ICD-10 Code C50.12 – Malignant neoplasm of central portion of breast, male (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C50.12 – Malignant neoplasm of central portion of breast, male
What it is
C50.12 identifies a malignant tumor arising in the central portion of the male breast, including the nipple and areolar area when documented as central. Use it for primary breast cancer in this location.
Clinical signs
Clinical features may include a palpable breast mass, nipple changes, skin dimpling, or nipple discharge. Clinical features vary; refer to documentation and pathology when available.
When to use this code
Use this code when the provider documents primary malignant neoplasm of the central portion of the breast in a male patient. It also fits when the lesion is specified as central breast, nipple, or areolar region and no more specific site is stated.
If laterality or a different breast subsite is documented, code that specific site instead. Confirm whether the cancer is primary or metastatic before assigning C50.12.
Do not use for
Do not use C50.12 for benign breast disease, breast infection, or metastatic disease to the breast. Check documentation if the record describes a different breast quadrant or unspecified breast site.
Coding tip
Verify the exact breast subsite and whether the tumor is primary before coding C50.12.