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Practical benefits guide

Benefits terms, in plain English

A familiar word can mean something specific in a benefits plan. Use these short explanations as a starting point. Your policy, plan documents and applicable rules determine the actual coverage.

What you pay

Look beyond the monthly price when you compare options.

  • Premium — the amount paid to keep coverage active, separate from the cost of receiving care.
  • Deductible — an amount you may pay for covered services before the plan begins sharing certain costs. Some services may be covered before you meet it.
  • Copayment — a set amount for a covered service under the plan’s rules.
  • Coinsurance — your percentage share of an allowed covered cost, subject to the plan’s rules.
  • Out-of-pocket limit — a plan-year limit on certain covered costs. Premiums and all other spending do not necessarily count; check exclusions, network rules and the plan documents.

How coverage works

Confirm the details for the specific plan and provider.

  • Network — the providers and facilities with which a plan has arrangements. Check the exact plan network, not just the insurer’s name.
  • Covered service — a service the plan includes, subject to its conditions, limitations and exclusions.
  • Prior authorization — approval a plan may require before certain services. Approval requirements are not the same as a guarantee of payment.
  • Formulary — a plan’s covered prescription-drug list. Check the medication, tier and any restrictions.

Documents worth keeping

Ask your employer or plan administrator where to obtain these materials.

  • Summary of Benefits and Coverage (SBC) — a standardized overview that helps you compare important health-plan features.
  • Summary Plan Description (SPD) — for plans subject to ERISA, a document explaining how the plan operates and participants’ rights and responsibilities.
  • Explanation of Benefits (EOB) — a statement explaining how a claim was processed; it is not itself a bill.

Sources and next steps

Source links checked October 22, 2026. General education; your plan documents and applicable rules determine coverage and deadlines. External sources are maintained by their publishers.

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