ICD-10 Code D29.21 – Benign neoplasm of right testis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D29.21 – Benign neoplasm of right testis
What it is
This code identifies a noncancerous growth located in the right testis. It is used when documentation confirms a benign testicular neoplasm rather than an inflammatory or malignant condition.
Clinical signs
Findings may include a painless testicular mass, swelling, or an incidental imaging abnormality. Clinical features vary; refer to documentation.
When to use this code
Use D29.21 when the provider documents a benign tumor of the right testis, such as on pathology, imaging, or operative findings. You should also use it when the record clearly distinguishes the lesion as nonmalignant. If laterality is specified as right, this code is appropriate.
Do not use for
Do not use this code for malignant testicular neoplasms, unspecified laterality, or benign conditions that are not neoplasms. Check documentation if the lesion is inflammatory, cystic, or otherwise not confirmed as a tumor.
Coding tip
Verify both benign behavior and right-sided laterality before assigning D29.21.