Understanding Health Insurance Basics

Health insurance is a contract between you and an insurance company. In exchange for a monthly payment (your premium), the insurer agrees to help cover certain healthcare costs based on the terms of your plan.

Each plan defines:

• What services are covered
• What services are excluded
• How much you pay
• How much the insurer pays
• When cost-sharing applies

The details matter — and they differ from plan to plan.

When a service is “covered,” it means the plan agrees to pay for part of the cost — but not necessarily all of it.

Coverage may depend on:

• Whether the provider is in-network
• Whether the service is considered medically necessary
• Whether you’ve met your deductible
• Whether prior authorization is required
• Specific exclusions written into the plan

Every plan has limitations. Reading the fine print matters.

Most plans have provider networks.

In-network providers have negotiated rates with your insurer. Out-of-network providers may cost significantly more — or may not be covered at all.

Understanding your network is critical before scheduling care.

An SBC is a standardized document that outlines:

• Key coverage details
• Cost-sharing examples
• Coverage limits
• Common medical scenarios

This document is often the best starting point for understanding your plan.

However, it’s still written in insurance language — which is why many people seek additional clarification before making decisions.

1. Premium
   Your premium is the amount you pay each month to keep your insurance active. This payment does not usually count toward your deductible.

2. Deductible
   Your deductible is the amount you must pay out of pocket for covered services before your insurance begins sharing costs.

   For example: If your deductible is $2,000, you typically pay the first $2,000 of eligible expenses before cost-sharing begins.

   (Some services, like preventive care, may be covered before the deductible — depending on your plan.)

3. Copay
   A copay is a fixed dollar amount you pay for certain services, such as a primary care visit or prescription.

   Example:

   • $30 for a doctor visit
   • $15 for a prescription

   Copays may apply before or after your deductible, depending on your plan design.

4. Coinsurance
   Coinsurance is the percentage of costs you share with the insurance company after meeting your deductible.

   Example: If your plan has 20% coinsurance, you pay 20% of the covered cost, and the insurer pays 80%.

5. Out-of-Pocket Maximum This is the most you’ll pay in covered expenses during a plan year. Once you reach this limit, the insurance company typically covers 100% of eligible costs for the remainder of the year.

   This includes:

   • Deductible payments
   • Copays
   • Coinsurance

   (But usually does not include premiums.)

Insurance documents are written to define legal coverage terms. They often include:

• Technical terminology
• Cross-references to other sections
• Exceptions and exclusions
• Industry-specific language

The goal is accuracy — not readability.

That’s why many employees feel uncertain about what their plan actually covers.