American Health Security Act of 2003

Entitles every individual who is a U.S. resident and is a U.S. citizen or national or a lawful resident alien to benefits under a program. Makes benefits portable.

Supersedes titles XVIII (Medicare) and XIX (Medicaid) of the Social Security Act, the Federal Employees Health Benefits Program, and the Civilian Health and Medical Program of the Uniformed Services (CHAMPUS).

Prohibits: (1) deductibles, coinsurance, or copayments for acute care and preventive benefits, subject to exception; (2) providers from charging a patient for covered services; and (3) duplicative private insurance.

Considers a health care provider to be qualified if the provider is licensed or certified and meets State law requirements, Federal requirements, and additional standards specified by the Board.

Establishes the American Health Security Standards Board (the Board) to develop policies and procedures for enrollment, benefits, provider participation, national and State funding levels, assisting programs with planning for capital expenditures and service delivery, and other functions. Mandates uniform reporting standards.

Establishes the American Health Security Quality Council to review and evaluate: (1) practice guidelines; (2) standards of quality, performance measures, and medical review criteria; and (3) develop minimum competence criteria.

Directs the Board to establish a national health security budget specifying the total expenditures to be made by the Federal Government and the States for covered health care services.

Amends the Internal Revenue Code to create the American Health Security Trust Fund and appropriates to the Fund specified tax liabilities and current health program receipts.