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Co-Insurance

By , About.com Guide

Definition: Co-insurance is the percentage amount that one is required to pay. Usually used with health insurance plans, co-insurance is a way for the insurance company to share the costs with the policy holder and to keep premium costs down.

In health insurance a typical co-insurance split is 80/20. This means that the insurance company will pay 80% of the procedure and the insured is required to cover the other 20%. Usually the insured is required to pay their 20% portion at the time of the procedure but it depends on how the doctor or facility where care was given, would require payment.

Co-insurance vs. Co-pay: These terms are often confused. You now know that the co-insurance definition is a percentage of services. The co-pay or co-payment definition is a fixed amount required by the insured. This is what one usually pays to see the doctor for a check-up or minor concern. It is usually $20-$50 depending on the plan and is also usually required at the time of service.

Alternate Spellings: coinsurance
Examples:
Jane received a bill for her surgery. It was only 20% of the total cost of the procedure, which is her co-insurance requirement. Her insurance company paid the other 80% of the procedure.

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