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Glossary
Plain-language definitions of insurance terms.
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COBRA
A federal law that lets many employees keep their employer health coverage for a limited time after leaving a job, usually by paying the full premium themselves...
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Coinsurance
The percentage of a covered cost you pay after meeting your deductible — common in health policies (e.g., "insurer pays 80%, you pay 20%").
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Copay
A fixed dollar amount you pay for a covered service — common in health insurance ("$30 office visit").
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EPO
An Exclusive Provider Organization covers only in-network providers except in emergencies but, unlike an HMO, usually does not require referrals to see speciali...
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Explanation of Benefits (EOB)
A statement from your health insurer showing what a provider billed, what the plan paid, and what you may owe. It is not a bill.
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Flexible Spending Account (FSA)
An employer-offered account that lets you set aside pre-tax dollars for eligible health costs. Funds are generally use-it-or-lose-it within the plan year, with...
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Formulary
The list of prescription drugs a health plan covers, often organized into tiers that determine your share of the cost.
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Health Reimbursement Arrangement (HRA)
An employer-funded arrangement that reimburses employees for qualified medical expenses. Only the employer contributes, and the rules vary by the type of HRA.
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Health Savings Account (HSA)
A tax-advantaged savings account for qualified medical expenses, available only if you are enrolled in a qualified high-deductible health plan. Unused funds rol...
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HMO
A Health Maintenance Organization is a health plan that generally limits coverage to providers in its network and asks you to choose a primary care physician wh...
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Medicaid
A joint federal and state program that provides health coverage to eligible low-income individuals and families. Eligibility rules and covered benefits vary by...
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Medicare Advantage
A Medicare-approved plan offered by private insurers that bundles Part A and Part B coverage, often with extra benefits. Networks and out-of-pocket costs vary b...
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Medigap
Private insurance, also called Medicare Supplement, that helps pay costs Original Medicare does not cover, such as certain copayments, coinsurance, and deductib...
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Out-of-Pocket Maximum
The most you have to pay for covered services in a plan year. After you reach it, the plan pays 100% of covered in-network costs for the rest of the year.
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POS Plan
A Point of Service plan blends HMO and PPO features: you pick a primary care doctor and need referrals, but you also get limited out-of-network coverage.
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PPO
A Preferred Provider Organization is a health plan that lets you see specialists without a referral and covers some out-of-network care, usually at a higher cos...
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Preauthorization
Approval a health plan may require before it will cover certain services, procedures, or drugs. Skipping it can lead to a denied claim.
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Premium Tax Credit
A federal subsidy that can lower the monthly premium for a health plan bought through the Marketplace, based on household income and size.
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Provider Network
The group of doctors, hospitals, and other providers that have contracted with a health plan to deliver care at negotiated rates. Care from in-network providers...
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Short-Term Health Insurance
Temporary medical coverage meant to fill a gap between other plans. It often excludes pre-existing conditions and may not cover essential benefits, so read the...
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Special Enrollment Period
A window outside yearly open enrollment when you can sign up for or change health coverage after a qualifying life event, such as marriage, a new baby, or loss...
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