Avoid costly surprises

Prior authorization: what to confirm before treatment

Distinguish an authorization request from a guarantee of payment and coordinate service details, benefit rules and supporting documentation.

Updated · 5 min read

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Prior authorization is a plan review that may be required before certain services, procedures, devices, or medicines are provided. The insurer or plan reviews information about the proposed care and decides whether it meets the plan’s coverage rules. It is sometimes called preauthorization, precertification, or prior approval. The words and process vary, so use the term in your own plan documents.

An authorization is not the same as a guarantee that every related claim will be paid. The service must still be covered, the patient must be eligible on the date of care, and the claim must match the approved service and plan rules. A change in provider, facility, treatment, or date can require a new review. Ask the insurer what the approval covers and keep the written decision.

Find out whether authorization is required

Check the plan’s current evidence of coverage, prior-authorization list, or member portal. Ask the clinician’s office whether it has submitted a request, but confirm with the insurer as well. Providers may handle paperwork, while the insurer controls its own review process. Confirm each part of a planned episode: the facility, professional services, device, medication, and any follow-up treatment may have separate requirements.

When you contact the plan, provide the exact plan name, member ID, proposed service, provider, facility, and expected date. Ask:

  • Is prior authorization required for this specific service under my plan?
  • Who is responsible for submitting the request, and what documents are needed?
  • Has the request been received, and what is its case or reference number?
  • Is the request complete, or is additional clinical information needed?
  • What is the expected review timeline, and how can I check the status?
  • If approved, what service, provider, facility, date range, and quantity does the approval cover?
  • Does the approval satisfy only the authorization requirement, or are there other benefit conditions?

Write down the representative’s name, date, time, and reference number. Save portal messages, approval letters, and copies of documents sent by the provider. If an appointment is approaching, tell the provider’s office when you need a decision and ask whom to contact if the plan requests more information.

Keep the request specific and complete

The plan may need a diagnosis, treatment history, clinical notes, test results, and an explanation of why the proposed service is appropriate. Your clinician usually supplies the medical records, but you can ask what was submitted and whether the request includes the correct service code, provider, and location. A missing document or mismatched code can delay review or cause a denial.

If the treatment plan changes, ask whether the existing approval still applies. A different facility or a revised procedure can fall outside the original authorization. Do not assume that approval for one stage also covers all later care. Ask the provider to verify the approval before the service, especially for a multi-stage treatment or a prescription that may be filled at different quantities.

For a prescription, check whether authorization is required for the exact medication, dose, formulation, and quantity. The plan may ask the prescriber for clinical details or require that other covered options be tried first. If the drug is not covered, ask whether the plan offers a formulary exception process and how to appeal a denial. Keep the denial and the plan’s criteria; they explain the next step.

If the request is pending or incomplete

Call the insurer before the scheduled service and ask what is missing, who must provide it, and whether the review can be expedited under the plan’s rules. Contact the provider’s authorization team with that answer. Record the date documents are submitted and confirm that they arrived. If the service is delayed, ask the treating clinician about safe timing and alternatives; coverage rules do not replace medical advice.

Do not assume silence means approval. Ask the plan to confirm the decision in writing or through its portal. If an authorization expires before the service date, confirm whether the provider must submit a renewal. If a plan asks for more information, identify the deadline and make sure the insurer receives the response.

Emergency situations are different from scheduled services. If you believe you need emergency care, seek help promptly; do not delay emergency treatment while trying to obtain a routine prior authorization. Afterward, the provider and insurer can explain how the claim is handled under the plan and applicable law.

If the plan denies the request

Ask for the denial in writing and read the reason carefully. The notice should explain the plan’s basis and the appeal process. Common issues include a service not being a covered benefit, a missing clinical document, a coding mismatch, a plan rule about medical necessity, or use of a provider or facility outside the network. Ask for the exact plan provision or clinical criteria used and request a copy of relevant records considered in the decision.

Then discuss the denial with the treating clinician. The clinician can explain the medical rationale, send missing information, or correct an error in the request. If the plan’s decision is still disputed, file an internal appeal using the deadline and method in the denial notice. Keep proof of submission. Some situations allow an expedited appeal when waiting could seriously jeopardize health; ask the plan how to request one and have the clinician document the urgency.

If an internal appeal is unsuccessful, you may have a right to an independent external review, depending on the plan and issue. CMS explains that consumers can appeal coverage decisions and that external review may be available after an internal denial. See CMS’s guide to appealing denials and external appeals. The plan’s own notice and your state’s rules control the process and deadline.

Keep records that connect the request to the claim

Save the authorization decision, case number, approved service details, provider and facility names, start and end dates, quantity limits, and any conditions. After care, compare the EOB with the approval and provider bill. If the insurer processes the claim differently than expected, ask whether the claim matched the authorization and whether any separate benefit rule applied. The approval can help explain the history, but it does not replace the EOB or policy language.

For ongoing treatment, ask when the authorization ends and how early the renewal should be submitted. Track each renewal and avoid assuming that a previous approval automatically continues into a new plan year. A change of insurer, employer, or plan can require a new request even if the treatment itself has not changed.

This article explains a general process, not a guarantee of coverage or medical advice. Prior-authorization rules and appeal rights vary by plan, state, and type of insurance. Use the current plan documents and denial notice, and contact the insurer and treating clinician for a decision tied to your specific care.

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