LEARNING CENTER

Insurance Appeal Guides

Expert guides to help you understand your rights, navigate the appeals process, and fight insurance denials effectively.

APPEAL GUIDE

How to Write an Insurance Appeal Letter That Insurers Actually Respond To

Step-by-step guide to writing an insurance appeal letter that cites the right clinical guidelines. Includes a free template.

8 min readJuly 7, 2026

PRIOR AUTHORIZATION

Prior Authorization Denied? Here's Exactly What To Do Next

Your prior authorization was denied — here's exactly what to do in the next 24 hours, this week, and your legal rights under the 2026 CMS mandate.

7 min readJuly 7, 2026

AI & INSURANCE

How Insurers Are Using AI to Deny Claims in 2026 — And What You Can Do About It

Algorithmic claims review is real and documented. Here's what we know factually, what your rights are, and how to respond.

6 min readJuly 7, 2026

YOUR RIGHTS

Internal Appeal vs External Review: What's the Difference?

Understand the difference between an internal appeal and external review for denied health insurance claims — and when to use each.

5 min readJuly 7, 2026

DEADLINES & TIMELINES

How Long Does Your Insurance Have to Respond to an Appeal?

Insurance appeal response deadlines by claim type — standard, urgent, Medicare, Medicaid, and prior authorization timelines with sources.

6 min readJuly 7, 2026

MEDICAL NECESSITY

Insurance Denied as "Not Medically Necessary"? Here's How to Fight It

"Not medically necessary" is the most common and most winnable insurance denial reason. Here's exactly how to appeal it.

7 min readJuly 7, 2026

Don't want to fight alone?

Upload your denial letter — our AI builds your appeal in 90 seconds. You pay 15% only when we win.

Upload Your Denial Letter →Read FAQ

Disclaimer: ApproveIt is a document automation platform, not a law firm or medical provider. This content is for general informational purposes and is not legal or medical advice. Consult a licensed attorney or your treating physician for advice specific to your situation.