Ectopic perineal testis, unilateral

This code signifies a congenital anomaly where a single testis is located outside its normal scrotal position, specifically in the perineum. This condition results from an abnormal descent of the testis during fetal development, leading to its ectopic placement.

Apply this code when documentation clearly indicates a unilateral ectopic testis located in the perineal region. This diagnosis is typically made during physical examination in infancy or childhood. Supporting documentation would include physician notes detailing the physical findings and location of the testis.

• Ensure documentation specifies "unilateral" and "perineal" to accurately assign this code.
• Distinguish from undescended testis (cryptorchidism) where the testis is arrested along its normal descent path, not in an ectopic location.
• Do not use for bilateral conditions; a separate code would be required for each side if both were affected.