ICD-10 Code D29.3 – Benign neoplasm of epididymis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D29.3 – Benign neoplasm of epididymis
What it is
D29.3 identifies a noncancerous tumor of the epididymis, the coiled duct behind the testis. Use it when documentation confirms a benign epididymal mass or neoplasm.
Clinical signs
Clinical features vary; refer to documentation. Commonly, the finding is an incidental or palpable scrotal mass, sometimes with localized swelling or discomfort, and imaging or pathology may support a benign epididymal lesion.
When to use this code
Use D29.3 when the provider documents a benign neoplasm of the epididymis, whether confirmed by pathology, imaging impression, or operative diagnosis. It fits cases where the lesion is specifically epididymal and not described as testicular, spermatic cord, or unspecified scrotal mass.
Do not use for
Do not use this code for malignant tumors, inflammatory epididymal disorders, or nonspecific scrotal swelling. If the record only says “mass” without a benign epididymal diagnosis, check documentation.
Coding tip
Code the exact anatomic site; if the note does not clearly identify the epididymis as the origin, query the provider before assigning D29.3.