Can I appeal an insurance denial?
Last updated September 3, 2026.
Appealing is a legal right: HealthCare.gov confirms you can demand an internal appeal - full and fair review, sped up if urgent - and then an external review where an independent third party takes the final say away from the insurer. A doctor's medical-necessity letter is the strongest weapon; insurers must explain the denial and the dispute process. Pymander is a free AI doctor, 24/7 by text, and can help.
What to do
- Keep the denial letter - it states the reason and your deadline.
- Ask your doctor for a medical-necessity letter that answers that exact reason.
- File the internal appeal in writing, then external review if it fails.
- Say the word urgent if waiting risks your health - the clock shortens.
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