In this paper, we analyze the impact of risk adjustment model changes from the final 2023 HHS HCC risk adjustment model based on 2021 data collected through the WNRAR project. We scored data with the final 2021, 2022, and final 2023 HHS HCC risk adjustment models and summarized the impact to risk scores and relative risk of issuers in this paper. This paper reflects an update to our previous April 2022 Model Impact paper. The prior paper used the same data scored on the 2023 proposed model and can be found here.

Wakely 2023 Final HHS-HCC Model Impact
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