Find out which code goes into effect October 1. Genetic testing gets overhauled for CPT® 2021, but not all of the changes are active as of January 1. You will have new bladder cancer genetic testing code 0016M (Oncology (bladder), mRNA, microarray gene expression profiling of 209 genes, utilizing formalin-fixed paraffin-embedded tissue, algorithm reported as molecular subtype (luminal, luminal infiltrated, basal, basal claudin-low, neuroendocrine-like)). This code goes live October 1, 2020. You also have a bevy new genetic testing codes to learn, all of which become valid after January 1, 2020. Growth and expansion of genetic testing continues to be evident in the CY2021 code set. You will see sixteen new codes in the Tier 1 molecular pathology procedure code section. These new codes allow for an increase in the number and specificity of genes being analyzed which enhances cancer screening opportunities, says Kelly Loya, CPC-I, CHC, CPhT, CRMA, associate partner at Pinnacle Enterprise Risk Consulting Services LLC in Charlotte, North Carolina. They are: