Which term refers to a shared percentage of costs after a deductible is met?

The term that refers to a shared percentage of costs after a deductible is met is coinsurance. Coinsurance is a provision in health insurance plans that requires the insured to pay a certain percentage of the costs for covered services after the deductible has been satisfied. For example, if a health plan has a coinsurance provision of 20%, the insured would pay 20% of the remaining costs while the insurance company covers the 80%. This arrangement helps to share the financial responsibility between the insurer and the insured, often encouraging cost-conscious behaviors from the insured.

While other terms have specific meanings, they do not represent the concept of shared costs post-deductible. Subrogation, for instance, refers to the right of an insurer to pursue a third party responsible for a loss after compensating the insured. Exclusion pertains to conditions or situations that are not covered by a policy, and reinsurance involves an insurance company transferring a portion of risk to another insurer. Each of these terms represents different aspects of insurance but does not encompass the shared cost structure described in the question.