Summary & Overview
CPT 50544: Pyeloplasty for Ureteropelvic Junction Obstruction
CPT code 50544 represents pyeloplasty, a urologic reconstructive surgery to correct obstruction at the ureteropelvic junction and re-establish urine flow from the kidney to the bladder. The code is clinically significant because untreated ureteropelvic junction obstruction can lead to progressive hydronephrosis, renal impairment, pain, and recurrent infections, making definitive surgical correction an important service across health systems.
Key payers covered in this national overview include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the clinical context and service settings for pyeloplasty, plus what to expect in payer coverage discussions. The publication summarizes typical sites of service (hospital inpatient, outpatient surgical departments, and ambulatory surgery centers), common procedural considerations, and the types of performance measures and coding elements that affect claims processing. It also highlights where additional data is needed for benchmarking and policy analysis.
This summary is intended for clinicians, coding professionals, and policy analysts seeking a clear national-level reference on CPT code 50544, its clinical purpose, and the payer landscape relevant to coverage and claims workflows.
Billing Code Overview
CPT code 50544 describes pyeloplasty, a surgical procedure to correct obstruction at the ureteropelvic junction between the kidney and the ureter. The procedure restores normal urine flow from the kidney to the bladder by removing or bypassing a blockage and reconstructing the ureteropelvic junction.
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Service type: Surgical procedure (urologic reconstructive surgery)
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Typical site of service: Hospital inpatient or outpatient surgical department; may also be performed in ambulatory surgery centers depending on patient condition and surgical approach.
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Clinical & Coding Specifications
Clinical Context
A typical patient is a 28–45-year-old adult presenting with flank pain, recurrent urinary tract infections, or impaired renal drainage identified on imaging. Workup includes renal ultrasound, non-contrast CT or CT urogram, and diuretic renal scintigraphy (MAG3) demonstrating obstruction at the ureteropelvic junction (UPJ) with delayed drainage and preserved or reduced differential renal function. A urologist evaluates operative candidacy, discusses open versus minimally invasive pyeloplasty approaches, obtains informed consent, and schedules surgery in an inpatient or ambulatory surgical center depending on comorbidity and expected complexity. Intraoperative steps include exposure of the UPJ, excision of the stenotic segment, spatulated ureteral reconstruction with reanastomosis to the renal pelvis, and placement of a ureteral stent or nephrostomy as needed. Postoperative care includes pain control, monitoring for urine leak or infection, imaging or renography in follow-up to confirm improved drainage, and scheduled stent removal if placed.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | Procedure with no report required by payer | Rarely used; use only if payer-specific reporting requirement code applies |
11 |