C50.522
BillableMalignant neoplasm of lower-outer quadrant of left male breast
HCC Category Mapping
V28HCC 23 — Melanoma and Other Skin Cancers
0.251V24HCC 12 — Breast, Prostate, and Other Cancers and Tumors
0.150ESRDHCC 12 — Breast, Prostate, and Other Cancers and Tumors
0.000RxHCCHCC 22 — Cancer, Other Specified Sites
0.000What This Code Means
Cancer that develops in the lower-outer area of the left breast in men.
Coding Tips
- •Verify the patient is male and the cancer is located in the left breast lower-outer quadrant
- •Distinguish male breast cancer codes from female codes by checking the 4th digit (2 for male, 1 for female)
Clinical Significance
Male breast cancer of the lower-outer quadrant of the left breast represents a rare but clinically important diagnosis. Male breast cancer tends to present at a more advanced stage than female breast cancer due to lower awareness and delayed diagnosis. Accurate coding supports cancer surveillance programs and risk adjustment.
Documentation Requirements
- ✓Confirmed male patient sex
- ✓Laterality documented as left breast
- ✓Specific quadrant confirmed as lower-outer
- ✓Histological type and grade
- ✓TNM staging
- ✓Hormone receptor status (estrogen receptor, progesterone receptor)
- ✓Current treatment plan or surveillance status
Commonly Confused Codes
Code Hierarchy
└C50Malignant neoplasm of breast└C50.5Malignant neoplasm of lower-outer quadrant of breast└C50.52Malignant neoplasm of lower-outer quadrant of breast, male└C50.522Malignant neoplasm of lower-outer quadrant of left male breast
└C50.522Malignant neoplasm of lower-outer quadrant of left male breast