None; this item may be auto-coded by cancer registry software.
AJCC staging is coded according to the version of the AJCC Staging Manual in use at the time the case was diagnosed. Prior to implementation of the 5th edition of the manual, some "slippage" in version occurred, and edition numbers are not included in the PUF for those older cases.
|00||Not staged (cases that have AJCC staging scheme and staging was not done)|
|88||Not applicable (cases that do not have an AJCC staging scheme)|
|99||Staged, but the edition is unknown. Prior to the 5th edition|