Anomalous implantation of ureter

This code signifies a congenital malformation where a ureter, the tube carrying urine from the kidney to the bladder, connects to an abnormal location. This anomalous implantation can occur in various sites outside the bladder trigone, such as the urethra, vagina, seminal vesicle, or epididymis. It often leads to urinary incontinence, recurrent urinary tract infections, or hydronephrosis.

Use this code when documentation specifies a congenital anomaly of the ureter's insertion point, distinct from a normal bladder connection. This applies to cases of ectopic ureter, whether symptomatic or identified incidentally. Supporting documentation would include imaging reports (e.g., ultrasound, CT urogram, MRI) or surgical notes confirming the aberrant ureteral termination.

• Differentiate from ureterocele (Q62.3), which is a cystic dilation of the distal ureter within the bladder wall, not an anomalous implantation site.
• Consider laterality if specified in the documentation (e.g., unilateral, bilateral). If not specified, assume unilateral.
• Code any associated complications, such as hydronephrosis (N13.x) or recurrent urinary tract infections (N39.0), as secondary diagnoses.