Final answer:
Coinsurance is the term used when a consumer pays a portion of all healthcare expenditures, beyond the deductible, up to a possible limit. It is a percentage of the expenses that the insured shares with the insurance company.
Step-by-step explanation:
The term for when the consumer pays a portion (percentage) of all expenditures, sometimes up to a limit, is referred to as coinsurance. In health insurance, this means that after the insured has paid the deductible, they are then responsible for paying a certain percentage of the remaining costs. For instance, with a coinsurance rate of 20%, the insured would pay 20% of the expenses while the insurance company covers the remaining 80%. This kind of cost-sharing approach, which includes deductibles, copayments, and coinsurance, helps reduce moral hazard by ensuring that the policyholder bears part of the healthcare costs, potentially leading them to make more conscientious decisions regarding their use of medical services.