Short answer: No. Medicare covers skilled nursing facility care only after a medically necessary inpatient stay of at least 3 consecutive days, counting the admission day but not the discharge day; time in the emergency room or under observation before admission does not count.
This is the most expensive surprise in Original Medicare. A patient can be in the hospital four days, three of them under observation, and have only one inpatient day. Without a qualifying stay, Part A pays nothing for the skilled nursing facility (SNF) and the family owes the full daily rate.
The other conditions: the person generally must enter the SNF within 30 days of leaving the hospital, need daily skilled care, and have days left in the benefit period. For 2026, a qualifying SNF stay costs $0 per day for days 1 to 20, $217 per day for days 21 to 100, and all costs after day 100.
Exceptions: a doctor in an ACO approved for a SNF 3-day rule waiver, and Medicare Advantage plans, which may waive the requirement. If the stay does not qualify, ask about home health care, Medicaid or VA benefits, and consider the observation appeal rights covered in other cards.