Part 421 — Medicare Contracting
- Subpt. A Scope, Definitions, and General Provisions §§421.1 to 421.5
- Subpt. B Intermediaries §§421.100 to 421.128
- Subpt. C Carriers §§421.200 to 421.214
- Subpt. D Medicare Integrity Program Contractors §§421.300 to 421.316
- Subpt. E Medicare Administrative Contractors (MACs) §§421.400 to 421.404
- Subpt. F Subpart F [Reserved]