Transmittals Pub. 100-04, Medicare Claims Processing Manual Change to the Payment of Allogeneic Stem Cell Acquisition Services, Trans. 10402 (Oct. 20, 2020) Ambulance Inflation Factor (AIF) for Calendar Year (CY) 2021 and Productivity Adjustment, Trans. 10396 (Oct. 16, 2020) This document is only available to subscribers. Please log in or purchase access. Purchase Login