Final answer:
The case should be coded and sequenced as Z15.01, Z40.01, Z80.3.
Step-by-step explanation:
The case should be coded and sequenced as follows: Z15.01, Z40.01, Z80.3.
Z15.01 - Genetic susceptibility to malignant neoplasm of the breast. This code is used to indicate the patient's family history and the positive genetic test results.
Z40.01 - Encounter for prophylactic removal of breast. This code is used to indicate the patient's preventive mastectomy.
Z80.3 - Family history of malignant neoplasm of breast. This code is used to indicate the patient's family history of breast cancer.