Versions of 42 CFR Part 420 - Program Integrity: Medicare on LawServer 2024 42 CFR Part 420 – Program Integrity: Medicare 2023 42 CFR PART 420 – PROGRAM INTEGRITY: MEDICARE 2022 42 CFR Part 420 – Program Integrity: Medicare 2021 42 CFR Part 420 – Program Integrity: Medicare 2020 42 CFR Part 420 – Program Integrity: Medicare