Summary & Overview
CPT 50575: Antegrade Endopyelotomy for UPJ Stricture
CPT code 50575 represents an antegrade endopyelotomy — an endourologic surgical procedure in which a scope is introduced through a percutaneous incision into the kidney to incise a ureteropelvic junction (UPJ) stricture. This procedure is clinically important for relieving obstructive physiology in the upper urinary tract and can affect surgical utilization, facility resource use, and specialty reimbursement patterns nationally. It is commonly performed in hospital operating rooms or ambulatory surgery centers with percutaneous renal access.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of the clinical context for using CPT code 50575, how the procedure is classified for billing, and what typical sites of service are. The publication outlines benchmark considerations, common modifier usage (listed separately), and relevant policy and coverage implications that influence claim adjudication and facility planning.
This summary provides a concise reference for coding and billing teams, revenue cycle professionals, and policy analysts seeking to understand the clinical intent of CPT code 50575, its place in surgical service lines, and the payer landscape affecting reimbursement and utilization nationally. Data not available in the input are noted where applicable.
Billing Code Overview
CPT code 50575 describes an antegrade endopyelotomy performed by a urologist. The procedure involves passing a scope through an incision in the skin into the kidney and incising the stricture at the ureteropelvic junction (UPJ). This is a surgical intervention to relieve obstruction at the UPJ.
Service type: Surgical — Endourologic procedure
Typical site of service: Hospital operating room or ambulatory surgery center (percutaneous/operative suite access to the kidney)
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A 48-year-old male presents with flank pain and recurrent urinary tract infections. Imaging (CT urogram and renal ultrasound) demonstrates a symptomatic ureteropelvic junction (UPJ) stricture with hydronephrosis of the affected kidney. Conservative measures and endoscopic balloon dilation have failed. The urologist schedules an antegrade endopyelotomy. In the operating room under general anesthesia, the patient is positioned for percutaneous renal access. A small incision is made in the flank and a nephrostomy tract is dilated to introduce a rigid or flexible nephroscope into the renal pelvis. The surgeon identifies the UPJ stricture and performs an endopyelotomy incision across the narrowed segment, often using a cold knife, electrocautery, or laser. A ureteral stent is typically placed to ensure drainage and support healing. Postoperative care includes monitoring for bleeding, infection, stent-related symptoms, and follow-up imaging (renal ultrasound or diuretic renogram) to confirm resolution of obstruction.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | Service not covered by payer policy | Rarely used; apply only when payer-specific noncoverage reporting requires a special code per payer rules |
11 |