Prior Authorization

What Is Prior Authorization?

Prior authorization is a health-plan rule that requires approval before certain services, medications, or procedures are covered. The plan may require the provider or patient to submit information showing that the care meets the plan's medical-necessity or coverage rules before the plan agrees to pay.

Prior authorization is not the same thing as a bill. It is a coverage step. But missing that step can create delays, denials, or unexpected costs, especially when care is expensive or specialized.

Key Takeaways

• Prior authorization means the plan requires approval before certain care is covered.
• It can apply to medications, imaging, surgeries, therapies, durable medical equipment, or other services.
• Approval rules can differ by plan, provider network, and prescription formulary.
• Skipping the required authorization can change claim payment or delay care.
• Prior authorization should be reviewed when comparing plans for expected treatment or recurring medications.

How Prior Authorization Works

When prior authorization is required, the provider or patient usually submits information before the service or prescription is used. The plan reviews whether the requested care fits its coverage rules. If approved, the plan may cover the care under its normal cost-sharing rules. If denied, the patient may need to appeal, try a different option, or pay more out of pocket.

The process can be routine for some services and frustrating for others. The important planning point is that prior authorization can affect timing and access, not just price.

Why It Matters During Plan Comparison

Prior authorization matters most when a household expects specific care. If someone needs ongoing therapy, specialty medication, imaging, surgery, or a known treatment plan, the household should check whether the plan requires approval and what the process looks like.

A plan that looks cheaper can be a poor fit if it adds repeated approval friction for the care the household is most likely to use. That does not make prior authorization automatically bad. It means the rule belongs in the comparison before enrollment, not after a claim problem appears.

Prior Authorization and Prescription Coverage

Prescription drugs may also require prior authorization under the plan's formulary. Some medications may require documentation, step therapy, quantity limits, or use of a preferred pharmacy. For recurring prescriptions, those rules can change the real cost and convenience of the plan.

Before choosing coverage, verify whether important medications are covered, what tier they fall into, and whether approval is required before the plan pays.

Where to Go Next

Read How to Compare Health Insurance Plans During Open Enrollment if you are comparing plans. Read HMO vs. PPO vs. EPO vs. POS if network and referral rules are also part of the decision. Use the Health Insurance Plan Comparison Tool if two plans need to be compared side by side.

The Bottom Line

Prior authorization is a health-plan rule that requires approval before certain services, medications, or procedures are covered. It can affect access, timing, and cost, so it should be checked before choosing a plan when expected care or prescriptions depend on it.