Dental billing sits at the intersection of two completely separate insurance systems — dental benefits and medical benefits — and the correct claim goes to a different place depending on what was done. Most billing errors in dental practices come from consistently routing to the wrong payer, or from CDT code selection that doesn’t reflect what’s documented in the chart.
The Three Billing Problems That Hit Dental Practices Hardest
1. Dental vs. Medical Billing Split
Certain procedures — sleep apnea oral appliances, TMJ treatment, oral surgery with general anesthesia, trauma-related procedures — cross over from dental benefits into medical insurance territory. Billing these to dental insurance when medical insurance should be primary generates an automatic denial. The reverse creates underpayment because medical reimbursement rates are typically higher for qualifying procedures.
The split also applies to diagnostic imaging. A panoramic X-ray taken for orthodontic treatment routes differently than one taken to evaluate a jaw fracture after trauma. The documentation determines the payer, and the payer determines the reimbursement.
2. CDT Code Accuracy and Documentation Match
CDT codes are updated annually. The 2024 and 2025 cycles both introduced new codes for implant-related procedures and digital impressions. Practices using the prior year’s code book — or relying on a biller who hasn’t updated their CDT training — submit claims with superseded codes that generate claim-level rejections rather than denials, meaning they never reach the payer at all.
3. Medicaid Pediatric Dental Documentation
Medicaid dental reimbursement for pediatric patients carries documentation requirements that differ by state and are enforced more strictly than commercial dental claims. Fluoride treatment claims require documentation of risk assessment. Sealant claims require documentation of tooth surface and clinical criteria. Missing the documentation doesn’t generate a denial — it generates a post-payment audit finding that requires repayment.
Dental Billing Denial Codes
| Denial | Common Cause | Fix |
|---|---|---|
| CO-4 | Incorrect CDT code or modifier for procedure documented | Verify CDT is current year; confirm code matches chart documentation |
| CO-96 | Non-covered service for this patient’s benefit plan | Verify dental plan coverage before treatment; document medical necessity for borderline procedures |
| CO-50 | Medical necessity not established for covered procedure | Clinical notes must support procedure — frequency limitations and necessity criteria documented |
| CO-22 | Coordination of benefits — dental vs medical coordination missed | Verify primary vs secondary payer before submission for crossover procedures |
What a Dedicated Dental Biller Handles
Claims submission for dental and medical payers, including crossover procedure routing. Eligibility verification before each appointment — dental benefits structure, frequency limitations, missing tooth clauses, waiting periods. Prior authorization tracking for major restorative and orthodontic cases. Denial management with CDT-specific appeal documentation. AR follow-up on aged claims with payer-specific escalation procedures.
Pricing
| Option | Cost |
|---|---|
| Full-time dedicated dental biller | $7/hr — $1,120/month |
| Part-time (20 hrs/week) | $7/hr — $700/month |
| Free dedicated RCM manager | Included |
| 4-week free pilot | No cost |
| Contract | None |
Frequently Asked Questions
Do your dental billers handle both dental and medical crossover claims?
Yes. Crossover procedure identification is part of the pre-submission eligibility workflow. Every claim with a potential medical billing component — oral surgery, sleep apnea appliances, TMJ, trauma — is reviewed for correct payer routing before submission.
What dental billing software do your billers work in?
Dentrix, Eaglesoft, Open Dental, Curve Dental, Carestream, and Dolphin. We adapt to your existing system — no migration required.
Book a free 15-minute call — or start the 4-week free pilot.
Related Resources
Best medical billing companies 2026 | What a dedicated medical biller actually costs | Staffing model for billing companies