Appeal guides & free letter templates
UPDATED JULY 2026 · U.S. PLANS · FREE TO USE
Find your denial reason below. Each guide explains what the denial actually means, your deadlines, the evidence that wins, and includes a free copy-paste appeal letter template. About 4 in 10 appeals succeed — the paperwork just has to be done right.
How to appeal a denial, step by step
The full process: internal appeal → external review, with every deadline.
Free templateAppeal letter template (all purposes)
A solid general-purpose letter with instructions for filling every blank.
Most common"Not medically necessary"
The most frequent denial reason — and one of the most beatable.
Pre-servicePrior authorization denied
When approval is refused before treatment — including urgent cases.
MedicationsStep therapy / "fail first"
They want you to fail cheaper drugs first. Your history may already qualify.
MedicationsDrug not on formulary
How to request a formulary exception with your prescriber's support.
NetworksOut-of-network denial
Network-gap exceptions, surprise-billing protections, and emergencies.
Coverage"Experimental / investigational"
When the treatment is standard care and their policy just lags the evidence.
Second chanceExternal review, explained
The independent, binding review most people never use — and should.
Your denial letter has the answers. Upload it.
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