The amount you pay for covered health care services before your insurance plan starts to pay. With a $2,000 deductible, for example, you pay the first $2,000 of covered services yourself. After you pay your deductible, you usually pay only a copayment or coinsurance for covered services. Your insurance company pays the rest.

Continue Reading at healthcare.gov/glossary/deductible

The percentage of costs of a covered health care service you pay (20%, for example) after you've paid your deductible.

Let's say your health insurance plan's allowed amount for an office visit is $100 and your coinsurance is 20%.If you've paid your deductible: You pay 20% of $100, or $20. The insurance company pays the rest.If you haven't met your deductible: You pay the full allowed amount, $100.

Continue Reading at healthcare.gov/glossary/co-insurance

Also called an Out-of-Pocket Maximum / Limit.

The most you have to pay for covered services in a plan year. After you spend this amount on deductibles, copayments, and coinsurance for in-network care and services, your health plan pays 100% of the costs of covered benefits.

The out-of-pocket limit doesn't include:

Your monthly premiums

Anything you spend for services your plan doesn't cover

Out-of-network care and services

Costs above the allowed amount for a service that a provider may charge

Continue Reading at healthcare.gov/glossary/out-of-pocket-maximum-limit/

Any insurance plan that meets the Affordable Care Act requirement for having health coverage. To avoid the penalty for not having insurance for plans 2018 and earlier, you must be enrolled in a plan that qualifies as minimum essential coverage (sometimes called “qualifying health coverage”). Examples of plans that qualify include: Marketplace plans; job-based plans; Medicare; and Medicaid & CHIP.

Continue Reading at healthcare.gov/glossary/minimal-essential-coverage