Two seemingly small revisions and the addition of a paragraph were made to the Chapter 2: Neoplasms (C00-D49) “Official Guidelines for Coding and Reporting” (OCG), specifically C.2.d. Primary malignancy previously excised, and C.2.m. Current malignancy versus personal history of malignancy These guideline revisions became effective October 1, 2018. The OCG are applicable to all health […]