Malignant neoplasm of central portion of unsp female breast

This code signifies a cancerous tumor located in the central part of a female breast, where the specific breast (left or right) is not documented. This typically includes the area around the nipple and areola, but can extend to other central regions. It represents a primary malignancy, meaning the cancer originated in this location.

Apply this code when documentation confirms a malignant neoplasm in the central portion of a female breast, and the laterality (left or right breast) is not specified by the provider. This is often used in initial pathology reports or imaging findings before definitive laterality is established.

• Avoid using this code if laterality (left or right breast) is clearly documented; instead, choose a more specific code (C50.111 or C50.112).
• Ensure the documentation explicitly states "central portion" or an equivalent anatomical description to support this site.
• This code should be sequenced as the primary diagnosis when the breast cancer is the reason for the encounter.