CMS Updates Medicare ABN Form: What Healthcare Providers Need to Know

May 27, 2026

Quick Summary

CMS released an updated version of the Advance Beneficiary Notice of Non-Coverage (ABN), Form CMS-R-131, on March 13, 2026
Providers participating in fee-for-service Medicare must transition to the new ABN form by May 12, 2026
The updated form includes plain-language revisions and simplified beneficiary options
The underlying compliance requirements for ABN use have not changed
Providers should review workflows, retrain staff, and evaluate ABN practices to reduce reimbursement and compliance risk

Understanding the Updated ABN Form

The Centers for Medicare & Medicaid Services (CMS) recently released an updated version of the Advance Beneficiary Notice of Non-Coverage (ABN), Form CMS-R-131. Providers and suppliers participating in fee-for-service Medicare are required to begin using the updated form no later than May 12, 2026.

While the revisions are primarily intended to improve readability and patient understanding, the update also serves as an important reminder for healthcare organizations to reassess their current ABN practices and overall Medicare compliance strategies.

The ABN is a standardized notice issued to Medicare beneficiaries when a provider believes Medicare may deny payment for a particular item or service. By presenting a valid ABN before services are provided, providers preserve the ability to bill the patient directly if Medicare ultimately denies the claim.

Without a properly completed ABN, providers may be forced to absorb the financial loss associated with denied services.

When an ABN Should Be Used

ABNs are generally required when a provider has reason to believe Medicare may not cover a service that would otherwise typically qualify for coverage. This may include situations where services are considered not medically necessary, exceed frequency limitations, lack sufficient supporting documentation, or fall outside Medicare reimbursement guidelines.

Importantly, providers must understand that ABNs are not intended to function as blanket waivers or routine liability transfers. CMS continues to emphasize that ABNs should only be used when there is a genuine, service-specific reason to anticipate a denial.

ABNs also cannot be used to charge Medicare beneficiaries for services that are otherwise covered under Medicare rules. Providers operating concierge, hybrid, or membership-based models should pay close attention to these limitations, as improper use of ABNs in these arrangements remains an area of regulatory scrutiny.

Key Changes Included in the Updated Form

CMS made several revisions to improve beneficiary comprehension and simplify completion of the form.

The updated ABN now includes clearer, plain-language explanations designed to help beneficiaries better understand their financial responsibilities and available choices. CMS also revised the “Medicare Exclusions & Cost” table with simplified headers and formatting to improve readability.

In addition, the language describing beneficiary options has been updated for clarity. Patients may still choose to proceed with services and request Medicare billing, receive services and pay privately without Medicare billing, or decline the services altogether.

Although the form language has changed, the underlying compliance obligations remain the same.

Important Compliance Reminders

Providers must continue to ensure that ABNs are completed accurately and delivered in a timely manner. A valid ABN must clearly identify the services in question, explain why Medicare may deny coverage, and include a good-faith estimate of expected costs.

CMS also requires providers to review the ABN with the patient and answer questions before obtaining a signature. Simply presenting the form for signature without explanation may render the ABN invalid.

Timing is equally important. ABNs should be delivered far enough in advance of treatment to allow patients sufficient time to make an informed decision. Forms presented after services are rendered, or immediately before treatment without meaningful discussion, may fail to meet CMS requirements.

If an ABN is incomplete, untimely, or improperly executed, providers may remain financially responsible for denied claims.

What This Means for Healthcare Providers

The updated ABN form presents an opportunity for providers to evaluate whether existing workflows, staff training, and documentation practices align with current Medicare requirements. Organizations that already use ABNs should review their processes to ensure forms are being issued appropriately rather than as a routine administrative safeguard.

For organizations without a formal ABN process, this update highlights the importance of implementing compliant workflows to reduce reimbursement risk and strengthen Medicare compliance efforts.

Providers should also pay close attention to high-risk service lines where claim denials are more common and confirm that patient communication procedures remain consistent with CMS expectations.

How Patriot Group Can Help

Navigating Medicare compliance requirements can be complex, particularly as CMS continues to update forms, documentation expectations, and reimbursement guidance. Improper ABN use can expose providers to financial liability, repayment demands, and increased audit risk.

Patriot Group works with healthcare organizations to strengthen compliance programs, evaluate reimbursement processes, and implement effective documentation and workflow strategies. Our team can assist providers in reviewing ABN procedures, identifying compliance gaps, and improving operational consistency across Medicare billing practices.

If your organization has questions about ABN compliance, Medicare reimbursement, or related regulatory requirements, Patriot Group is available to help.