If your office takes Denti-Cal, you know the frustration: clean-looking claims come back denied, authorizations stall, and months-old balances pile up. After 7+ years working Denti-Cal billing, these are the five denial reasons we see most — and what to do about each one.
Missing Treatment Authorization Request (TAR)
A lot of procedures need prior authorization. No approved TAR, no payment — denied outright.
Fix: Check authorization requirements before treatment, submit TARs with complete documentation, and track them until they’re approved.
Eligibility wasn’t verified
Denti-Cal eligibility can change month to month.
Fix: Verify eligibility before every appointment, not just at the first visit.
Wrong or outdated CDT codes
Coding errors are one of the fastest ways to get a denial.
Fix: Keep coding current and make sure the clinical notes support the code billed.
Missing documentation
Denti-Cal wants proof — x-rays, narratives, perio charting.
Fix: Attach what’s required the first time instead of waiting for the denial letter.
Nobody worked the denial
This is the biggest one. Denials sit because the front desk doesn’t have time to fight them — but most are fixable and payable.
Fix: Work every denial within days. Correct it, appeal it, resubmit it.
Denials aren’t just lost revenue — they’re revenue you already earned. If your team doesn’t have time to fight every claim, that’s exactly what we do.
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