The Complete Insurance Denial Code Library — What Every Code Means
The ClaimCompass Denial Code Library translates every major insurance denial code and tells you exactly what to do.
Medicare and Medicaid have strong appeal rights most beneficiaries never use. Here is what they actually are.

Medicare and Medicaid are the two largest public health insurance programs in the United States, covering over 150 million Americans. Both programs deny claims. Both programs have formal, legal appeal processes. And most beneficiaries accept denials without ever knowing they can fight back.
Medicare provides a five-level appeal process for denied claims — from redetermination through federal court. The key facts:
Medicare covers Part A (hospital), Part B (medical), Part C(Medicare Advantage), and Part D (prescription drugs). Each part has its own appeal process with specific forms and deadlines.
Medicare Advantage plans must cover everything original Medicare covers, but they manage their own prior authorization and appeals processes. Key rights:
Medicaid is administered by states within federal guidelines, so specifics vary — but your core appeal rights are protected by federal law.
If Medicaid proposes to reduce or terminate a service you currently receive, and you file an appeal within 10 days of receiving the notice, your benefits must continue at the current level while your appeal is pending. This is called the continuation of benefits rule — and it is one of the most powerful rights Medicaid beneficiaries have.
ClaimCompass analyzes both Medicare and Medicaid denials and generates formally written appeal letters for every level of review.
Upload your Medicare or Medicaid denial at myclaimcompass.aifor a free analysis.