ICD-10 Code C50.62 – Malignant neoplasm of axillary tail of breast, male (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C50.62 – Malignant neoplasm of axillary tail of breast, male
What it is
C50.62 identifies a malignant tumor in the axillary tail of the male breast, the portion that extends toward the armpit. Use it when documentation specifies this breast cancer location in a male patient.
Clinical signs
Findings may include a palpable mass in the axillary tail, breast asymmetry, skin changes, or nipple involvement. Clinical features vary; refer to documentation and pathology for confirmation.
When to use this code
Use C50.62 when the provider documents primary cancer arising in the axillary tail of the breast and the patient is male. It is appropriate for confirmed malignancy, including biopsy or pathology-supported diagnoses. If the site is described only as breast cancer without location, check documentation before assigning this code.
Do not use for
Do not use this code for benign breast masses, metastatic disease to the breast, or unspecified breast sites. If the record does not clearly identify the axillary tail, check documentation.
Coding tip
Verify both laterality details and the exact anatomic site in the operative note, pathology report, or oncology assessment before coding.