C50.829

Billable

Malignant neoplasm of overlapping sites of unspecified male breast

HCC Category Mapping

V28HCC 23 — Melanoma and Other Skin Cancers

0.251

V24HCC 12 — Breast, Prostate, and Other Cancers and Tumors

0.150

ESRDHCC 12 — Breast, Prostate, and Other Cancers and Tumors

0.000

RxHCCHCC 22 — Cancer, Other Specified Sites

0.000

What This Code Means

Cancer that involves multiple areas of the breast in a male patient, but the specific side (left or right) is not documented or specified.

Coding Tips

•Use this code only when the laterality of the male breast cancer is unknown or not documented
•Query the provider if laterality can be determined from imaging or pathology reports

Clinical Significance

This is the least specific overlapping site code for male breast cancer, lacking both laterality specification and individual subsite identification. For a rare malignancy like male breast cancer, this level of nonspecificity should be exceptional and triggers concern about documentation completeness.

Documentation Requirements

✓Confirmed male patient sex
✓Documentation of overlapping breast site involvement
✓Clinical explanation for unspecified laterality
✓Evidence of attempted laterality clarification
✓Histological type and staging when available

Commonly Confused Codes

C50.821 — Overlapping sites of right male breast; use when right is confirmed C50.822 — Overlapping sites of left male breast; use when left is confirmed C50.929 — Unspecified site of unspecified male breast; different designation — unknown location vs. overlapping

Code Hierarchy

└C50Malignant neoplasm of breast └C50.8Malignant neoplasm of overlapping sites of breast └C50.82Malignant neoplasm of overlapping sites of breast, male └C50.829Malignant neoplasm of overlapping sites of unspecified male breast

└C50.829Malignant neoplasm of overlapping sites of unspecified male breast