Insurer approval required before certain care is covered.
Prior authorization (or pre-authorization) means your insurer must approve a service, drug, or procedure in advance or it may not be covered. Missing it is a common reason claims are denied — and a common thing to appeal.
“This procedure requires prior authorization from your plan.”
Upload your bill or EOB and Main AI checks it line by line, flagging where a charge or term like this may not be right.
Analyze my document free →Many “not covered” denials are actually missing or expired authorizations, not a judgment that the care was unnecessary. If a claim was denied for lack of prior auth, your provider can often submit a retroactive request or you can appeal — the care itself may be perfectly coverable.
See this in your own document: run a free analysis — findings quote the exact language.
“Claim denied: no prior authorization on file.”
This denial reason is frequently fixable. Ask the provider to submit the authorization or a peer-to-peer review, and appeal within your plan’s deadline.