Malig neoplasm of upper-outer quadrant of right male breast

This code identifies a primary cancerous tumor located in the upper-outer quadrant of a male patient's right breast. This specific quadrant is a common site for breast malignancies. The neoplasm is confirmed as malignant, indicating invasive or in situ carcinoma.

Use this code when documentation clearly specifies a primary malignant neoplasm originating in the upper-outer quadrant of the right breast in a male patient. This diagnosis is typically supported by pathology reports confirming malignancy and imaging studies (e.g., mammogram, ultrasound, MRI) localizing the tumor.

• Ensure the patient's sex is documented as male; otherwise, consider codes for female breast cancer.
• Verify laterality (right breast) and specific quadrant (upper-outer) are explicitly stated in the pathology or operative report.
• Sequence this code as the primary diagnosis when it is the reason for the encounter, followed by any relevant secondary diagnoses or complications.