What is the Coinsurance?

The coinsurance is the percentage that you pay of your medical bills, after fulfilling your deductible amount. For example, if the coinsurance percentage is 80% and the cost of your x-ray was $1,000, the insurance would cover $800 of the bill, and you pay the remaining $200. This charge is in addition to your copay. Coinsurance is paid until the out-of-pocket maximum is reached.