Accounts for Medicare premium rates that were published after the official Medicaid forecast was completed. During the development of the Medicaid forecast, due November 1, the Department of Medical Assistance Services had to use preliminary assumptions on Medicare premium rates. Since the forecast was finalized, the federal government has released actual Medicare Part A, B and D rates for effective January 1, 2022. The forecast assumed 5% as assumed for Part A, 6.73%for Part B, and 4.86% for Part D; however the actual rates are 5.9%, 14.5%, and 7.31% respectively.