What to Do When You Receive Underpayments for ABA Billing
Underpayments occur when a health insurance fails to reimburse a provider the full requested/contracted amount. This failure can result in long-term financial problems for ABA agencies. Therefore, ABA practices must develop a clear understanding of underpayments and how to handle them.
Here’s what to do when you receive underpayments for ABA services.
Know Reasons Underpayments Occur
Insurers are always looking for a reason to deny claims. Careless billing makes it easy for the Insurance to spot errors and either deny or make a partial payment. As such, ABA agencies must be wary of common underpayment causes:
● Missing information: Billers sometimes leave out critical information that supports the claims. Early in the scheduling process, note what documentation is needed to receive full reimbursement.
● Insurers miscalculating payment: Insurers may come to different monetary conclusions when reviewing a therapy service. Maintain detailed notes regarding the sessions and also segregate billable vs. non-billable hours.
● Overbilling: Ensure your billers are using appropriate codes/modifiers to bill for services. Failing to accurately record provided services and translate them into codes with correct modifiers may result in overbilling. Hold internal audits to verify your agency’s procedural consistency.
● Contract misinterpretations: Confusing contract language in healthcare legal agreements can lead to differing interpretations. During contract disagreements, legal intermediaries may be the only viable solution.
Maintain Consistent Standards
Underpayments happen mainly for two reasons: practice mistakes and insurer mistakes. To prevent the former, you must have clearly defined standards that your staff consistently uphold.
Keep a clear record of sessions with all required details. Your therapists must know what items are integral to the session notes. Once the therapist has completed a note set, assess the notes to find the appropriate CPT codes. Ensure that your workers are familiar with CPT standards and what variables influence the usage of correct modifiers.
Review your contracts with insurers to clearly understand how much they have agreed to pay for each service. Finally, match the codes you have provided with the agreed-upon compensation amount.
Contact Insurers When Appropriate
You may need to contact an insurance agency to determine prices. Medicaid has online resources that makes this process simple. Unfortunately, many private insurers are less well equipped. Have knowledgeable contacts at these insurance companies to streamline the information-gathering process.
File an Underpayment Claim
While most underpayments can be filed for reprocessing, practices rarely do so. Many health providers struggle to fix past errors while sending current bills. However, a well-trained billing team can recoup significant funds through either reprocessing or a quality appeal.
Insurers may describe why they provided less than the requested amount. In such cases, review their report to identify and handle the issue. Contact the insurance if they’ve failed to describe the underpayment reason and a further review shows an accurate claim.
Use Legal Support
Occasionally, insurers will refuse to fully compensate an appropriately priced claim. In this scenario, legal options may be necessary.
Using legal means to protect your finances is expensive and time-consuming. Plutus Health offers billing and coding services that protect your practice from underpayments. Our experienced team accurately codes and bills, then follows up on late payments. Contact us today to learn how we’ll improve your revenue cycle.
Key Takeaways
1. Understand the reasons underpayments commonly occur.
2. Maintain consistent billing and coding standards.
3. Contact insurers to gain agency-specific information.
4. File an underpayment claim once you’ve determined the underpayment was unwarranted.
5. Use legal aid when appropriate.
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FAQs


ABA providers are grappling with high staff turnover (up to 65%), rising burnout, administrative overload, and stagnant reimbursement rates. These challenges directly impact care continuity, clinical outcomes, and operational performance.


Operational inefficiency costs ABA teams up to 10 hours per staff member per week, contributing to burnout, denied claims, and longer accounts receivable (A/R) cycles. These inefficiencies ultimately result in reduced revenue and patient dissatisfaction.


Burnout leads to costly turnover, lower client retention, and decreased productivity. Recruiting and replacing a BCBA or RBT can cost up to $5,000 per hire, plus months of lost revenue and disruption to morale.


High-performing ABA organizations invest in clear career pathways for BCBAs and RBTs, align compensation with market benchmarks, and foster peer-led mentorship, flexible schedules, and wellness programs.


Automation tools like Plutus Health's Zeus streamline eligibility verification, denial management, and billing, reducing manual workloads by 5–10 hours weekly per clinician and improving clean claim rates by 95%.


Outsourcing revenue cycle management can improve collections, reduce denials by up to 30%, and free clinicians from billing-related admin tasks, resulting in better client care and financial outcomes.


One $200 million ABA network partnered with Plutus Health to automate eligibility and accounts receivable (A/R) processes. The result: $2M reduction in legacy A/R and a 97% Net Collection Rate.


By improving operational efficiency, investing in technology, and ensuring workforce stability, ABA leaders can align outcomes with reimbursement. Plutus Health supports this transition with scalable RCM and automation strategies.
FAQs


ABA therapy billing is the process of submitting claims to insurance or Medicaid for Applied Behavior Analysis services provided to individuals with autism or developmental disorders. It includes using correct CPT codes, proper documentation, and adherence to payer-specific policies.


Common CPT codes for ABA therapy in 2025 include:
- 97151 – Assessment and treatment planning
- 97153 – Direct therapy with the patient
- 97155 – Supervision and modification of behavior plan
- 97156 – Family adaptive training
- Always check with payers for any annual changes.


To bill Medicaid for ABA services, providers must ensure credentialing is complete, services are pre-authorized, and claims use the correct codes and modifiers. Medicaid requirements vary by state, so always follow state-specific billing rules.


Common ABA billing mistakes include:
- Incorrect or missing CPT codesplan
- Lack of documentation or treatment
- Uncredentialed providers rendering services
- Submitting duplicate or late claims


Without proper credentialing, providers can’t get reimbursed. Insurance and Medicaid require that BCBAs, RBTs, and organizations are credentialed and contracted. Delays in credentialing often cause revenue losses and claim rejections.
FAQs


CMS proposes a 2.4% increase in Medicare ASC payment rates, contingent on meeting ASCQR quality reporting requirements. Plutus Health helps ASCs meet these compliance benchmarks by integrating quality reporting data into RCM workflows, ensuring eligibility for full payment updates.


The ASC Covered Procedures List will expand by 547 procedures, including cardiology, spine, and vascular surgeries. Plutus Health supports expansion into new service lines by customizing RCM processes for high-acuity procedures, minimizing claim denials during the transition.


Site-neutrality narrows the payment gap with hospital outpatient departments, enhancing ASCs' cost-efficiency appeal. Plutus Health helps leverage this advantage in payer negotiations by providing performance dashboards and cost-justification analytics to secure stronger reimbursement terms.


Complex procedures increase denial risk and slow cash flow. Plutus Health's automation-first RCM model delivers 95%+ clean claim rates, reduces A/R days, and safeguards margins, even as your case mix becomes more complex.