How to appeal a GLP-1 denial

Read the denial letter and find the real reason

Every denial has a stated reason, and the reason decides everything that follows. Your appeal has to answer the specific objection, not a general one. Read the letter slowly and look for the category it falls into:

• Step therapy or "fail first." The plan wants you to try another medication before this one. See the step therapy guide.
• Not medically necessary. The plan says the records did not show its criteria were met. The most common reason, and often the most beatable. See not medically necessary.
• Off-label for weight loss. Common for Ozempic and Mounjaro, which are FDA-approved for type 2 diabetes, not weight management. See off-label for weight loss.
• Formulary exclusion or quantity limit. The drug is not on your plan's list, or the dose is capped. See formulary exclusion and quantity limit.
• Missing prior authorization or documentation. A required form or record was not in the file. See missing documentation.

Note any reference or claim number, the date of the denial, and any policy name the letter mentions. You will use all of it.

Find your deadline, and protect it

The single most important number on the page is your appeal deadline. Many plans allow somewhere between 60 and 180 calendar days from the date of the denial to file an internal appeal, but the only deadline that matters is the one printed on your letter. If you are not sure, call the member number and ask for the appeal deadline in writing.

If your situation is urgent, where waiting could seriously jeopardize your health, you can usually request an expedited appeal with a much faster decision timeline. The letter or your plan documents will say how.

Gather the records your plan asks for

An appeal is only as strong as the evidence behind it. The exact records depend on your medication and the reason for denial, but most GLP-1 appeals draw on the same kinds of documents:

• The denial letter itself, and your plan's published coverage policy for the drug if you can find it.
• Your diagnosis and the clinical details that match it. For weight-management drugs that may include BMI history and any weight-related conditions; for diabetes drugs, your type 2 diabetes diagnosis and relevant labs.
• Documentation of any medications you have already tried, with dates, especially if the denial cites step therapy.
• A letter of medical necessity from your prescriber, where one helps. This is clinical judgment and comes from your clinician.

You have a right to ask your insurer for the specific criteria it used to deny the claim and for the records in your file. Requesting them in writing is a normal part of the process.

Write to your plan's own coverage rules

This is the part that wins appeals, and the part most people find hardest. A generic "please cover my medication" letter is easy to deny. An appeal that points, line by line, to your plan's own published criteria and shows where your records meet each one is much harder to wave away, because the reviewer is bound to that policy text.

A clear appeal usually does four things:

1. States the claim or reference number and the exact decision you are appealing.
2. Names the specific coverage policy or criteria the plan applied, where you can identify it.
3. Answers each criterion in order, citing the page or record that proves it, and grounds the medical facts in the FDA-approved label for the drug.
4. Attaches the supporting records and any letter of medical necessity.

File the internal appeal the way your plan requires

Send the appeal exactly how your plan tells you to. That is usually a member portal, a mailing address, or a fax number, and sometimes a specific form. Following the stated method matters as much as the content; a strong appeal sent the wrong way can stall.

• Keep a copy of everything you send and a record of the date you sent it.
• If your plan offers more than one internal level, know that a "no" at level one is not the end. You can usually request a second internal review.
• Insurers generally must respond within set timeframes, often 30 days for a service you have not yet received and 60 days for one you have.

If you lose, escalate to external review

This is the step most people do not know they have. Under the ACA, after you exhaust your plan's internal appeals you generally have the right to an external review, where an independent organization with no stake in the outcome decides the case. The external reviewer's decision is binding on the insurer.

External review usually must be requested within a set window, often around four months after the final internal denial, and your final denial letter explains how to start it. For the full breakdown of both layers, read internal vs external review.