C79.82 (Secondary malignant neoplasm of genital organs) compared with D29.3 (Benign neoplasm of epididymis), from the official CMS tabular data. C79.82 and D29.3 name the same anatomical site (epididymis) with a different neoplasm behavior. MedCoder-derived
Same anatomical site, different neoplasm behavior.
Same site — benign neoplasm (epididymis)
The behavior documented for the site — malignant primary, secondary, carcinoma in situ, benign, uncertain or unspecified — decides which column of the neoplasm table, and therefore which code, applies.
Source: CMS Table of Neoplasms
Same site, different neoplasm behavior. C79.82 and D29.3 name the same anatomical site (epididymis) with a different neoplasm behavior.
From the CMS Table of Neoplasms: the behavior documented for that site — malignant primary, secondary, carcinoma in situ, benign, uncertain or unspecified — decides which column, and therefore which code, applies.
| C79.82Secondary malignant neoplasm of genital organs | D29.3Benign neoplasm of epididymis | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | C00-D49 — Neoplasms | C00-D49 — Neoplasms |
| Definition | Secondary malignant neoplasm of genital organs is a billable ICD-10-CM diagnosis code (C79.82). | Benign neoplasm of epididymis is a non-billable ICD-10-CM category code (D29.3). |
| Includes | — | benign neoplasm of skin of male genital organs |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources