7 Common Billing Hurdles Impacting Your Practice’s Revenue

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June 10, 2026
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Did you know that up to 45% of physician encounters are undercoded ? For a high-volume OB/GYN or Urgent Care practice, that means hundreds of thousands of dollars could be quietly slipping through the cracks every single year, often simply because a team is trying to navigate complex compliance rules cautiously. 

We recently worked with a multi-provider practice doing over $300,000 a month in revenue. They had a great team and solid operations. But when we ran a billing metric audit, we found they were missing nearly $20,000 a month due to a combination of cautious undercoding and write-offs slipping through without clear reason codes. By optimizing just those two internal processes, they recaptured over $200,000 in annualized revenue—without seeing a single extra patient. 

In this post, we break down the 7 common billing hurdles that impact high-volume practices every day, and provide a clear, actionable plan to empower your team and protect your bottom line.

1. Cautious Undercoding Due to Complex Rules

It is estimated that anywhere from 33% to 45% of encounters are undercoded. Undercoding means billing for a lower level of service than what was actually provided and justified by the documentation. Often, providers or coders are simply trying to avoid triggering an audit. But here is the reality: if you provide a level 4 service, document a level 4 service, but bill a level 3 to “stay safe,” that creates a significant revenue gap. For a practice doing $250k a month, chronic undercoding can easily account for $150,000 or more in missed revenue annually. It is crucial to support your team in coding to the highest level supported by your documentation. 

2. Front-End Eligibility Gaps 

Eligibility errors account for roughly 23% of all claim denials. This is a common front-end hurdle. If your front desk isn’t able to consistently verify active coverage, copays, and deductibles before the patient walks through the door, it sets the billing team up for challenges later. You see the patient, submit the claim, and two weeks later it comes back denied because their insurance lapsed. Now the team is chasing the patient for money, which is the hardest dollar to collect.

3. Navigating Modifiers 25 and 59

Modifiers are codes added to a claim to provide additional context. Modifier 25 indicates a significant, separately identifiable evaluation and management service by the same physician on the same day of the procedure or other service. Modifier 59 is used to identify procedures or services that are not normally reported together but are appropriate under the circumstances. These two modifiers are heavily audited in specialties like OB/GYN and Urgent Care. If they are used incorrectly due to complex guidelines, payers will deny the claim, or potentially demand refunds years later.

4. Missing Timely Filing Deadlines 

Every insurance company provides a specific window of time to submit a claim. Timely filing denials have increased a staggering 267% year-over-year. Once that window closes, the revenue opportunity is gone. There is no appeal and no recourse; it becomes a total write-off. Many practices struggle to track this metric until it has already become a significant hurdle. 

5. Untracked Write-Offs and Generic Adjustments 

Your billing team should have clear guidelines and require manager approval before writing off a balance. When a write-off does occur, it needs a specific reason code. If everything is just dumped into a generic “contractual adjustment” bucket, it becomes impossible to know if you are writing off bad debt, a timely filing error, or a front-desk hurdle. Establishing clear permissions is critical for financial oversight. 

6. “Statusing” Denials Instead of Managing Them

There is a massive difference between “working” a denial and just “statusing” it. Statusing means your biller calls the insurance company, hears “it’s in process,” types that into the notes, and sets it to review in 30 days. That is not truly managing a denial. Managing it means identifying the root cause, fixing the claim, and getting it paid. Up to 87% of claim denials are preventable or recoverable, but they require active management. 

7. Lacking an AR Accountability Engine

When a claim is denied because the front office didn’t check eligibility, does that feedback actually get back to the front office? When a claim is denied for coding, does it get flagged for the doctor? If your Accounts Receivable system doesn’t route the error back to the source, the team cannot learn from it, and the hurdle is doomed to repeat. You need an engine for AR accountability to support your staff. 


Action Plan 

Here is a 3-step action plan you can implement this week to empower your team: 

  1. Implement the “Verify Before Visit” Rule: Meet with your front desk team tomorrow morning and establish a supportive but firm rule that eligibility verification is required before a patient is seen. 
  2. Establish Write-Off Guidelines: Go into your billing software and adjust permissions so that standard billers require manager approval to process write-offs. 
  3. Audit Your Denials: Pull your top 10 denied claims from last month. Don’t just look at the status; identify the root cause and share that feedback with the appropriate department so they can improve. 

Want to see if you qualify for a billing metric audit? Check us out here: https://natrevmd.com 

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