ICD-10 Code C50.122 – Malignant neoplasm of central portion of left male breast (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C50.122 – Malignant neoplasm of central portion of left male breast
What it is
C50.122 identifies a malignant tumor arising in the central portion of the left breast in a male patient. Use it when documentation specifies both the left side and the central breast location.
Clinical signs
Typical findings may include a palpable breast mass, nipple changes, or local skin or tissue involvement. Clinical features vary; refer to documentation and pathology when available.
When to use this code
Use this code when the record clearly states primary breast cancer in the central portion of the left male breast. It is appropriate for confirmed diagnoses, oncology follow-up tied to the active malignancy, and staging documentation that still identifies the tumor site.
Do not use for
Do not use it for female breast cancer, unspecified breast site, or benign breast lesions. If the note does not confirm the central left male breast site, check documentation.
Coding tip
Always match laterality, sex, and tumor location exactly to the provider’s wording before assigning C50.122.