Reading Your EOB: A Plain-English Guide for Dentists

An Explanation of Benefits, or its electronic equivalent, an ERA, shows up after every processed claim. It's dense, full of codes and abbreviations, and easy to ignore. It's also the single best source of information about how a payer is actually treating your claims, if you know what to look for.

The numbers that matter

Every EOB shows the billed amount (what you charged), the allowed amount (the UCR or contracted amount the payer's fee schedule permits), the paid amount (what actually landed in your account), and the patient responsibility (deductible, coinsurance, or anything above the allowed fee).

Adjustment and denial codes

When the paid amount is less than you expected, the EOB includes a code explaining why: a contractual write-off (normal for in-network claims), an applied deductible, a frequency limit, an annual maximum reached, or a denial tied to the claim itself, like eligibility, missing documentation, or a missing tooth clause.

What to track over time

One EOB tells you about one claim. A month of them tells you about patterns. Are denials clustering around one payer? One procedure code? One kind of documentation gap? That pattern is exactly what your monthly reporting should surface, so you fix the root cause instead of re-fighting the same denial every month.