Endodontic Insurance Verification

Why endodontic verification needs special handling

Endodontic coverage in 2026 is more structured by tooth position than most other major procedure categories. Anterior root canals (D3310) are typically covered at the same percentage as basic procedures (often 80%). Bicuspid root canals (D3320) sit between basic and major, sometimes 80%, sometimes 50% depending on plan. Molar root canals (D3330) are almost universally classified as major procedures at 50% — and increasingly require pre-authorization with supporting documentation.

The molar pre-authorization trend matters significantly. In 2026, most major carriers require pre-auth on molar endodontics, especially on patients with prior molar endo history or perio involvement. Skipping pre-auth on a $1,800 molar root canal that turns out to require it results in automatic denial that is hard to overturn after the work is complete.

Retreatment (D3346, D3347, D3348) is the third complexity layer. Most carriers require a waiting period between initial endodontic treatment and retreatment — often 2-3 years. Verifying whether the patient's prior endo on the affected tooth falls inside or outside the retreatment window determines whether the retreatment will be covered at all.

What we verify on every endodontic case

• Endodontic coverage by tooth position (anterior, bicuspid, molar)
• Coverage percentages for each position class on the patient's specific plan
• Pre-authorization requirements for molar endodontics
• Pre-auth documentation requirements (radiographs, narrative format)
• Retreatment coverage and waiting period rules
• Apicoectomy (D3410, D3421, D3425, D3426) coverage and pre-auth
• Pulpotomy (D3220) coverage for primary teeth (pediatric crossover)
• Coverage for endo with crown buildup, post and core, and follow-up restorative
• Frequency limits — typically once per tooth lifetime, with retreatment exceptions
• Annual maximum remaining and impact on combined endo + crown treatment plans
• Missing tooth clause interaction (patient had extraction recommended but chose endo)
• Coordination of benefits for dual-coverage patients with major endo work

Every endodontic case touches multiple coverage rules simultaneously — the verification report documents each explicitly so the case can be quoted accurately the first time.

Common endodontic claim denials

Missing molar pre-authorization is the largest single denial pattern in 2026. Practice proceeds with a molar root canal believing the carrier doesn't require pre-auth or that prior verbal confirmation suffices, and the carrier denies on lack of formal pre-auth documentation.

Tooth-position misclassification is second. The carrier pays only the bicuspid rate on a molar root canal, or the anterior rate on a bicuspid, because of CDT coding interpretation. Verification catches this in advance by confirming exactly how the carrier classifies each tooth.

Retreatment window denials are third. Practice attempts retreatment on a tooth that had endodontic therapy 18 months ago, falling inside the carrier's 24-month retreatment waiting period. The retreatment claim is denied entirely.

Annual maximum denials are the fourth. Patient already used most of the annual max on prior major work, and the endo + crown buildup + crown sequence exceeds remaining benefits. Verifying remaining annual max before quoting prevents the patient billing surprise.

Choosing the right service for endodontic work

Our Full Breakdown verification is the appropriate service for endodontic cases — it captures the tooth-position-specific coverage tiers, molar pre-authorization workflow, retreatment rules, and the combined endo + crown buildup + crown coverage analysis these cases require. Endodontists and general practices doing significant molar endo volume routinely use our dedicated remote employee model for consistency.

For complete service comparison and pricing, see our pricing page.