Malignant neoplasm of upper-inner quadrant of female breast

This code signifies a cancerous tumor originating in the upper-inner quadrant of a female's breast. It indicates a primary malignancy, not a metastatic lesion from another site. The neoplasm is confined to this specific anatomical region of the breast.

Apply this code when documentation explicitly states a primary malignant neoplasm located in the upper-inner quadrant of the female breast. This is appropriate for initial diagnosis, treatment, and follow-up care of such a malignancy. Supporting documentation includes pathology reports, operative notes, and physician progress notes.

• Ensure the documentation specifies "upper-inner quadrant" and not a different quadrant or unspecified location.
• Do not use this code for metastatic breast cancer; use secondary malignancy codes instead.
• Verify the patient's gender is female, as this code is specific to female breast malignancy.