What are EOB-rejected charges on a medical bill?
A charge your EOB says was denied, disallowed, or adjusted may need a closer look if the provider also bills you for it. An EOB is not a bill. Compare the EOB patient balance with the provider bill, then ask the insurer and provider who is responsible for any difference.
Paid audits are available only in certain care states. See the current active-state list.
Your EOB shows the billed charge, allowed amount, insurer payment, adjustments, and patient balance. A denial does not by itself mean you owe nothing; the reason for the denial, your plan terms, and any applicable protections matter.
Line up the EOB against the provider bill, date by date and code by code. If the provider is billing you for something the plan already wrote off, or for more than the EOB says is your responsibility, that gap is worth questioning before you pay.
The federal No Surprises Act (effective January 1, 2022) generally limits many out-of-network providers to your in-network cost-sharing amount for emergency care and for certain services delivered at in-network facilities, so a balance bill above that amount is often worth questioning.