copay
noun [ C ] uk/ˈkəʊ.peɪ/ us/ˈkoʊ.peɪ/ (also copayment, /kəʊˈpeɪ.mənt/ /koʊˈpeɪ.mənt/)
共付费用（美国、德国和其他一些国家，医疗保险投保人每次使用门诊、处方药等项目时所需支付的定额费用）
a fixed cost for a service paid by someone who has insurance (= an agreement that a company will pay certain costs for health care, etc.) each time they use that service. This system is used in the US, Germany, and some other countries.
Because she had health insurance, her only expense was a $10 copay. 因为她有医疗保险，所以只需支付10美元的共付费用。
A growing number of people don't have insurance or can't afford the copayments and deductibles their insurance policies require. 越来越多人没有保险，或者无力负担保险合同规定的共付费用和免赔额。
- More examples
- A copay applies each time the service is provided.
- There is a tiered copay system, in which patients pay $10 for generic prescriptions, $25 for preferred brand-name drugs and $40 for brand name drugs with a generic alternative.
- The children would have free MinnesotaCare coverage for a year, but parents would have to make $5 copayments per visit.