Federal agency of the Department of Veterans Affairs that administers federal health benefit programs for veterans and their family members. These benefit programs include the Civilian Health and Medical Program of the Department of Veterans Affairs (CHAMPVA) including the CHAMPVA In House Treatment Initiative (CITI) and the CHAMPVA Meds by Mail program. HAC also administers the Spina Bifida Health Care Program, the Children of Women Vietnam Veterans Health Care Program, and the Persian Gulf Examination Program for Dependents. HAC also runs two programs specifically designed to cater to veterans: (1) the Foreign Medical Program, which provides service to veterans living or traveling throughout the world, and (2) the Fee program, which provides services to veterans who need care outside a Veterans Affairs medical center. HAC’s responsibilities are benefits management, eligibility determination, customer service, outreach and education, claims processing, appeals and grievances and fraud, and waste and abuse prevention.