Medical billing is a complex process because it includes paying attention to various codes, modifiers, and specific billing guidelines. It becomes more challenging when professionals have to differentiate between two modifiers that resemble each other with a minute difference.
The same is the case with modifiers 76 and 77. Most professionals mistakenly bill 76 instead of modifier 77, which creates an issue in reimbursements. This eventually disrupts the financial flow of the practice. So, we have decided to present a thorough guide on billing with modifier 77. Find the correct ways to bill this modifier!
Modifier 77 – Description
Modifier 77 in medical billing indicates a repeat procedure or service performed by a different physician or provider.
It helps clarify that the same procedure had to be repeated, but not by the original physician; instead, by another qualified provider, usually due to medical necessity or unexpected circumstances.
Modifier 77 – Usage Examples
Do you want to know how to use this modifier correctly? Before we go on to the usage recommendations, here are some practical examples.
Repetition of Fetal Ultrasound
Suppose a gynecologist performs a prenatal ultrasound on a pregnant woman, but the fetal position (face down) makes it challenging for her to see the heart chambers well. So she forwards the case to a maternal-fetal medicine (MFM) specialist for another ultrasound of the same patient on the same day. In this situation, the MFM specialist can bill her analysis with modifier 77 to avoid claim duplication.
Repeat Service by an Expert Physician
Suppose a physician has performed an X-ray on a patient. While he was reading and analyzing the reports, he noticed some unusual findings, so he decided to consult a senior physician for an expert opinion. The senior physician interprets and analyzes the X-ray reports. Hence, the senior physician can apply modifier 77 to the professional component of this service.
Accurate Usage Guidelines for Modifier 77
If you do not comply with the billing rules of this modifier, you may have to face claim denials, financial penalties, or even legal repercussions for unjustifiable use of the modifier. Hence, let’s understand the accurate and inappropriate uses of this modifier.
When To Use Modifier 77
First of all, it is important to keep in mind that this modifier is only appended by the second physician when repeating the service. Furthermore, apply this modifier to the professional component of the services. For instance, if an initial provider is interpreting and reporting the X-ray or EKG results, he may require an expert opinion on the reports. In this case, the physician providing a second interpretation of the report can apply this modifier.
You must also ensure that the National Provider Identifier (NPI) numbers of the first and second physicians are different.
When NOT to Use Modifier 77
You must avoid appending this modifier if:
- The service is repeated by the same physician.
- A different physician is providing the same services but on a different date.
- The code represents an Evaluation and Management (E/M) service.
- Billing for multiple services that are considered bundled.
Prove the Medical Necessity
Proving the medical necessity of the repeat procedure and the reason for appending modifier 77 is essential for billing and reimbursement. If you fail to prove the necessity of your repeated services, you will face denials.
On the other hand, there are various other compliance rules set by insurance payers. So, along with providing your services, you have to comply with their requirements for billing with this modifier.
Final Thoughts on Modifier 77
As we conclude this blog, let’s summarize the key points we’ve covered. We have examined modifier 77 extensively and identified specific situations where it should be applied, such as when a real-time fetal ultrasound is reviewed by an MFM specialist for detailed evaluation or when another physician performs the professional component of an X-ray again for expert opinion.
Additionally, we emphasized the necessity of maintaining accurate documentation to demonstrate medical necessity to the insurer. To enhance understanding of the modifier, this blog distinguishes between appropriate and inappropriate usages of the modifier.
If any uncertainties remain, you can reach out to NeuraBill for professional medical billing & coding services.
FAQs
What is the difference between modifier 77 and 76?
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Does Medicare accept modifier 77?
Yes, Medicare accepts this modifier. But with conditions! Such as the diagnostic imaging ordered by another physician, with evidence of unclear findings or a changed diagnosis. Also, it does not accept this modifier for routine procedures or E/M codes.
Can we use modifier 77 with CPT code 99080?
No, you should not append this modifier to CPT code 99080 because both refer to different types of services. 77 is specifically intended to be used for the repetition of a procedure or service. In contrast, the CPT code refers to the preparation of special reports that contain more information than the standard reporting format. So, since both have different intents, payers consider the combination to be incorrect.
Can modifier 77 be used on diagnostic procedures?
Yes, you can apply this modifier to the professional component of diagnostic procedures. If X-rays or echocardiograms were repeated due to medical necessity, the second provider can bill their interpretation and reporting with the 77 modifier.
