Neoplasm of uncertain behavior of oth female genital organs

This code signifies a tumor of the female reproductive system whose biological behavior cannot be definitively classified as benign or malignant based on current pathological examination. It applies to neoplasms found in specific female genital organs other than the ovary, uterus, or placenta, such as the fallopian tube, vagina, or vulva.

Use this code when pathology reports indicate an uncertain or unknown neoplastic behavior for lesions in specified female genital organs. Documentation should clearly state "uncertain behavior," "unknown behavior," or similar terminology for a tumor in sites like the fallopian tube, vagina, or vulva.

• Ensure the documentation explicitly states "uncertain behavior" or "unknown behavior" for the neoplasm.
• Verify the specific female genital organ involved; this code is for "other specified" sites, not ovary, uterus, or placenta.
• Do not use this code if the pathology definitively identifies the neoplasm as benign (D28.-) or malignant (C51-C57).