Medicare covers hospital stays without a yearly limit, but you pay different amounts depending on how long you stay and whether it's your first admission or a readmission within 60 days.

Original Medicare (Parts A and B) does not cap the number of times you can be admitted to the hospital in a calendar year. However, each stay triggers its own set of costs. You pay a deductible when you enter the hospital — currently $1,676 per benefit period — and then copayments for each day after day 60 of a single continuous stay. A benefit period ends when you have been out of the hospital for 60 consecutive days.

If you are readmitted within 60 days of your last discharge, that counts as part of the same benefit period, so you do not pay another deductible. If you stay out for 60 days or longer and then return, a new benefit period begins and you owe a new deductible.

Key Takeaways

  • Medicare Part A covers unlimited hospital admissions per year, but you pay a deductible ($1,676 in 2024) at the start of each new benefit period.
  • A benefit period is a hospital stay plus the 60 days after discharge; readmissions within those 60 days do not trigger a new deductible.
  • You pay copayments for days 61–90 of a single stay ($419 per day in 2024) and higher copayments for lifetime reserve days beyond day 90.
  • Medicare Advantage plans (Part C) may have different rules, including annual limits on hospital days or different cost structures.
  • Skilled nursing facility coverage is separate from hospital coverage and has its own daily limits and costs.

What You Pay During a Hospital Stay

Your costs depend on how many days you spend in the hospital during one continuous stay. Days 1–60 are covered after you pay the deductible; you have no additional copayments for these days. Starting on day 61, you owe a daily copayment — $419 per day in 2024 — for days 61 through 90.

If you need to stay longer than 90 days, Medicare provides lifetime reserve days. You have 60 of these reserve days available for your entire lifetime. The copayment for reserve days is higher: $838 per day in 2024. Once you use your lifetime reserve days, Medicare stops covering hospital care, and you are responsible for all remaining costs.

How Benefit Periods Work

Understanding benefit periods is the key to knowing when you owe a new deductible. A benefit period starts the day you enter the hospital and ends 60 days after you are discharged. If you go home on day 30 and return to the hospital on day 45, you are still in the same benefit period — no new deductible.

If you are discharged and stay out of the hospital for 60 consecutive days, the benefit period ends. When you are admitted again after those 60 days pass, a new benefit period begins and you owe a new deductible. This means you could theoretically have multiple benefit periods — and multiple deductibles — in a single calendar year if you are admitted, discharged for 60+ days, and admitted again.

Medicare Advantage Plans Have Different Rules

If you have a Medicare Advantage plan (Part C), your hospital coverage works differently. These plans are run by private insurance companies and must cover at least what Original Medicare covers, but they can structure costs their own way. Some Advantage plans set an annual limit on the number of hospital days covered, while others use copayments per admission instead of per day.

You should check your plan's Summary of Benefits or call the plan directly to learn your specific hospital coverage limits and costs. Advantage plans also vary in whether they cover out-of-network hospitals and what happens if you exceed your plan's limits.

Skilled Nursing Facility Coverage Is Separate

If you need ongoing care after a hospital stay, you may move to a skilled nursing facility (SNF). This is not the same as a hospital stay, and it has separate coverage rules. Medicare Part A covers up to 100 days in an SNF per benefit period, but only if you were hospitalized for at least three consecutive days first.

You pay nothing for days 1–20 of SNF care. For days 21–100, you pay a daily copayment ($209.50 per day in 2024). After day 100, Medicare stops covering SNF care. This limit resets when your hospital benefit period ends.

What Happens If You Exceed Your Coverage

If you stay in the hospital beyond day 90 and have already used all 60 of your lifetime reserve days, you become responsible for all hospital bills. This can cost thousands of dollars per day. Some people purchase Medigap coverage (supplemental insurance) specifically to cover costs that Original Medicare does not pay, including hospital costs beyond the covered days.

If you have a Medicare Advantage plan and exceed its limits, you may owe the full cost of care or be required to transfer to a different facility. It is important to understand your plan's rules before a long hospital stay occurs.

Planning for Multiple Hospital Stays

If you have a chronic condition that requires repeated hospitalizations, timing matters. If you know you will need to return to the hospital, try to schedule your readmission within 60 days of your last discharge if possible — this keeps you in the same benefit period and avoids a second deductible. However, do not delay necessary medical care to save money.

If you are facing a long hospital stay, ask the hospital's financial counselor about your costs before or shortly after admission. They can explain what Medicare will cover and what you will owe. If costs are a concern, they may also know about financial information programs or payment plans.

Frequently Asked Questions

Do I pay a deductible every time I go to the hospital?

No. You pay a deductible only when a new benefit period starts. If you are readmitted within 60 days of your last discharge, you are still in the same benefit period and do not owe another deductible. A new deductible applies only after you have been out of the hospital for 60 consecutive days.

What if I am in the hospital on December 31 and stay through January 1?

The calendar year does not matter for hospital coverage. Your benefit period is based on your hospital stay and the 60 days after discharge, not on the calendar. A stay that crosses into a new year is still part of the same benefit period.

Can I use my lifetime reserve days all at once or do I have to spread them out?

You can use them however your hospital stay requires. If you need 40 extra days beyond day 90, you use 40 of your 60 lifetime reserve days. You have 20 reserve days left for the rest of your life. Once they are gone, they do not renew.

Does my Medicare Advantage plan cover the same number of hospital days as Original Medicare?

Medicare Advantage plans must cover at least what Original Medicare covers, but they may structure it differently. Some plans have annual limits, others use per-admission copayments, and some may require prior authorization. Check your plan documents or call your plan to learn your specific coverage.

What if I cannot afford my hospital bills after Medicare coverage ends?

Talk to the hospital's financial counselor or billing department about payment plans, financial information, or charity care programs. Some hospitals have funds to help uninsured or underinsured patients. You can also explore Medigap plans if you are not yet enrolled, though they have waiting periods for pre-existing conditions.