Learn about Medicare's Part A and B five levels of claim appeals; the new level three, on-the-record review; and helpful tips for filing an appeal.

For more information, review the Medicare Parts A & B Appeals Process Booklet;

Additional links to resources for Medicare FFS (Part A and Part B) appeals and reopenings:

CMS Internet Only Manual (IOM):
– Appeals (guidance for Medicare Administrate Contractors (MACs) on processing appeals:
– Reopenings (guidance for MACs on conducting reopenings:

Regulations applicable to FFS appeals and reopenings:
– 42 CFR 405 subpart I:
– Revision to regulations at 42 CFR 405 subpart I (effective March 20, 2017):

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