Explanation of Benefits (EOB)

An Explanation of Benefits is a statement issued by a dental insurance company after a claim has been adjudicated, providing a detailed account of how the claim was processed. The EOB is sent to both the dental provider and the patient, though the information may be presented differently for each audience. For the provider, the EOB includes the submitted charges, the allowed amount for each procedure, the insurance payment amount, contractual adjustments, any applicable deductible or coinsurance amounts, denial reason codes for unpaid services, and the calculated patient responsibility. The EOB serves as the payer's official communication of the claim determination.

It is important to understand that an EOB is not a bill. It is an explanation of the insurance company's payment decision. The patient receives the EOB as notification of what the insurance covered and what their financial responsibility is, but the actual bill for any patient balance comes from the dental provider. EOBs may be delivered in paper form via mail or electronically through the carrier's member portal. For providers, EOBs arrive as paper documents for non-electronic payers or as the electronic equivalent known as an Electronic Remittance Advice for payers with electronic connectivity.

For dental billing teams, the EOB is the source document for payment posting and account reconciliation. Accurate interpretation of every line on the EOB ensures that insurance payments are posted to the correct accounts, contractual adjustments are applied properly, and patient balances reflect only the legitimate cost-sharing amounts. Billing staff should be trained to identify discrepancies between expected and actual payments, as EOBs sometimes reveal underpayments, incorrect adjustment amounts, or improperly applied plan provisions. When a discrepancy is identified, the EOB data provides the basis for filing an appeal or requesting a claim review from the carrier.