Historical Impact Files for FY 1994 through Present
Guidance for list of Historical Impact Files dating back to FY 1994.
Issued by: Centers for Medicare & Medicaid Services (CMS)
Issue Date: February 11, 2020
The list below shows historical impact files. The impact files are generally prepared in the summer preceding the Federal Fiscal year and are based on the best data available at the time. The files are used in estimating payment impacts of various policy changes to the IPPS proposed and finalized in the Federal Register.
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DISCLAIMER: The contents of this database lack the force and effect of law, except as authorized by law (including Medicare Advantage Rate Announcements and Advance Notices) or as specifically incorporated into a contract. The Department may not cite, use, or rely on any guidance that is not posted on the guidance repository, except to establish historical facts.