Malignant neoplasm of nipple and areola, unsp male breast

This code identifies a primary cancerous tumor originating in the nipple or areola tissue of an unspecified male breast. It signifies a malignant growth within this specific anatomical region, without further detail regarding the laterality (left or right breast).

Apply this code when documentation confirms a primary malignant neoplasm of the nipple and areola in a male patient, and the medical record does not specify which breast is affected. This is typically used when pathology reports confirm malignancy but laterality is not yet determined or recorded.

• Ensure the documentation explicitly states "male breast" and "nipple and areola" as the tumor site.
• Avoid using this code if laterality (left or right breast) is documented; instead, select the more specific C50.011 or C50.012.
• This code should only be used for primary malignancies, not metastatic disease to the breast.