Which of the following terms describes this payment?

Coinsurance refers to the percentage of costs that the insured must pay after the deductible has been met. It is a cost-sharing arrangement between the insurer and the insured, meaning it only applies once the deductible has been satisfied, making it an incorrect choice for a payment described solely as a deductible.

A copayment is a fixed amount the insured pays for specific services, such as a doctor's visit or prescription. Unlike a deductible, which is a predetermined amount paid before coverage kicks in, a copayment is due at the time of service, and therefore does not accurately describe the payment in question.

Fee-for-service is a payment model where providers are paid for each service rendered. While it relates to how healthcare services are billed, it does not specifically define the initial out-of-pocket costs that must be met under an insurance plan, thus making it an incorrect choice.

A premium is a regular payment made to maintain an insurance policy, typically monthly or annually. It does not refer to out-of-pocket expenses incurred when receiving care, which makes it unrelated to the concept of a deductible.