The amount of a non-covered service or deductible is indicated on the EOB as what?

The term "not allowed amount" on an Explanation of Benefits (EOB) refers to the portion of a service that is either not covered by the insurance plan or the maximum amount that the insurer will reimburse for that service. This designation serves to inform both the patient and the provider of the financial responsibilities associated with the service received. It signifies that the amount listed is not eligible for reimbursement under the terms of the insurance policy, clarifying what charges the patient will be responsible for, such as non-covered services or the deductible.

In this context, “non-covered charge” specifically identifies charges for services that the insurance plan does not pay at all, while the "claims payment" refers to the amount the insurer agrees to pay based on the claim submitted. The "coinsurance amount" relates to the percentage of covered services for which the patient is responsible after the deductible has been met. All these choices provide different aspects of payment responsibility, but the "not allowed amount" specifically highlights the portion of the charge that the insurance will not pay, making it the correct answer in this case.