Final answer:
The appropriate coding and sequencing for this encounter would be option C: C50.111, Malignant neoplasm of central portion of right female breast and Z40.01, Encounter for prophylactic removal of breast.
Step-by-step explanation:
The appropriate coding and sequencing for this encounter would be option C: C50.111, Malignant neoplasm of central portion of right female breast and Z40.01, Encounter for prophylactic removal of breast. This coding accurately reflects the patient's diagnosis of cancer in the central portion of her right breast and her wish to have her left breast removed as a proactive measure. The first diagnosis code (C50.111) represents the cancer diagnosis, and the second code (Z40.01) represents the encounter for prophylactic removal of breast.