Deductible, copay, coinsurance, and allowed amount explained

Allowed amount comes before patient responsibility

The billed charge is what the provider sent. The allowed amount is what the insurance plan recognizes for the service under the plan rules or contract.

When a provider is in network, the difference between the billed charge and the allowed amount may appear as an adjustment. The remaining patient responsibility is usually calculated from the allowed amount, not the original charge.

Three common ways a balance appears

A deductible balance means the plan recognized the service, but the member must pay covered costs until the deductible is met. A copay is a fixed amount for a visit or service. Coinsurance is a percentage of the allowed amount.

The same EOB can include more than one reason. For example, one line can apply to deductible while another line has coinsurance after the deductible is met.

• Deductible: covered amount assigned to the member before plan payment starts.
• Copay: fixed member amount for a covered service.
• Coinsurance: member percentage of the allowed amount.
• Adjustment: amount the provider may need to remove from the bill.

Ask for the exact field behind the balance

If the provider bill and EOB disagree, ask the insurer which EOB line created the patient responsibility and ask the provider whether that same responsibility has been posted.

This keeps the call focused on the plan calculation instead of a general debate about whether the bill feels too high.