Medical Expense✓ Verified · outline & fact-checked · Sep 2026Difficulty 3/5
Under Medicare Part A, what is the 'benefit period' (spell of illness), and what role do the lifetime reserve days play?
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Answer & full 3-part explanation (select an option above, or peek)
Why A is correct
Medicare Part A organizes coverage into benefit periods: a benefit period begins when the beneficiary is admitted as an inpatient and ends after 60 consecutive days with no inpatient hospital or skilled nursing care. Within a benefit period, Part A covers up to 90 days of hospitalization (with daily copays for days 61-90) plus a lifetime pool of 60 reserve days for stays beyond 90 days — once used, reserve days are not replenished.
Why the other options are wrong
- B) A benefit period is not a calendar year; it is tied to the 60-consecutive-day gap rule, and the 60 lifetime reserve days are a one-time pool, not annual.
- C) The benefit period does not end simply at discharge; the 60-day gap determines when a new benefit period begins.
- D) Lifetime reserve days apply to inpatient hospital days beyond the 90th day of a benefit period, not to skilled nursing care.
Memory hook
Benefit period = 60 days out of the hospital resets the clock. Reserve days = 60 once-in-a-lifetime extras past day 90.