Catastrophic Health Plan Claim Denied: Under-26 and Hardship Exemption Coverage

Catastrophic health plans are a category of ACA marketplace coverage designed to provide low-premium protection against worst-case health scenarios. Available only to people under 26 or those who qualify for a hardship or affordability exemption, these plans have very high deductibles and limited coverage — but they do cover preventive services and the first three primary care visits per year at no cost. When a claim is denied under a catastrophic plan, understanding exactly what the plan covers and doesn't cover is essential.

Who Can Enroll in Catastrophic Health Plans

Catastrophic health plans are available to two groups:

Adults under age 26. Anyone younger than 26 at the time of enrollment can choose a catastrophic plan on the ACA marketplace. These plans are often attractive to young, healthy adults who want low monthly premiums and are willing to pay a high deductible for significant care.

Individuals with hardship or affordability exemptions. People who qualify for a hardship exemption — because the coverage available to them is deemed unaffordable under ACA guidelines, because they experienced a qualifying hardship event, or because they qualify under another exemption category — can purchase catastrophic coverage regardless of age.

What Catastrophic Plans Cover

The ACA's catastrophic plans must cover:

• All ACA-required essential health benefits (after the deductible is met)
• Preventive services at no cost-sharing
• The first three primary care visits per year at no cost-sharing
• Emergency services, hospitalization, prescriptions, mental health care, etc. — but only after the annual deductible is satisfied

The deductible is set at the ACA's annual out-of-pocket maximum — $9,450 for an individual in 2024 — meaning essentially all non-preventive, non-primary care costs are paid out of pocket until that threshold is reached.

Why Catastrophic Plan Claims Are Denied

Deductible not yet met. The most straightforward "denial" — which is really a cost-sharing requirement, not a true denial — is that the insurer processes the claim but applies it to your deductible rather than paying it. Many catastrophic plan enrollees confuse this with a denial. If you haven't met your deductible, the insurer won't pay for non-exempt services. This is how the plan is supposed to work.

Preventive service coding disputes. The ACA guarantees preventive services without cost-sharing. However, if a preventive visit includes additional diagnostic services or the provider codes the visit as diagnostic rather than preventive, the insurer will deny the preventive service exception and apply the deductible. This is a billing and coding issue, not a true coverage exclusion.

Primary care visit limit disputes. The three free primary care visits per year are a defined benefit. Disputes arise over what constitutes a "primary care visit." Specialist consultations typically don't qualify. Mental health therapy with a primary care physician might or might not qualify depending on the plan's interpretation. If the insurer is applying the visit limit incorrectly, this is appealable.

Out-of-network services. Catastrophic plans have networks like any other plan. If you received care from an out-of-network provider, the insurer may deny or significantly limit coverage. In true emergencies, the No Surprises Act provides protections — but non-emergency out-of-network care under a catastrophic plan may be very limited.

Hardship exemption expiration. If your plan enrollment was based on a hardship or affordability exemption, the exemption must remain valid throughout the plan year. If your circumstances change and the exemption no longer applies, the plan's eligibility for your enrollment may be disputed.

Age transition — turning 26 mid-year. When a catastrophic plan enrollee turns 26 during a plan year, the Special Enrollment Period rules for transitioning to standard coverage apply. If coverage wasn't transitioned properly and a claim was submitted after eligibility ended, the insurer will deny.

Appealing a Catastrophic Plan Denial

Catastrophic ACA plans are subject to the same appeal rights as other marketplace plans:

Internal appeal. You have the right to request an internal review of any denied claim within 180 days of receiving the denial. Submit a written appeal with supporting documentation — including your physician's explanation of the medical need for the service and any relevant billing codes.

External independent review. If the internal appeal fails, ACA-compliant plans must provide access to an independent external review organization. The external reviewer's decision is binding on the insurer. This is particularly valuable for coverage determinations involving preventive care coding, medical necessity, or network adequacy.

Marketplace appeal. If your catastrophic plan eligibility is being disputed — for example, the insurer claims your exemption wasn't valid — you can appeal directly to your state's ACA marketplace or Healthcare.gov.

Billing code corrections. For preventive care coding disputes, work with your provider's billing department to have the claim recoded correctly. A preventive service coded as diagnostic is a billing error, not a coverage decision.

The No Surprises Act and Catastrophic Plans

The No Surprises Act protects patients from unexpected out-of-network bills for emergency services and certain other situations. Even under a catastrophic plan, if you received emergency care at an out-of-network facility, the No Surprises Act limits your cost exposure to your in-network cost-sharing level. If an insurer is billing you above this threshold for emergency care, file a complaint with the No Surprises Act complaint portal at healthcarebillhelp.gov.

Fight Back With ClaimBack

ClaimBack helps catastrophic plan enrollees understand their coverage rights and build effective appeals against unjust denials. Start your appeal at https://claimback.app/appeal.

Related Reading

• How to Write an Insurance Appeal Letter
• Internal vs. External Insurance Appeal: What's the Difference
• Common Reasons Insurance Claims Are Denied