Compliance and Variability of Hospital Price Transparency in Total Knee and Hip Arthroplasty in the United States.

In summary, compliance with CMS's 2019 rule was poor overall. Fourteen of the 50 hospitals did not adequately report any DRG pricing, and only 15 of the hospitals were fully compliant with the mandate. In addition to poor compliance, the reported costs had variation not strongly accounted for by established geographic differences.