In simple words: This code is used when a patient has their ovaries removed to prevent the development of diseases, like ovarian cancer.

Encounter for prophylactic removal of ovary(s) to reduce the risk of future disease, such as ovarian cancer.

Example 1: A 35-year-old female with a strong family history of ovarian cancer and a BRCA1 gene mutation undergoes prophylactic oophorectomy., A 40-year-old female with a history of breast cancer and a known BRCA2 gene mutation opts for prophylactic removal of her ovaries to reduce her risk of developing ovarian cancer., A 25-year-old female with Lynch syndrome undergoes risk-reducing bilateral salpingo-oophorectomy (removal of ovaries and fallopian tubes), and Z40.02 is used to code the encounter for the prophylactic removal of the ovaries, while another code would be used for the removal of the fallopian tubes.

Documentation should include a detailed family history, genetic testing results (if applicable), patient consent, operative report, and any associated diagnoses such as BRCA1/2 mutations or Lynch syndrome that support the medical necessity of the procedure.

** Z40.02 is used for prophylactic removal specifically of the ovaries. If other organs are also removed prophylactically during the same encounter, additional codes should be used to reflect those procedures (e.g., Z40.03 for fallopian tubes). This code is distinct from codes used for organ donation (Z52.-) or therapeutic organ removal, which are coded based on the condition necessitating the removal.