Ask Dr. Z

Could you please review this example and help with the coding of 92928 and 92921 or just 92928? "A wire was advanced into the distal portion of the left anterior descending. A wire was advanced into the distal portion of a medial branch of the first diagonal branch. The diagonal was dilated at its ostium and mid portion with a 2.0 x 15 mm Mini TREK balloon. The ostium was then dilated using a 2.25 x 8 mm NC TREK. Subsequently, a 2.25 x 8 mm Xience Alpine drug-eluting stent was deployed at the ostium of the diagonal. Post-dilation was performed using a 2.5 x 6 mm NC TREK balloon at the ostium of the diagonal and a 3.25 x 12 mm NC TREK balloon within the left anterior descending. Successful stenting of ostial diagonal lesion using drug-eluting stent. The initial stenosis of 90% was reduced to final residual stenosis of 0% with an excellent angiographic result. Successful balloon angioplasty of lesion in a medial branch of the diagonal branch of the left anterior descending."