What is LIFETIME RESERVE DAYS?
LIFETIME RESERVE DAYS meaning In the Original Medicare Plan, 60 days that Medicare will pay for when you are in a hospital more than 90 days during a benefit period. These 60 reserve days can be used only once during your lifetime. For each lifetime reserve day, Medicare pays all covered costs except for a daily coinsurance ($438 in 2004).
reference: Centers for Medicare & Medicaid Services