Medicare Glossary: Simple Definitions & Terms

Under Medicare Part A, you have 60 additional inpatient hospital days you can use over your lifetime after you use up the regular covered days in a benefit period. Once used, these days cannot be renewed. You pay a daily coinsurance for each lifetime reserve day.

The highest amount a non-participating provider who does not accept assignment is allowed to charge for a Medicare-covered service — capped at 15% above the Medicare-approved amount.