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Medicare Benefit Limit Reached: What to Do Next

Name: Medicare Benefit Limit Reached: What to Do Next
Creator: Barley Billing Team
Published: 2026-03-26

Written by Barley Billing Team, Medicare Billing Experts | Fact-checked against primary CMS sources | Last reviewed October 2, 2026

Does this sound like your situation?

"Medicare says I used all my covered days"

"I hit the benefit limit for my service"

"My skilled nursing or hospital days ran out"

Let's check whether the limit was applied correctly and what options you have left.

What This Means

Your notice carries one of two codes, and which one it is decides whether the coverage comes back: CARC code CO-119, “Benefit maximum for this time period or occurrence has been reached,” or CO-35, “Lifetime benefit maximum has been reached.” A CO-119 maximum is tied to a time period or occurrence, so it can start fresh when a new one begins; a CO-35 lifetime maximum does not renew. Either way, this does not mean the care was unnecessary — it means you have used all the coverage Medicare provides for this service.

For Part A hospital and skilled nursing coverage, a benefit period ends after 60 consecutive days without inpatient hospital care or skilled-level SNF care (42 CFR 409.60). You may still live in a SNF while receiving only custodial care during that break. A later qualifying admission starts a new benefit period and restores regular hospital and SNF days, but lifetime reserve days do not renew. Check your Medicare Summary Notices and care records for the last inpatient hospital day and last skilled-level SNF day before counting 60 days.

Not sure this is your situation? Coverage can stop for reasons that feel like a used-up benefit but are not:

Was your therapy denied because you were not improving, or because the care was called maintenance — rather than because your therapy spending passed a threshold? See therapy denied.
Did skilled nursing coverage end before you used all 100 days, or did the facility hand you a written notice that Medicare coverage is ending? See skilled nursing denied — a notice that ends coverage early carries a much shorter appeal deadline.
Was the denial about how many services you received being judged unsupported, rather than a benefit you used up? See too many visits.

Common benefit limits include:

Hospital stays (Part A): 90 days per benefit period, plus 60 lifetime reserve days
Skilled nursing facility: Up to 100 days per benefit period (with full coverage for days 1-20 and $217/day coinsurance for days 21-100 in 2026)
Therapy services: Spending thresholds that trigger additional review requirements

Why This Happens

You’ve been in the hospital for an extended stay. Part A covers up to 90 days per benefit period. After that, your 60 lifetime reserve days can be used, but once those are gone, they don’t come back.
You’ve been in a skilled nursing facility beyond 100 days. Medicare covers up to 100 days of SNF care per benefit period. After day 100, Medicare stops paying entirely.
Your therapy spending has passed the threshold. For 2026, the KX modifier threshold is $2,480 for physical therapy and speech-language pathology combined, and $2,480 for occupational therapy. If your provider didn’t include the required modifier or documentation, claims above this threshold may be denied.
You have multiple hospital or skilled nursing stays close together. A new inpatient hospital stay or skilled-level SNF care during the 60-day break can keep you in the same benefit period, so the pool of covered days may not have reset.

Should You Appeal?

Appeal outlook: Weak

Benefit limits are set by law, so appeals rarely succeed when the limit has genuinely been reached. However, there are situations where an appeal is worthwhile:

The day count is wrong. If Medicare or your plan miscounted your covered days, an appeal can correct the error.
Your benefit period should have reset. If 60 consecutive days passed without inpatient hospital care or skilled-level SNF care, a new benefit period should start with a later qualifying admission. Remaining in a SNF for custodial care alone does not stop that clock.
The therapy threshold denial was a coding issue. If your provider forgot to include the KX modifier confirming medical necessity, the claim can be corrected and resubmitted.

If none of these apply, the denial will likely stand.

What To Do Next

Verify the day or visit count. Review your Medicare Summary Notices to count the days or visits yourself. Errors happen, especially with multiple hospital stays.
Check whether your benefit period reset. Find the last day of inpatient hospital care or skilled-level SNF care, then count 60 consecutive days without either. A custodial stay in the SNF does not by itself interrupt the count; a new qualifying admission after the gap starts a new benefit period.
For therapy denials, contact your provider. Ask if the KX modifier was included on the claim. If it was missing and your therapy is medically necessary, the provider can resubmit the claim with the modifier.
Explore other coverage options. If you have truly exhausted your benefit, look into whether Medicaid, a Medigap plan, or hospital financial assistance programs can help cover the remaining costs.
Contact 1-800-MEDICARE (1-800-633-4227) or your State Health Insurance Assistance Program (SHIP) if you need help understanding your remaining benefits.

Sources

Medicare.gov: Inpatient Hospital Care Coverage
CMS: 2026 Medicare Parts A & B Premiums and Deductibles
CMS: Therapy Services (KX modifier thresholds)
X12: Claim Adjustment Reason Codes — official CARC code definitions
42 CFR 409.60: Benefit periods — the 60-day rule and the skilled-level SNF care test for ending a benefit period.

Not sure if your denial is worth appealing? Check your notice against Medicare's rules →

Appeal Deadlines — Check Your Notice for Exact Dates

Original Medicare

120 days from the date you receive your MSN (presumed 5 days after the date on it)

Medicare Advantage

65 days from the date on your denial notice

Not sure which you have? Check the top of your denial notice. If it names a private insurance company (like Humana, UnitedHealthcare, or Aetna), you have Medicare Advantage. If it says "Centers for Medicare & Medicaid Services," you have Original Medicare.

Frequently Asked Questions

What is a Medicare benefit period?

A benefit period starts when you receive inpatient hospital or skilled nursing facility (SNF) care. It ends after 60 consecutive days without inpatient hospital care or skilled-level SNF care. You can remain in a SNF for custodial care during that 60-day break. A new benefit period restores regular Part A hospital and SNF days if you meet coverage requirements, but lifetime reserve days do not renew.

What are lifetime reserve days?

You have 60 lifetime reserve days that can be used for hospital stays that go beyond 90 days in a single benefit period. In 2026, you pay $868 per day for each lifetime reserve day used. Once all 60 are used, they are gone permanently — they do not renew.

Are there still therapy caps in Medicare?

The old hard therapy caps were eliminated, but Medicare still has therapy thresholds. For 2026, when physical therapy and speech-language pathology services combined exceed $2,480, or occupational therapy services exceed $2,480, providers must confirm medical necessity with a KX modifier. Claims above $3,000 may be subject to medical review.

What happens if I run out of covered hospital days?

If you exhaust your 90 regular hospital days and 60 lifetime reserve days in a benefit period, Part A generally stops paying for further inpatient hospital days in that period. A new benefit period begins after 60 consecutive days without inpatient hospital care or skilled-level SNF care; it restores the 90 regular days, but not lifetime reserve days already used.

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This information is for educational purposes only and is not legal or medical advice. Always verify with your doctor's office and insurance company.