The Annotated Histology List has been updated to reflect changes for 2021. These changes include new histology codes, new terms associated with current histology codes, and changes in behavior. Changes from the previous version are in red font.
The list and a description of the list are available at https://www.naaccr.org/icdo3/#1582820761121-27c484fc-46a7
The Annotated Histology List was originally developed for use in registry software (histology pull down menu). However, registrars may find it useful as a supplemental tool when determining reportability, performing casefinding, or assigning histology.