HCPCS 74476 — Introduction of intracatheter or catheter into renal pelvis for drainage and/or injection, percutaneous, with fluoroscopic monit (7 hospitals, — samples)
HCPCS 74481 — Introduction of ureteral catheter or stent into ureter through renal pelvis for drainage and/or injection, percutaneous, with fl (7 hospitals, — samples)