Congenital megaureter

This code identifies a congenital anomaly characterized by a significantly dilated ureter, often due to an obstruction or a functional defect in the ureteral wall. It can lead to urinary stasis, recurrent urinary tract infections, and progressive renal damage if left untreated. The condition is present at birth, though it may be diagnosed later in life.

Assign this code when documentation confirms a diagnosis of congenital megaureter, regardless of whether it is obstructive or non-obstructive. This diagnosis is typically supported by imaging studies such as ultrasound, voiding cystourethrogram (VCUG), or renal scan, demonstrating ureteral dilation. Use this code for both symptomatic and asymptomatic presentations of the congenital anomaly.

• Differentiate from acquired ureteral dilation, which would be coded differently.
• Specify laterality if documented (e.g., left, right, bilateral) using additional codes if available for laterality.
• Consider sequencing with codes for any associated complications, such as hydronephrosis or urinary tract infection.