Secondary malignant neoplasm of bilateral ovaries

This code signifies the presence of metastatic cancer that has spread to both ovaries from a primary tumor located elsewhere in the body. It indicates that the ovarian malignancy is not the original site of the cancer but rather a secondary deposit.

Apply this code when documentation explicitly states a secondary or metastatic malignant neoplasm affecting both ovaries. This is commonly seen in cases where the primary cancer (e.g., colon, breast, stomach) has disseminated to the reproductive system.

• Always identify and code the primary malignant neoplasm first, followed by this code.
• Ensure documentation specifies "bilateral" involvement; otherwise, use the appropriate unilateral code (C79.61 or C79.62).
• Distinguish from primary ovarian cancer (C56.-) where the ovary is the origin of the malignancy.