Insurance has its own language, and it can feel like it's designed to confuse you. Here's a plain-English guide to the terms you'll encounter most often.
Premium
The amount you pay monthly for your insurance coverage. Think of it as your membership fee. You pay this whether or not you use any healthcare services.
Deductible
The amount you pay out-of-pocket before your insurance starts paying. If your deductible is $2,000, you pay the first $2,000 of covered expenses yourself.
Copay (Copayment)
A fixed amount you pay for a specific service. For example, $25 for a doctor visit or $10 for a generic prescription. You pay this at the time of service.
Coinsurance
The percentage of costs you share with your insurer after meeting your deductible. If your coinsurance is 20%, you pay 20% and your insurer pays 80%.
Out-of-Pocket Maximum
The most you'll pay in a plan year for covered services. After reaching this amount, your insurer pays 100%. This is your financial safety net.
Network
The group of doctors, hospitals, and other providers that have agreed to provide services at negotiated rates with your insurer. In-network care costs less.
Formulary
The list of prescription drugs your plan covers. Drugs are usually organized into tiers - lower tiers cost less.
Prior Authorization
Pre-approval required from your insurer before certain services are covered. Without it, you may have to pay the full cost.
Explanation of Benefits (EOB)
A statement from your insurer after a claim is processed. It shows what was billed, what the insurer paid, and what you owe. It's NOT a bill.
Open Enrollment
The annual period when you can sign up for or change your insurance plan. Outside this window, you generally can't make changes unless you have a qualifying life event.
Understanding these terms helps you make smarter decisions about health insurance, Medicare, and life insurance.