Health insurance is a type of protection that covers some or all of the costs of medical services, such as doctor visits, hospital stays, prescriptions, and preventive care. Health insurance can help you avoid paying high bills for unexpected illnesses or injuries, and also help you maintain your health and well-being.

However, health insurance can also be confusing and complicated. There are many different types of plans, providers, and terms to understand. In this article, we will explain some of the basics of health insurance, such as:

• How health insurance works
• What are the main types of health insurance plans
• What are the key terms and concepts of health insurance
• How to choose and use a health insurance plan

How Health Insurance Works

Health insurance works by sharing the risk and cost of health care among a group of people. When you enroll in a health insurance plan, you agree to pay a monthly fee, called a premium, to the insurance company. In exchange, the insurance company agrees to pay a portion of your covered health care expenses, based on the terms and benefits of your plan.

However, the insurance company does not pay for all of your health care costs. You usually have to pay some amount out of your own pocket when you receive medical services. This is called cost-sharing, and it can take different forms, such as:

• Deductible: The amount you have to pay each year before your plan starts to pay its share. For example, if your deductible is $1,000, you have to pay the first $1,000 of your covered medical expenses before your plan pays anything.
• Copayment: A fixed amount you pay each time you receive a certain service or item. For example, you may have to pay $20 for each doctor visit or $10 for each prescription.
• Coinsurance: A percentage of the cost you pay for a covered service or item. For example, you may have to pay 20% of the cost of a hospital stay or a surgery.

The total amount you have to pay out of your own pocket each year is called your out-of-pocket maximum. Once you reach this limit, your plan pays 100% of your covered medical expenses for the rest of the year.

Some plans may also have other features that affect how much you pay or what services are covered, such as:

• Network: A group of doctors, hospitals, and other providers that have contracts with your insurance company to provide services at lower rates. You usually pay less when you use providers in your network than when you use providers outside your network.
• Preventive care: Services that help prevent or detect illnesses or diseases before they become serious. Examples include screenings, immunizations, check-ups, and counseling. Most plans cover preventive care at no cost to you, meaning you do not have to pay any deductible, copayment, or coinsurance for these services.
• Subsidies: Financial assistance that helps lower-income people afford health insurance premiums or cost-sharing. Subsidies are available through the health insurance marketplace (also known as the exchange), which is a website where you can compare and enroll in health insurance plans.

What Are the Main Types of Health Insurance Plans

There are many different types of health insurance plans available in the United States. Some of the most common ones are:

• Employer-sponsored plans: These are plans that are offered by employers to their employees and sometimes their dependents. Employers usually pay a portion of the premiums for these plans, which makes them more affordable for employees. Employer-sponsored plans can vary in their benefits and cost-sharing requirements.
• Individual plans: These are plans that you buy on your own, either through the health insurance marketplace or directly from an insurance company or broker. Individual plans can also vary in their benefits and cost-sharing requirements. You may be eligible for subsidies if you buy an individual plan through the marketplace and meet certain income criteria.
• Medicare: This is a federal program that provides health insurance for people who are 65 or older, disabled, or have certain chronic conditions. Medicare has four parts: Part A covers hospital care; Part B covers doctor visits and other outpatient services; Part C (also known as Medicare Advantage) offers private plans that combine Part A and Part B benefits; and Part D covers prescription drugs.
• Medicaid: This is a joint federal-state program that provides health insurance for low-income people who meet certain eligibility criteria. Medicaid benefits and eligibility vary by state.
• CHIP: This is a federal-state program that provides health insurance for children whose families have incomes too high for Medicaid but too low for private insurance. CHIP benefits and eligibility vary by state.

What Are the Key Terms and Concepts of Health Insurance

To understand how your health insurance plan works, you need to know some key terms and concepts, such as:

• Covered services: These are the medical services or items that your plan agrees to pay for, either partially or fully. Covered services are usually listed in your plan’s summary of benefits and coverage (SBC), which is a document that explains what your plan covers and how much you have to pay. Not all services are covered by your plan. For example, your plan may not cover cosmetic surgery, acupuncture, or experimental treatments.
• Excluded services: These are the medical services or items that your plan does not pay for at all. You have to pay the full cost of these services out of your own pocket. Excluded services are also usually listed in your plan’s SBC.
• Prior authorization: This is a process where you or your provider have to get approval from your plan before you receive certain services or items. If you do not get prior authorization when it is required, your plan may not pay for those services or items. Prior authorization is usually required for expensive or complex services, such as surgeries, hospital stays, or specialty drugs.
• Claim: This is a request for payment that you or your provider send to your plan after you receive a medical service or item. Your plan will review the claim and decide how much it will pay based on the terms and benefits of your plan. You will receive an explanation of benefits (EOB), which is a document that shows how your claim was processed and how much you owe.
• Appeal: This is a process where you can ask your plan to reconsider a decision it made about your claim. For example, you can appeal if your plan denies a claim, pays less than you expected, or refuses to cover a service or item. You have to follow the steps and deadlines outlined in your plan’s appeal process.

How to Choose and Use a Health Insurance Plan

Choosing and using a health insurance plan can be challenging, but there are some steps you can take to make it easier:

• Compare plans based on your needs and budget. Consider what kind of services and providers you use or expect to use, how much you can afford to pay in premiums and cost-sharing, and what benefits and features are important to you. You can use tools like the health insurance marketplace or online calculators to compare plans and estimate your costs.
• Read your plan’s documents carefully. Once you enroll in a plan, you should receive an ID card, an SBC, a policy or certificate of coverage, and other materials that explain how your plan works and what your rights and responsibilities are. You should review these documents and keep them in a safe place. If you have any questions or concerns about your plan, contact your plan’s customer service.
• Use your preventive care benefits. Most plans cover preventive care at no cost to you, which means you do not have to pay any deductible, copayment, or coinsurance for these services. Preventive care can help you stay healthy and avoid more serious problems in the future. Examples of preventive care include annual check-ups, immunizations, screenings, and counseling.
• Choose in-network providers whenever possible. You usually pay less when you use providers who are in your plan’s network than when you use providers who are out of your network. You can find out if a provider is in your network by checking your plan’s website, calling your plan’s customer service, or asking the provider directly.
• Get prior authorization when needed. If you need a service or item that requires prior authorization from your plan, make sure you or your provider get it before you receive the service or item. Otherwise, your plan may not pay for it or may pay less than you expected.
• Review your claims and EOBs. After you receive a medical service or item, check your claim and EOB to see how much your plan paid and how much you owe. If you think there is a mistake or disagreement with how your claim was processed, contact your plan’s customer service or file an appeal.

Conclusion

Health insurance is a complex but important topic that affects everyone’s health and finances. By understanding the basics of health insurance, such as how it works, what types of plans are available, what key terms and concepts mean, and how to choose and use a plan, you can make informed decisions about your health care and avoid unnecessary costs.

FAQ

Here are some frequently asked questions about health insurance:

What is the difference between an HMO and a PPO?

An HMO (health maintenance organization) is a type of health insurance plan that requires you to use providers in its network and get referrals from a primary care provider (PCP) to see specialists. A PPO (preferred provider organization) is a type of health insurance plan that gives you more flexibility to use providers in or out of its network and does not require referrals. However, you usually pay more when you use out-of-network providers or services that are not covered by your plan.

What is the difference between a copay and coinsurance?

A copay is a fixed amount you pay each time you receive a certain service or item. For example, you may have to pay $20 for each doctor visit or $10 for each prescription. Coinsurance is a percentage of the cost you pay for a covered service or item. For example, you may have to pay 20% of the cost of a hospital stay or a surgery.

What is the difference between a deductible and an out-of-pocket maximum?

A deductible is the amount you have to pay each year before your plan starts to pay its share. For example, if your deductible is $1,000, you have to pay the first $1,000 of your covered medical expenses before your plan pays anything. An out-of-pocket maximum is the total amount you have to pay out of your own pocket each year. Once you reach this limit, your plan pays 100% of your covered medical expenses for the rest of the year.

What are subsidies and how do I qualify for them?

Subsidies are financial assistance that helps lower-income people afford health insurance premiums or cost-sharing. Subsidies are available through the health insurance marketplace (also known as the exchange), which is a website where you can compare and enroll in health insurance plans. To qualify for subsidies, you have to meet certain income and eligibility criteria, which vary by state and plan.

What are preventive care services and why are they important?

Preventive care services are services that help prevent or detect illnesses or diseases before they become serious. Examples include screenings, immunizations, check-ups, and counseling. Most plans cover preventive care services at no cost to you, meaning you do not have to pay any deductible, copayment, or coinsurance for these services. Preventive care services can help you stay healthy and avoid more serious problems in the future.