Atrophy of testis

This code signifies a reduction in the size and function of one or both testes due to a decrease in the number or size of the testicular cells. This condition can lead to impaired spermatogenesis and decreased testosterone production.

Assign this code when documentation specifies testicular atrophy, regardless of laterality or underlying cause. Supporting documentation includes physician notes detailing physical exam findings (e.g., small, soft testes) or imaging reports confirming testicular volume reduction.

• Do not use this code for congenital absence of the testis (anorchia) or undescended testis (cryptorchidism).
• Always code any underlying cause of the atrophy, such as orchitis, varicocele, or mumps, if documented.
• Specify laterality if documented (e.g., right, left, bilateral) using a more specific subcategory if available.