2021 ICD-10-PCS The 2021 ICD-10 Procedure Coding System (ICD-10-PCS) files below contain information on the ICD-10-PCS updates for FY 2021. These 2021 ICD-10-PCS codes are to be used for discharges occurring from October 1, 2020 through September 30, 2021. Note: There is no GEMs file. As stated in the FY 2016 IPPS/LTCH PPS final rule (80 […]