Why Your Health Insurance Denied Your Claim (And How to Fight It)
Health denials often sound final, but many are coding, authorization, medical necessity, or network disputes that can be appealed.
Read the denial reason line by line
Start with the explanation of benefits and denial code. Look for phrases such as not medically necessary, prior authorization missing, out of network, experimental, duplicate claim, or coding mismatch.
Each reason points to a different appeal packet. A medical necessity appeal needs clinical support; a coding dispute needs billing corrections.
Ask for the documents behind the decision
Request the plan language, clinical guideline, reviewer notes if available, and appeal instructions. Keep a dated record of the request.
For employer plans or ACA marketplace plans, external review rights may apply after internal appeals. The exact path depends on plan type and state.
Get your provider involved
A strong appeal often includes a letter of medical necessity, medical records, visit notes, and corrected codes from the provider's billing office.
For urgent health matters, contact the insurer and provider immediately. This article is not medical or legal advice.
See the review workflow before uploading anything.
Use fictional sample data to inspect the denial reason, evidence checklist, deadline, and editable response draft.