If you are new to medical billing, you may have come across the term Advance Beneficiary Notice (ABN). But are you aware of its concept and application in medical billing? Allow us to simplify things for you!
An ABN in medical billing is a written notice given by a healthcare provider to original Medicare Part A and B patients before providing services. It is an important financial document because, if Medicare rejects the claim, the provider can bill the patient as long as there is a legitimate patient signature on it.
An Advance Beneficiary Notice of Non-coverage is issued when the provider expects Medicare to deny the claim, usually because the healthcare service does not meet Medicare’s medical necessity criteria, exceeds a frequency limit, or falls outside coverage rules for that diagnosis.
The form CMS-R-131 (or ABN) allows the patient to agree to pay for those services.
But is that all that you need to know to master Medicare billing? We don’t think so. Continue reading as we deep dive into the importance, components, modifiers, and process of a Medicare Advance Beneficiary Notice.
Importance of ABN in Medical Billing
An ABN protects the practice’s revenue by billing the patient legally rather than completely writing off the service when Medicare refuses to pay. Simply put, this document facilitates communication between the patient and the provider. It informs the patient about the possibility of financial liability.
Moreover, it benefits the healthcare practice both financially and in compliance. However, the claim must contain proper modifiers, such as GA, GY, or GZ, to inform Medicare that the notice of non-coverage was issued to the patient. It also allows Medicare to expedite claim adjudication.
Additionally, one of the first things an auditor looks for when examining a practice’s handling of non-covered services is a consistent ABN process.
Key Components of an ABN Form
Medicare reviews the information provided in the ABN form. So, if Medicare’s regulations are not followed, you could lose out on your reimbursement. As a result, each notice of non-coverage must have some specified details, and omitting any one of them could render the form invalid:
- Provider’s information (the provider’s or supplier’s name, address, and phone number).
- Patient identification (the beneficiary’s name, address, and phone number).
- The description of the service or item that might not be covered.
- Reason(s) for the possible denial, such as “not medically necessary” or “exceeds frequency limit.”
- Estimated cost of the service or supply.
- The patient or their representative’s signature and date the form was signed.
Which Medicare Services Require an ABN?
Medicare Advance Beneficiary Notice does not apply to every service. It is only issued to the patient when Medicare typically pays for the service, but the provider believes Medicare could refuse to pay. This typically occurs when:
- For the diagnosis on the claim, the services are neither reasonable nor medically required.
- Therapy or diagnostic services that, for a specific time period, surpass Medicare’s frequency restrictions.
- Treatment procedure or product involves investigative or experimental methods.
- Custodial care is rendered that does not call for medical expertise.
Note that the ABN is not for Medicare Advantage or Part D plans, which have their own notice requirements and services that are excluded from Medicare, like cosmetic surgery or routine hearing aids, since those typically do not require a coverage determination.
Advance Beneficiary Notice (ABN) Process
Follow the step-by-step approach for issuing an ABN in medical billing.
- The first step is to assess the likelihood that a certain service claim will be denied. This should be done before the visit based on coverage policy, frequency limits, or medical necessity.
- Notify the patient by issuing an Advance Beneficiary Notice of Non-coverage ahead of time. The patient must receive this notice before the service begins.
- The patient will then make an informed decision after reading the notice and making any necessary inquiries. He may choose one of the three alternatives on the form:
- Receive the service and bill Medicare
- Receive the service and don’t bill Medicare
- Decline the service
- Ensure that the form is signed and dated by the patient or their designated representative. Both the patient and the office retain copies.
- Append the accurate modifier to the claim when it is submitted to Medicare.
- The patient’s financial obligation is recorded and payable if Medicare rejects the claim as anticipated.
ABN Modifiers for Medicare
The ABN status determines which modifier to append to the claim. Appending the wrong modifier can trigger an incorrect denial or an audit request.
Modifier GA
It is applied when a provider issues and obtains a signed ABN from the patient for a service that is expected to be denied. Since the patient was notified in advance, this modifier instructs Medicare to flag an automated denial so that the patient could be held accountable for the medical costs.
Modifier GX
It is used for a voluntary advance notice that is given to the patient for a service that is legally not covered by Medicare, but the provider decided to inform the patient nevertheless.
Modifier GY
This modifier is used when a service or item is statutorily excluded from Medicare coverage, indicating that advance notice was ever needed. In this case too, the patient is responsible for the expenses.
Modifier GZ
The GZ modifier is appended to the claim line when a provider does not have a signed ABN and expects a medical necessity denial. GZ claims are immediately rejected, and the provider is typically unable to bill the patient for that service.
ABN vs ACN in Medical Billing
It is unclear why people get confused between ABN and ACN when both mean completely different things. An Advance Beneficiary Notice is a Medicare-only document and applies to original Medicare Parts A and B.
On the other hand, ACN stands for Accountable Care Network. It is an integrated group of physicians, hospitals, and other qualified healthcare providers collaborating to deliver coordinated, value-based care to a specific patient population while managing costs.
Final Thoughts
An ABN puts potential financial responsibility in writing, protecting the practice from unnecessary write-offs in case Medicare denies the claim.
If you want to avoid complications with advance notices in medical billing, you must follow the step-by-step approach we have discussed above, along with appending the accurate modifiers.
Furthermore, our expert medical billing and coding services are there to streamline the process if ABN issues are causing write-offs or denials for your practice.
