Not Covered on Medicare Denial Guide — Barley

Medicare Benefit Limit Reached: What to Do Next

Thu, 26 Mar 2026 00:00:00 +0000

What This Means

Medicare has a set number of covered days, visits, or dollar amounts for certain services. Your claim was denied because you have reached that limit. This does not mean the care was unnecessary — it means you have used all the coverage Medicare provides for this type of service in the current time period.

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 a $217/day copay 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:

Medicare Denied a Free Preventive Service

Thu, 26 Mar 2026 00:00:00 +0000

What This Means

Medicare covers many preventive services — like screenings, vaccines, and your annual wellness visit — at no cost to you, as long as you see a provider who accepts Medicare assignment. If you were denied coverage or charged money for a service you believe should have been free, something may have gone wrong with how it was billed.

This is one of the most likely types of denials to be resolved in your favor, because the issue is usually a billing or coding error — not a coverage decision.

Medicare Denied Claim: Covered Under Different Part

Thu, 26 Mar 2026 00:00:00 +0000

What This Means

Medicare did not deny the service itself. Instead, the claim was submitted to the wrong part of Medicare. The service may be fully covered — it just needs to be billed to the correct place.

For example, a prescription drug given to you at home belongs under Part D, while the same drug given by injection at a doctor’s office might belong under Part B. When the claim goes to the wrong part, it gets denied — but that doesn’t mean the service isn’t covered.

Medicare Denied Claim: Wrong Care Setting

Thu, 26 Mar 2026 00:00:00 +0000

What This Means

Medicare denied your claim because the service was provided in a location or care setting that doesn’t match Medicare’s requirements for that type of service. Medicare has specific rules about where certain procedures and treatments can be performed in order to be covered.

This is different from saying the service itself isn’t covered. It may be fully covered — just not at the location where you received it.

Medicare Denied Drug Coverage (Part D Formulary)

Thu, 26 Mar 2026 00:00:00 +0000

What This Means

Your Medicare Part D prescription drug plan denied coverage for a medication. This usually means the drug is not on your plan’s formulary (its list of covered drugs), or the plan requires additional steps before it will cover the drug.

This does not necessarily mean you can’t get the medication covered. Medicare Part D plans have a process for requesting exceptions, and many denials are overturned when your doctor provides supporting documentation.

Medicare Denied Medical Equipment (DME) Claim

Thu, 26 Mar 2026 00:00:00 +0000

What This Means

Medicare denied payment for durable medical equipment (DME) that was ordered for you. DME includes items like wheelchairs, hospital beds, walkers, CPAP machines, oxygen equipment, and diabetic supplies.

Medicare has strict documentation and supplier requirements for DME. A denial usually means one of these requirements wasn’t met — not necessarily that you don’t need the equipment.

Why This Happens

Missing certificate of medical necessity (CMN). For certain equipment categories, your doctor must complete a CMN form documenting your medical need. If this form wasn’t submitted with the claim, it will be denied.
No face-to-face encounter on file. For items like CPAP machines and power wheelchairs, your doctor must have seen you in person within 6 months before ordering the equipment. If this visit isn’t documented, the claim will be denied.
The supplier isn’t enrolled in Medicare. Medicare only pays suppliers that are enrolled in the Medicare program and meet accreditation requirements. CMS requires annual accreditation for DMEPOS suppliers.
Competitive bidding rules weren’t followed. In certain geographic areas, Medicare requires that specific DME items come from suppliers who won contracts through the competitive bidding program. If your supplier isn’t a contract supplier for your area, Medicare may deny the claim.
The equipment wasn’t deemed medically necessary. Medicare may have determined that the documentation didn’t support the need for the specific equipment ordered, or that a less costly alternative would meet your needs.
Prior authorization wasn’t obtained. Some DME items require prior authorization before delivery. If your supplier didn’t get advance approval, the claim may be denied.

Should You Appeal?

Appeal outlook: Mixed

DME denials are often caused by documentation gaps that can be fixed. KFF (2024) found that over 80% of appealed Medicare Advantage denials were overturned.

Medicare Says Another Insurance Should Pay First

Thu, 26 Mar 2026 00:00:00 +0000

What This Means

Medicare believes another insurance plan should pay for this service before Medicare does. Under the Medicare Secondary Payer (MSP) rules, when you have other health coverage, that other insurer may need to pay first. Medicare then pays second, covering some or all of what’s left.

This is usually not a permanent denial. It’s a coordination issue that can be resolved once the right insurer processes the claim first.

Medicare Says This Service Is Not Covered

Thu, 26 Mar 2026 00:00:00 +0000

What This Means

Medicare reviewed your claim and determined that the service you received is not a covered benefit. This means Medicare will not pay for it.

There is an important difference between two types of non-covered services:

Blanket exclusions: Some services are excluded from Medicare by law, such as routine dental care, most vision and hearing services, cosmetic surgery, and long-term custodial care. These cannot be appealed successfully because coverage would require a change in the law.
Situational denials: Some services are covered only in certain circumstances. For example, a service might be covered for one diagnosis but not another, or it might require specific conditions to be met. These denials may be worth appealing.

Why This Happens

The service falls under a statutory exclusion. Medicare law specifically lists certain services it does not cover, including routine dental, vision, hearing aids, and cosmetic procedures.
The diagnosis doesn’t match coverage requirements. Medicare may cover a service for certain conditions but not others. The diagnosis codes on your claim may not have triggered coverage.
The service was coded incorrectly. Sometimes a covered service is billed with the wrong code, making it appear non-covered. A billing correction could resolve this.
A newer treatment isn’t recognized yet. Medicare may not yet have a coverage determination for newer procedures or technologies.

Should You Appeal?

Appeal outlook: Mixed

Whether an appeal makes sense depends on the type of non-covered service: