Duplication of ureter

This code describes a congenital anomaly where a patient has two ureters draining a single kidney, either partially or completely. This duplication can lead to various urinary tract issues, including reflux, obstruction, or recurrent infections.

Use this code when documentation clearly indicates the presence of a duplicated ureter, identified through imaging studies such as ultrasound, CT, or MRI. It is appropriate for both symptomatic and incidentally discovered cases of ureteral duplication.

• Differentiate between complete and incomplete ureteral duplication if specified in the documentation, though this code covers both.
• Code any associated complications, such as hydronephrosis (N13.0-N13.39) or vesicoureteral reflux (N13.7-N13.79), as secondary diagnoses.
• Ensure the documentation specifies "duplication" rather than other ureteral anomalies like ectopia or stricture.