How Does Coinsurance Work With a Deductible?

Understanding how key concepts like deductibles and coinsurance function is important for managing healthcare expenses. This article clarifies these terms and explains how they interact within a health insurance plan.

What a Deductible Means

A deductible represents the amount an insured individual must pay for covered healthcare services before their insurance plan begins to contribute financially. For instance, if a plan has a $2,000 deductible, the individual is responsible for the initial $2,000 of eligible medical costs. This amount typically resets at the start of each new policy year.

Until this predetermined sum is paid, the insurance company will not cover costs for most services. However, some preventive care services are often covered by insurance even before the deductible is met.

What Coinsurance Means

Coinsurance refers to the percentage of costs for covered healthcare services that an individual pays after they have met their deductible. The insurance company then pays the remaining percentage of these costs. For example, in an 80/20 coinsurance plan, the insurer covers 80% of the cost, while the individual pays the remaining 20%.

This cost-sharing mechanism becomes active once the deductible has been fully satisfied. Before reaching the deductible, the individual typically pays 100% of the costs.

How Deductibles and Coinsurance Work Together

Deductibles and coinsurance operate in sequence to determine who pays for healthcare services. The individual is responsible for paying all covered medical expenses out-of-pocket until their annual deductible amount is reached. Once that deductible threshold is satisfied, coinsurance then begins to apply.

Consider a scenario where an individual has a health plan with a $2,500 deductible and 20% coinsurance. If they incur $10,000 in covered medical expenses, they would first pay the entire $2,500 deductible. After meeting the deductible, $7,500 of the total bill remains ($10,000 – $2,500). At this point, the coinsurance percentage comes into effect.

The individual would then be responsible for 20% of the remaining $7,500, which amounts to $1,500. The insurance company would cover the other 80%, or $6,000, of that remaining balance. In this example, the individual’s total out-of-pocket payment for this medical event would be $4,000 ($2,500 deductible + $1,500 coinsurance), while the insurer pays $6,000.

The Role of Your Out-of-Pocket Maximum

The out-of-pocket maximum serves as a protective cap on the total amount an individual must pay for covered medical expenses within a given plan year. This limit includes payments made towards the deductible and coinsurance. Once this predetermined maximum is reached, the health insurance plan will cover 100% of all additional covered healthcare costs for the remainder of that year.

For instance, if a plan has a $5,000 out-of-pocket maximum, once an individual’s combined payments for deductibles and coinsurance reach $5,000, their financial responsibility for covered services ceases. The out-of-pocket maximum resets annually.