NEW YORK - October 24, 2011 - A growing number of states are sharply limiting hospital stays under Medicaid to as few as 10 days a year to control rising costs of the health insurance program for the poor and disabled.

Advocates for the needy and hospital executives say the moves will restrict access to care, force hospitals to absorb more costs, and lead to higher charges for privately insured patients.

States defend the actions as a way to balance budgets hammered by the economic downturn and the end of billions of dollars in federal stimulus funds this summer that had helped prop up Medicaid, financed jointly by states and the federal government.

Arizona, which last year stopped covering certain transplants for several months, plans to limit adult Medicaid recipients to 25 days of hospital coverage a year, starting as soon as the end of October.

Hawaii plans to cut Medicaid coverage to 10 days a year in April, the fewest of any state.

Both efforts require federal approval, which state officials consider likely because several other states already restrict hospital coverage.

Private health insurers generally don't limit hospital coverage, according to America's Health Insurance Plans, a trade group.

Rosemary Blackmon, executive vice president of the Alabama Hospital Association, said "for the most part hospitals do what they can" to provide care to Medicaid patients despite the limits.