Does QMB Pay the Skilled Nursing Facility Daily Coinsurance?

Medicare Part A covers rehabilitation in a skilled nursing facility (SNF) following a qualifying inpatient hospital admission. While the first 20 days carry a $0 copayment, standard Medicare requires a substantial daily coinsurance for days 21 through 100. In 2026, the Medicare skilled nursing facility coinsurance is $217 per day. For enrollees in Qualified Medicare Beneficiary coverage, QMB pays 100% of the daily SNF coinsurance, covering up to $17,360 in rehabilitation costs.

SNF coinsurance under QMB at a glance

• Days 1 through 20 in a skilled nursing facility are covered at 100% by Medicare Part A.
• Days 21 through 100 carry a $217 daily coinsurance in 2026 that QMB pays in full.
• Rehabilitation coverage requires a prior qualifying 3-day inpatient hospital admission.
• QMB covers short-term medical rehab, not permanent custodial nursing home room and board.

Understanding the 100-day Medicare SNF benefit

Medicare Part A provides short-term skilled nursing facility coverage for rehabilitation following an acute illness, injury, or surgery. Common examples include physical therapy after a hip fracture, occupational therapy after a stroke, or wound care following complex surgery.

To qualify for Medicare SNF coverage, the patient must have had a formal inpatient hospital stay of at least three consecutive days (not counting the discharge day or outpatient observation hours), and require daily skilled care that can only be provided in an inpatient facility.

How QMB eliminates SNF daily copayments

For patients who require extended rehabilitation beyond 20 days, out-of-pocket costs accumulate rapidly:

1. Days 1 to 20: Medicare Part A pays 100% of covered charges with $0 patient copay.
2. Days 21 to 100: Standard Medicare imposes a $217 daily coinsurance rate in 2026 ($17,360 total for 80 days).
3. QMB coverage: QMB pays the entire $217 daily charge through state Medicaid coordination, leaving the patient with zero out-of-pocket coinsurance liability.
4. Clinical progress requirement: Coverage continues as long as the rehabilitation team documents ongoing skilled medical need or maintenance care.

Short-term rehabilitation vs. long-term custodial care

It is essential to distinguish skilled nursing rehabilitation from long-term custodial nursing home care. QMB pays Medicare cost-sharing for medical rehab while Medicare covers the stay. Once the patient finishes rehabilitation and transitions to custodial care (help with bathing, eating, or dressing), Medicare ceases coverage. QMB Only does not cover custodial room and board, whereas QMB Plus or institutional Medicaid may pay if the individual qualifies under separate state rules.

For a detailed breakdown of facility care differences, read our guide on whether QMB pays for nursing home care, or estimate your eligibility on our free MSP calculator.

Frequently asked questions