Calculus of ureter

This code signifies the presence of a stone (calculus) located within the ureter, the tube connecting the kidney to the bladder. These stones can cause significant pain, obstruction of urine flow, and potential complications such as infection or kidney damage.

Use this code when documentation clearly indicates a ureteral calculus. This typically includes findings from imaging studies (e.g., CT scan, ultrasound, KUB X-ray) or direct visualization during procedures like ureteroscopy. Symptoms such as flank pain radiating to the groin, hematuria, or dysuria in conjunction with imaging confirmation support its use.

• Always specify laterality (left, right, bilateral) if documented, using more specific codes if available.
• Do not confuse with renal calculus (N20.0) or calculus of lower urinary tract, unspecified (N21.9).
• Code any associated complications, such as hydronephrosis (N13.x) or urinary tract infection (N39.0), as secondary diagnoses.