Not Covered

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 August 17, 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 once you have been out of the hospital or skilled nursing facility for 60 consecutive days, and your next inpatient admission starts a new one — restoring your 90 covered hospital days, though not your 60 lifetime reserve days, which do not renew once used. Start by pulling your Medicare Summary Notices and counting the covered days yourself, watching for any gap of 60 or more consecutive days between stays. A miscount, or a benefit period that should have reset and did not, are the errors an appeal can actually correct.

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 admissions in a short time. If you haven’t been out of the hospital for 60 consecutive days, you may still be in the same benefit period, continuing to use the same pool of covered days.

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 you were out of the hospital for 60 or more consecutive days, a new benefit period should have started, resetting your Part A coverage.
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. If you had a gap of 60 or more consecutive days outside the hospital or SNF, a new benefit period should have started with fresh coverage days.
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

Not sure if your denial is worth appealing? Upload your notice and check it 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 the day you are admitted to a hospital or skilled nursing facility as an inpatient. It ends when you have been out of the hospital or SNF for 60 consecutive days. Each new benefit period resets your Part A coverage days, but not your lifetime reserve days.

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 days and 60 lifetime reserve days in a benefit period, you become responsible for all hospital costs. However, a new benefit period begins after you have been out of the hospital for 60 consecutive days, which resets your 90 regular days (though not your lifetime reserve days).

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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.