Copay Fairness for Veterans ActThis bill eliminates veterans' copayments for medication, hospital care, and medical services related to preventive health services provided by the Department of Veterans Affairs.The bill expands the definition of preventive health services to include (1) evidence-based items or services that have an A or B rating in the recommendations of the United States Preventive Services Task Force; (2) immunizations that have a recommendation from the Advisory Committee on Immunization Practices of the Centers for Disease Control and Prevention with respect to the individual involved; and (3) with respect to services for women, the preventive care, screenings, and contraceptives provided for in the Health Resources and Services Administration Preventive Services Guidelines in effect as of December 30, 2022, and any contraceptive approved, granted, or cleared by the Food and Drug Administration, any related contraceptive care, and any related services.