive RLE DVT and failed anticoagulation. The doctor placed a vena cava filter through an internal jugular vein access. He then accesses the popliteal vein, injects contrast, and does a RLE venogram. He places the catheter to the external iliac vein and injects contrast again, then angioplasties the femoral vein. He places an EKOS thrombolysis catheter from the external iliac vein to the popliteal vein. I know that the filter placement usually bundles catheter placements and imaging; however, since a separate access was used, can I code for the catheter placement and venography of the lower extremity? I'm thinking code 37191 for the filter placement, code 37212 for the thromboysis catheter initiation, codes 35476 and 75978-26 for the venoplasty of the femoral vein, and possibly code 75820-2659 for the venography of the RLE.