Summary & Overview

CPT 50970: Ureteroscopic Examination and Stone Removal

CPT code 50970 denotes ureteroscopic examination with incision of the ureter and passage of an endoscope to visualize the kidney, renal pelvis, and ureters, commonly performed to remove ureteral stones. This procedure is a key element of urologic stone management and has national relevance due to the high prevalence of nephrolithiasis and the need for standardized coding across surgical and ambulatory settings. Proper use of CPT code 50970 ensures clear clinical documentation and accurate claims submission for endoscopic ureteral access and stone removal.

Major payers addressed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication outlines how payers typically process and reimburse endoscopic urologic procedures and highlights payer coverage considerations relevant to clinicians, billing staff, and policy analysts.

Readers will find a concise clinical context for CPT code 50970, expected site-of-service settings, common modifiers used in billing practice (listed separately), and a national perspective on coding consistency and documentation needs. The report presents benchmarks where available, notes policy updates affecting endoscopic stone procedures, and provides guidance on common billing pitfalls and documentation elements tied to this procedure. Data not available in the input will be identified as such in relevant sections.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicare50970CPTurologyureteroscopystone-removalendoscopyoperating-roomambulatory-surgery

Billing Code Overview

CPT code 50970 describes an endoscopic examination of the kidney, renal pelvis, and ureters performed by incising the ureter and passing an endoscope to visualize the urinary tract. The procedure includes techniques to enhance visualization and is performed for removal of ureteral stones.

Service type: Endoscopic urologic procedure for ureteral stone management
Typical site of service: Operating room or ambulatory surgical center (procedures involving endoscopic ureteral access and stone removal are typically performed in a procedural suite equipped for urologic endoscopy)

Data not available in the input.

Clinical & Coding Specifications

Clinical Context

A 48-year-old patient presents to the urology clinic with acute-onset right flank pain, hematuria, and nausea. Non-contrast CT confirms a 7 mm obstructing ureteral stone in the proximal right ureter with associated hydronephrosis and renal colic. Conservative measures, including analgesia and medical expulsive therapy, fail and the patient is scheduled for ureteroscopy with stone removal.

Preoperative evaluation includes history and physical, review of imaging, urine culture, and informed consent. The procedure is performed in an outpatient ambulatory surgery center or hospital operating room under general or regional anesthesia. The urologist cystoscopically accesses the ureter, performs a ureterotomy or passes a ureteroscope through the ureteral orifice, inspects the ureter, renal pelvis, and calyces, uses visualization techniques such as irrigation, fluoroscopic guidance, stone fragmentation devices (laser lithotripsy), and basket retrieval for extraction of stone fragments. A ureteral stent may be placed at the conclusion for ureteral drainage. Postoperative workflow includes recovery in PACU, analgesia, discharge instructions, and arrangements for stent removal if placed.

Coding Specifications

Modifier	Description	When to Use
`26`	Professional component	Use when billing only the physician’s professional component separate from technical services for imaging or other components when applicable.
`50`	Bilateral procedure	Use when the procedure is performed on both ureters during the same operative session.
`51`	Multiple procedures	Use when `50970` is billed alongside other distinct surgical procedures at the same session (per payer policy).
`52`	Reduced services	Use when the procedure is partially reduced or not completed as originally planned.
`53`	Discontinued procedure	Use when the procedure is terminated due to extenuating circumstances after anesthesia has begun.
`62`	Two surgeons	Use when two surgeons of different specialties are required and each performs distinct portions of the procedure.
`66`	Surgical team	Use when a surgical team is required and team billing is allowed by the payer.
`78`	Unplanned return to OR for related procedure during postoperative period	Use when the patient returns to the operating room for a related procedure during the global period.
`80`	Assistant surgeon	Use when an assistant surgeon participates and assistant surgeon billing is permitted.
`81`	Minimum assistant surgeon	Use when a minimum assistant surgeon is required per payer rules.
`52`	Reduced services	Use when fewer services are performed than described by the code (duplicate entry for emphasis if applicable by payer rules).
`73`	Discontinued outpatient procedure prior to anesthesia	Use when the outpatient procedure is discontinued before administration of anesthesia.
`76`	Repeat procedure by same physician	Use when the same physician repeats the procedure later the same day.
`78`	Return to OR by same physician	Use when the same physician returns to the OR for a related procedure during the global period.

Taxonomy Code	Specialty	Notes
2080S0300X	Urology	Board-certified urologists commonly perform ureteroscopy and stone extraction.
207RH0000X	General Surgery	General surgeons with endourology experience may perform ureteral endoscopic procedures in some settings.
2080P0207X	Pediatric Urology	Pediatric urologists perform ureteroscopy for ureteral stones in pediatric patients when indicated.
207L00000X	Colon & Rectal Surgery	(Less common) surgeons with endourologic skills in some institutions may assist or perform parts of care.
2086S0122X	Obstetrics & Gynecology	(Occasional) gynecologic surgeons with advanced endoscopic skills may be involved in multidisciplinary care scenarios.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`N20.1`	Calculus of ureter	Primary indication for ureteroscopy and stone removal when ureteral stone causes obstruction or persistent symptoms.
`N20.0`	Calculus of kidney	Renal calculi may migrate into the ureter and necessitate ureteroscopic management.
`N13.2`	Hydronephrosis with ureteral stricture or obstruction	Hydronephrosis from ureteral obstruction by stone indicates need for intervention.
`N20.9`	Urinary calculus, unspecified	Used when stone location is not specified but stone disease is present and ureteroscopic management is performed.
`N28.89`	Other specified disorders of kidney and ureter	Used for related structural or functional abnormalities that may complicate ureteroscopic procedures.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`52351`	Cystoureteroscopy, with ureteroscopy and/or pyeloscopy; diagnostic, with or without collection of specimens	Performed when diagnostic evaluation of the ureter and renal pelvis is required prior to or during stone management; may be billed for diagnostic-only ureteroscopic evaluation.
`52352`	Cystoureteroscopy, with ureteroscopy and/or pyeloscopy; with treatment of ureteral stone by ureteroscopy, including lithotripsy and removal	Often billed for ureteroscopic treatment of ureteral stones; may overlap with `50970` depending on payer definitions—verify local payer coding rules.
`50590`	Lithotripsy, extracorporeal shock wave (ESWL)	Alternative or adjunct treatment for renal or proximal ureteral stones; may be used before or after ureteroscopy depending on clinical scenario.
`52332`	Cystoureteroscopy, with removal of ureteral calculus; with ureteroscopy and/or pyeloscopy, including intraluminal maneuvers	Used for endoscopic removal of ureteral stones; commonly performed in the same clinical workflow as ureteroscopic stone extraction.
`51020`	Ureteral catheterization, retrograde, not requiring cystoscopy with anesthesia	Ancillary procedure for retrograde pyelography or drainage during endoscopic evaluation; may be used adjunctively during ureteroscopy.