One of the biggest changes to our ICD-10-CM books for the upcoming new year will be the addition of Chapter 22: Codes for special Purposes (U00-U85). Although this new chapter only consists of two codes and these codes were actually created and valid as early as April 2020, the creation of this chapter is proof that lessons from our current pandemic have been learned. nnHere are the codes, and their guidelines as printed in the Official ICD-10-CM FY 2021 Guidelines;