Payer Audits: Triggers and Responses

A payer audit typically begins with a request from the payer for medical records and other documentation to support a specific claim or set of claims. The payer will then review the documentation to determine whether the claim was properly coded and whether the services provided were medically necessary. If the payer determines that the claim was improper, it may request a recoupment of the amount paid. For example, if a payer audits a claim for a patient who received outpatient physical therapy services, it may request documentation to support the medical necessity of the services, such as a physician's order and progress notes from the therapist. If the documentation is insufficient, the payer may deny the claim and request a recoupment of the amount paid. In my experience, one of the most common reasons for payer audits is the use of incorrect or outdated codes, such as the use of code 99213 for an office visit when code 99214 is more appropriate.

Payer audits can be triggered by a variety of factors, including coding errors, insufficient documentation, and unusual billing patterns. For example, if a provider is billing for a high volume of services that are not typically provided in an outpatient setting, the payer may flag the claims for review. Similarly, if a provider is using a code that is not recognized by the payer, the claim may be denied and the provider may be subject to an audit. To minimize the risk of an audit, providers should ensure that their coding and billing practices are accurate and compliant with regulations, and that they have sufficient documentation to support their claims.

There are several types of payer audits, including RAC audits, Medicare Administrative Contractor (MAC) audits, and commercial payer audits. RAC audits are conducted by Recovery Audit Contractors, which are private companies that are hired by the Centers for Medicare and Medicaid Services (CMS) to review claims and identify improper payments. MAC audits are conducted by Medicare Administrative Contractors, which are responsible for processing Medicare claims and ensuring that they are properly paid. Commercial payer audits are conducted by private insurance companies, which may have their own audit processes and procedures. For example, a commercial payer may conduct an audit to determine whether a provider is complying with its billing guidelines and policies. In my experience, RAC audits are often the most challenging to respond to, as they require a high level of documentation and can result in significant recoupments if the claims are denied.

Regardless of the type of audit, the key to responding effectively is to provide detailed documentation to support the claims in question. This may include medical records, billing records, and other documentation that demonstrates the medical necessity of the services provided. For example, if a provider is audited for a claim for outpatient surgery, it may need to provide documentation such as operative reports, discharge summaries, and progress notes to support the claim. By providing thorough and accurate documentation, providers can minimize the risk of recoupment and ensure that their claims are paid properly.

To prepare for payer audits, providers should ensure that their coding and billing practices are accurate and compliant with regulations. This may involve conducting regular audits of their own billing practices, as well as providing training and education to their staff on proper coding and billing procedures. Providers should also ensure that they have sufficient documentation to support their claims, including medical records and billing records. For example, a provider may want to implement a system for tracking and managing medical records, such as an electronic health record (EHR) system, to ensure that all necessary documentation is readily available in the event of an audit. By taking these steps, providers can minimize the risk of an audit and ensure that they are prepared to respond effectively if an audit is conducted.