Which of the following describes a feature where the policyholder is responsible for a certain portion of claims in some health insurance policies?

Coinsurance is a feature in some health insurance policies where the policyholder is responsible for a certain percentage of the costs associated with covered health care services after the deductible has been met. For example, if a health insurance plan has a coinsurance rate of 20%, the insurance company will cover 80% of the eligible medical expenses, while the policyholder is responsible for the remaining 20%. This arrangement incentivizes policyholders to take an active role in their health care decisions, as there is a shared financial responsibility for health care costs.

In contrast, a deductible is the amount that a policyholder must pay out-of-pocket before the insurance begins to cover expenses. Exclusions refer to specific conditions or treatments that are not covered by a policy. A co-payment is a fixed amount the insured pays for a specific service (like a doctor's visit or prescription) at the time of service. Understanding coinsurance helps policyholders anticipate their potential out-of-pocket costs and budget accordingly for health care expenses.