Understanding Prior Authorization

What prior authorization is

Prior authorization, sometimes called pre-authorization or pre-approval, is a requirement that your health plan agrees in advance that a service, medication or item will be covered. The plan reviews the request before the care happens, and approval is typically a condition of payment. Not every service needs it. Plans usually publish lists of what does, and the list can change, so it is worth checking your plan documents or asking the plan.

The concept exists in most private plans and in many public programs, but the rules, names and timelines differ by insurer, employer and place. This is general information, not medical, insurance or legal advice.

Why plans use it

Plans generally explain prior authorization as a way to:

• Confirm that the service fits the plan’s definition of medical necessity
• Check that the proposed treatment is appropriate for the diagnosis
• Steer patients toward lower-cost options or sites of care when they are clinically suitable, as with step therapy
• Control spending on high-cost services
• Reduce services considered unnecessary or unsafe

Providers and patient groups often raise concerns that the process adds paperwork and can delay treatment. Both perspectives show up in public debate, so expect that experiences differ widely.

What usually needs it

It varies, but plans commonly apply it to some of the following:

• Advanced imaging, such as certain scans
• Planned surgery and some hospital admissions, including elective inpatient care
• Certain specialty or high-cost prescription drugs
• Medical devices and equipment, which falls under device coverage rules in many plans
• Some therapies, such as extended courses of physical therapy
• Certain out-of-network services, where those are covered at all
• In-home care or long-term supports

Emergencies are generally treated differently. Plans commonly do not require approval before emergency treatment, though rules about notifying the plan afterward may apply. Check how your plan handles emergency room visits.

Who requests it

For in-network care, the provider’s office normally submits the request, because they have the clinical information. Still, the responsibility can be unclear, so ask the office directly: “Does this need prior authorization, and have you submitted it?” If you use an out-of-network provider, the burden to confirm may fall more on you. Always get any approval number and the dates and services it covers.

How the review works

1. The provider sends a request with the diagnosis, the planned service and supporting clinical information.
2. The plan checks whether the service requires approval and whether the request is complete.
3. A reviewer compares it with the plan’s criteria. A clinician may review complicated cases.
4. The plan issues a decision: approved, denied, or a request for more information.
5. Approval typically covers a specific service, provider and date range.

Plans may have standard and faster urgent timelines, which differ by place. Your notice should state the timeline.

Why delays happen

• Incomplete or incorrect paperwork
• Missing clinical records
• The plan requesting additional information, which resets the clock
• Backlogs or staffing problems at the plan or provider
• Confusion about who is responsible for submitting
• Disagreement over which criteria apply
• Changes in the plan’s rules or in the date of service

Many delays are administrative and can be shortened by someone following up. Ask your provider’s office to check status, and if you call the plan, record the date, the person’s name and a reference number.

Approved does not always mean paid

Prior authorization usually confirms that the plan considers the service necessary and covered, but it generally does not guarantee payment. The final payment still depends on factors like whether you are enrolled when the care happens, how much of your deductible is met, and whether the claim is accurate. Your out-of-pocket costs still apply. Read the approval letter for conditions, expiry dates and any limits on the number of visits or units.

If a request is delayed or denied

• Ask for the reason in writing and the specific criteria used.
• Ask your clinician whether more information or a peer-to-peer conversation with the plan’s reviewer is possible. Many plans allow the ordering clinician to speak with a plan reviewer.
• File an internal appeal before the deadline. External review may follow if the plan upholds its decision.
• If treatment is time-sensitive, ask about an expedited process and talk to your clinician about safe options.
• If you are unsure whether to proceed without approval, ask the provider and plan about the financial risk first. Care received without a required approval may be denied, and you could be billed.

If delays continue or the process seems not to follow the rules, a complaint to a regulator or consumer assistance office may be an option.

Discuss urgent health decisions with your clinician rather than waiting on paperwork alone.