In response to the ongoing national emergency concerning COVID-19, the Centers for Disease Control and Prevention’s (CDC) National Center for Health Statistics (NCHS) is implementing 3 new diagnosis codes, Z28.310, Z28.311 and Z28.39, into the International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM), for reporting COVID-19 vaccination status effective April 1, 2022.