When Medicare Covers Skilled Nursing Care
Medicare Part A covers care in a skilled nursing facility (SNF) when you need skilled medical services — such as physical therapy, intravenous medications, or wound care — on a daily basis following a qualifying hospital stay. This benefit is among the most misunderstood in all of Medicare, and the strict eligibility rules surprise many beneficiaries and their families.
The Three-Day Hospital Stay Rule
To qualify for SNF coverage, you must have a qualifying inpatient hospital stay of at least 3 consecutive days (not counting the discharge day). The SNF admission must occur within 30 days of the hospital discharge. This rule trips up many beneficiaries because:
- Observation status does not count — If you are in the hospital under "observation" rather than formally admitted as an inpatient, those days do not count toward the 3-day requirement, even if you spend 4+ days in the hospital
- The Medicare Outpatient Observation Notice (MOON) — Hospitals must notify you in writing if you have been in observation status for more than 24 hours. Always ask your admission status on arrival.
Cost-Sharing in a Skilled Nursing Facility
| Days | Your Cost (2026) | Medicare Pays |
|---|---|---|
| Days 1–20 | $0 | 100% of approved charges |
| Days 21–100 | $215.50/day coinsurance | Remainder of approved charges |
| Days 101+ | 100% (Medicare coverage ends) | $0 |
The coinsurance for days 21-100 is substantial: a full 80-day extension would cost $17,240 out of pocket. This is one of the primary costs that Medigap supplemental plans cover — Plans C, F, G, and N all pay the SNF coinsurance in full.
What Skilled Nursing Covers
During a covered SNF stay, Medicare pays for:
- Semi-private room and board
- Skilled nursing care (24-hour availability)
- Physical, occupational, and speech therapy
- Medications administered during the stay
- Medical social services
- Dietary counseling
- Ambulance transportation to nearest required medical services
- Medical supplies and equipment used during the stay
What Ends SNF Coverage
Medicare stops paying for SNF care when any of these occur:
- You no longer need daily skilled care (custodial care alone does not qualify)
- You are not making progress toward recovery goals and skilled care is not needed for maintenance
- You have used all 100 days in a benefit period
- You no longer meet Medicare criteria as determined by the facility and Medicare reviewers
The Jimmo settlement
An important legal clarification: the Jimmo v. Sebelius settlement established that Medicare cannot deny SNF coverage solely because a patient is not improving. Skilled care needed to maintain function or prevent decline qualifies for coverage. If your SNF stay is denied based on lack of improvement, this is potentially grounds for appeal.
Skilled Nursing vs. Custodial Care
The critical distinction Medicare makes:
| Skilled Care (Covered) | Custodial Care (Not Covered) |
|---|---|
| Physical therapy for post-hip replacement rehab | Help with bathing and dressing without skilled need |
| IV antibiotics administration | Supervision for safety/dementia without skilled services |
| Complex wound care requiring nursing assessment | Long-term residential care in a nursing home |
| Medication management after acute illness | Companionship and meal assistance |
For ongoing custodial nursing home care, Medicaid is the primary payer for those who qualify financially. Many families must plan for Medicaid eligibility through careful asset management. See our guide on state-by-state Medicaid rules for nursing home coverage.
Medicare Advantage and SNF Care
Medicare Advantage plans cover SNF care with the same basic benefit but may have different cost-sharing structures and network requirements. Some MA plans have eliminated the 3-day hospital stay requirement for SNF admission — a significant advantage. Check your specific plan's Evidence of Coverage document. If your plan requires using an in-network SNF, verify which facilities are available in your service area before you need one.
Planning Ahead
The average SNF stay is approximately 25 days. If you anticipate needing SNF care — for example, after a planned joint replacement surgery — confirm your hospital admission status, choose a Medicare-certified SNF with strong quality ratings, and ensure your supplemental coverage (Medigap or MA plan) will adequately cover the coinsurance for days 21 and beyond.