§ 409.65 Lifetime reserve days.

(a) Election not to use lifetime reserve days. (1) Whenever a beneficiary has exhausted the 90 regular benefit days, the hospital or CAH may bill Medicare for lifetime reserve days unless the beneficiary elects not to use them or, in accordance with paragraph (b) of this section, is deemed to have elected not to use them.

(2) It may be advantageous to elect not to use lifetime reserve days if the beneficiary has private insurance coverage that begins after the first 90 inpatient days in a benefit period, or if the daily charge is only slightly higher than the lifetime reserve days coinsurance amount. In such cases, the beneficiary may want to save the lifetime reserve days for future care that may be more expensive.

(3) If the beneficiary elects not to use lifetime reserve days for a particular hospital or CAH stay, they are still available for a later stay. However, once the beneficiary uses lifetime reserve days, they can never be renewed.