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How to Manage Billing for Ancillary Services (Lab and Imaging)

Handle the unique billing requirements for in-house lab, imaging, and other ancillary services.

Handle the unique billing requirements for in-house lab, imaging, and other ancillary services.

Handle the unique billing requirements for in-house lab, imaging, and other ancillary services.

Managing billing for ancillary services like lab and imaging is not for the faint-hearted. These services come with unique requirements that can throw a wrench in your revenue cycle if not handled meticulously. But with the right approach, the revenue potential is significant.

Understand the Codes and Modifiers

Billing for ancillary services starts with understanding the right CPT and HCPCS codes. Lab and imaging services often have specific codes that differentiate them from standard office visits. For instance, a basic metabolic panel might be coded as CPT 80048, while an X-ray of the chest could use CPT 71045.

Modifiers are equally important. They provide additional information about the service provided. Take Modifier 26, for example—it indicates the professional component of a diagnostic test. If your practice does not own the equipment and only interprets the results, you’ll need it.

Wrong codes or missing modifiers lead to denials. Denials mean delayed payments (or no payments at all), which is frustrating for any practice with a robust ancillary services division.

Know Your Payer Requirements

Payer requirements can feel like a labyrinth. Each has its rules for pre-authorizations, medical necessity, and documentation. UnitedHealthcare might demand pre-authorization for a certain MRI, while Cigna might not. The trick is to know the specifics—or pay for it with time wasted on hold, fighting for a retroactive authorization.

When setting up or expanding ancillary services, get your team used to these quirks. Develop payer-specific checklists. And don't fall into the trap of assuming requirements are static. They change—often without notice. Stay proactive by subscribing to payer newsletters or having regular check-ins with provider representatives.

Tackle Pre-authorization Proactively

Pre-authorizations are the bane of any billing team. Yet they’re necessary for many lab and imaging services. The lack of a pre-authorization is a common denial reason—one that can be avoided with a proactive approach.

Set up a system to track which services need authorization. Use your practice management software—not sticky notes. If a patient needs an MRI every six months, have their authorization process begin well before their visit. Automated reminders can prevent last-minute scrambles.

Don’t Underestimate Documentation

Documentation errors are another denial culprit. Payers require specific information to justify the service. Documentation should not only include the procedure details but also tie back to the patient's medical necessity. For example, an MRI might be needed to diagnose a potential herniated disc—your documentation should make this clear.

Billing teams must liaise closely with medical staff to ensure documentation is precise and comprehensive. If doctors aren’t providing the necessary details, schedule training sessions to bridge the gap. It's not just about getting paid—it's about compliance as well.

Master the Art of Appeals

Despite your best efforts, denials happen. When they do, appealing effectively is a must. This means understanding each payer’s appeal process, which can differ just as much as their pre-authorization requirements.

The appeal letter is your chance to advocate for your practice’s revenue. Attach relevant medical records, correct codes, and a well-reasoned argument. Many billers make the mistake of assuming a simple re-submission will suffice. It won't. Treat appeals with the same care as the initial claim.

Streamline Billing Workflows

Efficiency in billing workflows can be a game-changer. Ancillary services often require coordination between different departments. Without a streamlined process, billing can become a bottleneck.

Consider a centralized billing team that's skilled in both lab and imaging claims. This team can focus on fine-tuning processes, keeping up with payer policies, and managing denials. It’s about working smarter—not harder.

Use technology to your advantage. Many billing software solutions offer features specifically for ancillary services, such as automated code updates and integrated denial management tools. Leverage these to reduce manual errors and free up your team’s bandwidth for complex cases.

Audit Regularly and Learn

Audits are not just about compliance—they’re learning opportunities. Regularly review a sample of claims to identify common errors and areas for improvement. Look for patterns—is it always Modifier 59 that trips you up? Do imaging claims have a higher denial rate?

Use these insights to refine your processes. Share findings with the team, and create an environment where learning from mistakes is encouraged. This keeps your practice nimble and able to adapt in an industry where change is the only constant.

Keep an Eye on Industry Trends

While focusing on payers and processes, don't lose sight of the broader industry trends. The move towards value-based care, for example, impacts billing for ancillary services. As payers increasingly link reimbursement to outcomes, the way services are billed and documented might change.

Stay informed through industry publications, webinars, and professional groups. Being ahead of trends can offer a competitive advantage and prevent being caught off guard by shifts in payer behaviors.

Managing billing for ancillary services is complex. But with attention to detail and proactive management, it can be mastered. The practices that succeed are those that adapt, learn, and stay one step ahead of payer requirements.

Upgrade to Arrow for more features

OpenRCM answers your billing questions. Arrow puts your A/R on autopilot, supercharging your billing team to do more.

  • Automate A/R follow-up

  • Resolve denials faster

  • Track real-time revenue

  • Collaborate with your team in one place

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Try OpenRCM for free

Upgrade to Arrow for more features

OpenRCM answers your billing questions. Arrow puts your A/R on autopilot, supercharging your billing team to do more.

  • Automate A/R follow-up

  • Resolve denials faster

  • Track real-time revenue

  • Collaborate with your team in one place

Arrow-CoreExchange
Arrow-CoreExchange

Try OpenRCM for free

Upgrade to Arrow for more features

OpenRCM answers your billing questions. Arrow puts your A/R on autopilot, supercharging your billing team to do more.

  • Automate A/R follow-up

  • Resolve denials faster

  • Track real-time revenue

  • Collaborate with your team in one place

Arrow-CoreExchange
Arrow-CoreExchange

Upgrade to Arrow for more features

OpenRCM answers your billing questions. Arrow puts your A/R on autopilot, supercharging your billing team to do more.

  • Automate A/R follow-up

  • Resolve denials faster

  • Track real-time revenue

  • Collaborate with your team in one place

Arrow-CoreExchange
Arrow-CoreExchange