Malig neoplm of lower-inner quadrant of right female breast

This code identifies a primary cancerous tumor located in the lower-inner quadrant of the right breast in a female patient. This specific quadrant refers to the section of the breast closest to the sternum and below the nipple line. The malignancy is confirmed pathologically.

Apply this code when documentation clearly specifies a primary malignant neoplasm originating in the lower-inner quadrant of the right female breast. This is typically supported by pathology reports confirming malignancy and imaging reports (e.g., mammogram, MRI) or surgical notes detailing the tumor's precise location within the right breast.

• Ensure the laterality (right breast) and specific quadrant (lower-inner) are explicitly documented.
• Distinguish from other quadrants of the right breast (e.g., C50.211 for upper-inner) and unspecified locations.
• This code is for the primary site; secondary malignancies or metastatic disease would be coded separately.