NAACCR Item #3605: Derived SEER Path Stg Grp

Item # Length Source of Standard Year Implemented Version Implemented Year Retired Version Retired
3,605 5 SEER

NAACCR XML: Tumor.derivedSeerPathStgGrp


This data item is needed to store the results of the derived algorithmic calculation of Derived SEER Pathologic Stage Group.


The SEER Program is developing an algorithm to calculate clinical and pathologic stage group based on their T, N, and M components and additional information as needed to calculate stage. For example, for thyroid, additional information is needed on histology and age to calculate stage. Once the T, N, and M are known an algorithm can assign the stage group instead of a registrar having to look up the stage. There are also provisions for a separate field for directly assigned stage group if the registrar prefers entering it.


0Stage 0
0AStage 0A
0ISStage 0is
1Stage I
1AStage IA
1A1Stage IA1
1A2Stage IA2
1BStage IB
1B1Stage IB1
1B2Stage IB2
1CStage IC
1SStage IS
2Stage II
2AStage IIA
2A1Stage IIA1
2A2Stage IIA2
2BStage IIB
2CStage IIC
3Stage III
3AStage IIIA
3BStage IIIB
3CStage IIIC
3C1Stage IIIC1
3C2Stage IIIC2
4Stage IV
4AStage IVA
4A1Stage IVA1
4A2Stage IVA2
4BStage IVB
4CStage IVC
88Not applicable
BlankAlgorithm has not been run