The medical services, procedures, prescription drugs and other healthcare services that your insurer pays for under your plan. Keep in mind that not all care is covered. For instance, some plans will not pay for medications that are available over the counter. And, even if a service is covered, you may still need to pay a co-payment or co-insurance, request pre-authorization, or get a referral from your primary care physician before your insurer will pay. Your policy should contain a detailed list of what is and is not covered.