Genetic susceptibility to malignant neoplasm of fallop(s)

This code indicates a patient has a documented genetic predisposition or inherited risk factor that increases their likelihood of developing cancer in one or both fallopian tubes. It signifies a genetic mutation or inherited syndrome that elevates the risk for fallopian tube malignancy, even in the absence of current disease.

Apply this code when a patient has undergone genetic testing confirming a mutation (e.g., BRCA1, BRCA2, Lynch syndrome) known to increase fallopian tube cancer risk. It is appropriate for prophylactic counseling, surveillance, or when documenting a patient's high-risk status for future screening and management.

• Always sequence this code as a secondary diagnosis, following a personal or family history code if applicable.
• Do not use this code if the patient currently has a fallopian tube malignancy; instead, code the active neoplasm.
• Ensure documentation clearly supports a genetic susceptibility, not just a general family history of cancer.