ICD-10 Code C50.021 – Malignant neoplasm of nipple and areola, right male breast (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C50.021 – Malignant neoplasm of nipple and areola, right male breast
What it is
C50.021 identifies a malignant tumor arising in the nipple and areola of the right male breast. Use it when the record clearly states cancer in that specific anatomic site.
Clinical signs
Clinical features vary; refer to documentation. Commonly reported findings include a palpable breast or nipple mass, nipple changes, ulceration, or discharge, but the diagnosis must be confirmed by clinical and pathologic evaluation.
When to use this code
Use this code when the provider documents primary malignancy of the nipple and areola on the right side in a male patient. Apply it for confirmed site-specific breast cancer, including pathology or oncology notes that specify this location. Check documentation if laterality or exact site is unclear.
Do not use for
Do not use it for benign breast lesions, inflammatory breast conditions, or unspecified breast cancer sites. Do not assign it if the record does not identify the right nipple and areola as the primary site.
Coding tip
Verify both laterality and exact anatomic site before coding, because unspecified breast cancer codes are different.