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How would you code the following?

"In prone position under sedation, right back and flank were prepped and draped. External portion of indwelling nephrostomy tube was transected. Limited nephrostogram shows good position within right kidney lower pole calyx, filling of collecting sytem, and right ureter, but obstruction of distal ureter (50394, 74425). Indwelling nephrostomy tube was replaced over a Glidewire, followed by placement of introducer sheath with tip into lower pole infundibulum. Guidewire and catheter technique used for placement of Kumpe glide catheter and glide wire into distal ureter. Contrast injection with 99% stricture at distal right ureter, was traversed with glide wire, and allowed advancement of glide cath into bladder. Guidewire was advanced into bladder, and catheter was exchanged for a 3 mm x 40 mm angioplasty balloon. Inflation to 10 ATM with parallel balloon walls, sustained approx 2 minutes (53899, 74485). Double-J ureteral stent was advanced over guidewire, and a distal pigtail was formed in bladder and proximal in renal pelvis (50393, 74480). An 8 French nephrostomy tube was replaced into right renal pelvis (50398-RT, 75984, C1729)."