Global Insurance Claim
Denial Library

Find denial appeal guides specific to your medical procedure.

Find insurer-specific denial guides with appeal instructions tailored to each company's policies.

Browse by Denial Reason

Every denial reason has specific appeal strategies. Select yours to see how to respond.

Browse by Country

Insurance appeal rules differ by country. Select your country for jurisdiction-specific guidance.

Ready-to-use appeal letter templates for the most common denied procedures, with key arguments and required documents.

Browse by Medical Condition

Condition-specific denial guides covering the most common denial reasons, appeal strategies, and procedure guides for each diagnosis.

About the Global Claim Denial Library

ClaimBack maintains a global denial intelligence library explaining why insurance claims are denied and how to appeal them. Every guide is built on real insurer complaint data, regulatory guidance, complaint statistics, and documented appeal patterns — not generic templates.

The library covers appeal procedures across all major jurisdictions — from the United States ACA external review process to the UK Financial Ombudsman, Singapore FIDReC, and Australia's AFCA.

Whether your claim was denied for medical necessity, prior authorisation, coding error, or a plan exclusion — you will find jurisdiction-specific guidance here.