Summary & Overview
CPT 50693: Ureteral Stent Placement via Nephrostomy Tract
CPT code 50693 covers image-guided placement of a ureteral stent through a pre-existing nephrostomy tract, often including contrast injection for nephrostogram and ureterogram and radiological supervision and interpretation. This procedure is a key minimally invasive intervention to relieve or prevent ureteral obstruction, maintain renal drainage, and manage strictures. Nationally, CPT code 50693 matters because it defines billing and clinical documentation for interventional radiology and urology teams performing stent placement via existing nephrostomy access.
Key payers in scope include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of the clinical context for the service, the typical sites of care (hospital outpatient departments and ambulatory surgical centers), common billing modifiers (listed separately), and what to expect in terms of coding classification. The publication provides benchmarks and policy-relevant guidance on coding clarity, documentation elements tied to imaging guidance and contrast use, and common payer considerations for coverage and claims processing. This content is intended to inform clinicians, coding staff, and revenue cycle professionals about proper identification and reporting of CPT code 50693 in national practice settings.
Billing Code Overview
CPT code 50693 describes placement of a ureteral stent through a pre–existing nephrostomy tract using ultrasound and/or fluoroscopy guidance. The procedure may include injection of contrast material to perform a nephrostogram and/or ureterogram and includes radiological supervision and interpretation.
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Service type: Image-guided urologic intervention (stent placement via existing nephrostomy tract)
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Typical site of service: Hospital outpatient department or ambulatory surgical center where interventional radiology or urology procedures using fluoroscopy/ultrasound are performed
Clinical & Coding Specifications
Clinical Context
A 62-year-old male with a history of left-sided ureteral stricture following prior ureteroscopy presents with progressive hydronephrosis and flank pain. The patient previously has an indwelling left percutaneous nephrostomy placed for urinary drainage. Urine output via the nephrostomy remains adequate but antegrade passage of urine into the bladder is limited by the known ureteral narrowing. The interventional radiology team schedules an antegrade ureteral stent placement through the pre–existing nephrostomy tract using real-time ultrasound and fluoroscopic guidance. The clinical workflow includes pre-procedure informed consent and review of renal function and coagulation status, transport to the procedure suite, conscious sedation or monitored anesthesia care per institutional protocol, sterile preparation of the nephrostomy site, injection of contrast for nephrostogram/ureterogram to define the stricture, advancement of guidewires and catheters antegrade through the ureter, placement of an internal ureteral stent across the stricture, confirmation of position with fluoroscopy, and post-procedure imaging and monitoring before discharge or transfer back to the ward. Radiological supervision and interpretation are provided as part of the procedure and documented in the radiology report.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | When billing only the physician component of radiological supervision and interpretation separate from technical facility resources |