How to appeal a Zepbound denial, step by step

File an internal appeal with your plan within 180 days of the denial, with a letter from your physician and the records that answer the plan's reason. If the plan still says no, ask for an independent external review within 4 months, and your plan has to accept that decision. Plans you buy yourself or get through a small employer must also offer a drug exception process.

Reviewed by Darshan Patel, MD, Obesity medicine physician, on 2026-11-12. Next review 2027-05-11.

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You can ask your plan to look again

A Zepbound denial can feel final, especially when you've already waited weeks. It isn't. You have the right to an internal appeal with your plan, and then to an independent review outside it. Here's how to do each one, and what to include so the reviewer has what it needs.

Step 1: Find out exactly why

Your plan has to tell you why it said no and how to dispute it. Look for the reason in the letter. Was it a missing record, a criterion the plan says you don't meet, or a plan that doesn't cover weight-loss medicine at all? Your appeal should answer that reason directly.

Step 2: File the internal appeal

• Deadline: within 180 days (6 months) of the denial notice.
• How: use your plan's appeal form, or write to the plan with your name, claim number and member ID.
• What to add: anything you want the plan to consider, especially a letter from your physician.
• How long it takes: 30 days for a medicine you haven't received yet. When your health can't wait, the plan must decide as quickly as your condition requires.
• Keep copies of everything you send and receive.

Step 3: Ask for an external review

If the plan still says no, an independent reviewer can look at the case. External review covers denials that involve medical judgment, such as whether you meet the plan's criteria.

• File within 4 months of the plan's final denial.
• Standard reviews are decided within 45 days. Urgent ones are decided within 72 hours or less.
• Your plan is required by law to accept the reviewer's decision.
• Your denial letter tells you who handles the review. When your situation is urgent, you can ask for an external review at the same time as the internal appeal.

Another route: a drug exception request

Plans sold to individuals and small employers, other than older grandfathered plans, have to cover the ACA's essential health benefits, which include prescription drugs. A plan that covers essential health benefits must have a process to ask for a clinically appropriate drug it doesn't otherwise cover. A standard request is decided within 72 hours, an urgent one within 24 hours, and a denied request can go to independent external review.

What to put in your appeal packet

• The denial letter, your claim number and your member ID.
• A letter from your physician that answers the plan's reason point by point.
• Records that show you meet the plan's criteria and Zepbound's approved use: your weight and BMI over time, and any weight-related conditions.
• If you have moderate to severe obstructive sleep apnea, the sleep study that shows it. Zepbound is approved to treat it in adults with obesity.
• What you've already tried for your weight, if the plan asks.
• A copy of the plan's criteria, with each one checked against your record.

If you have Medicare or Medicaid

• Medicare: ask your drug plan for a coverage determination or an exception. If it says no, you have 65 days from the denial notice to appeal. By law, Part D can't cover medicines used specifically for weight loss, but it can cover Zepbound for sleep apnea. Also see the Medicare GLP-1 Bridge.
• Medicaid: coverage for weight loss is up to each state, but Medicaid must cover Zepbound for sleep apnea.

For more on what to check first, read how to check your GLP-1 coverage and what changed for 2027. If a Wegovy request was denied, see next steps after a Wegovy denial.

How Aayu Well helps

An appeal takes time, records and follow-up, and you shouldn't have to carry it alone. Our visits are billed to your insurance, and we collect any copay at check-in. Your obesity medicine physician sees you by video and decides with you whether medicine is right for you.

If it is, we submit the prior authorization for brand-name medicine and our team runs it as a concierge service: the paperwork, the follow-up, and the appeal if your plan says no. We also help you apply for manufacturer copay assistance. If the answer is still no, we talk through every alternative together, including the makers' direct options in our GLP-1 cash price guide. Most major insurance is accepted. Book my consultation

Good to know

• Your plan makes the final decision on coverage. We can't promise an approval, but we make the strongest case your health record supports.
• The deadlines here are the federal ones HealthCare.gov lists. Your denial letter explains how to dispute the decision for your plan, so go by the letter.
• Medicine is prescribed when it's right for you after a consultation.

Questions people ask

How long do I have to appeal a Zepbound denial?

Under the federal rules HealthCare.gov describes, 180 days (6 months) from the denial notice for the internal appeal, and 4 months from the final denial to ask for an external review. Your denial letter explains the steps for your plan.

How long does my plan have to answer?

For a medicine you haven't received yet, 30 days for the internal appeal, and faster when your health can't wait. An external review takes up to 45 days, or 72 hours or less when it's urgent.

Does an external review cost anything?

Not when it goes through the federal process HealthCare.gov describes. A state process or a review organization your plan uses may charge a small, capped fee.

Can Zepbound be covered for sleep apnea?

Zepbound is approved to treat moderate to severe obstructive sleep apnea in adults with obesity. Medicare Part D can cover it for that use, Medicaid must cover it for that use, and you can ask a private plan whether it does.

Can I use the Zepbound Savings Card while I appeal?

If you have commercial insurance, the card has options whether or not your plan covers Zepbound. People with Medicare, Medicaid or other government coverage can't use it. Check the current terms on Lilly's site.

Sources

1. HealthCare.gov: Appealing a health plan decision
2. HealthCare.gov: Internal appeals
3. HealthCare.gov: External review
4. 45 CFR 156.122(c): Prescription drug benefits, exception process (Cornell LII)
5. CMS: Essential health benefits, individual and small group markets
6. HealthCare.gov glossary: Essential health benefits
7. DailyMed: Zepbound (tirzepatide) prescribing information (revised 8/2026)
8. KFF: What to know about the BALANCE Model for GLP-1s in Medicare and Medicaid and the Medicare GLP-1 Bridge (updated May 11, 2026)
9. KFF: Medicaid coverage of and spending on GLP-1s (January 16, 2026)
10. Medicare.gov: Appeals in a Medicare drug plan
11. Lilly: Zepbound coverage and savings