NAACCR Item #3610: Derived SEER Clin Stg Grp

Item # Length Source of Standard Year Implemented Version Implemented Year Retired Version Retired
3,610 5 SEER 2016 16

NAACCR XML: Tumor.derivedSeerClinStgGrp


This data item is needed to store the results of the derived algorithmic calculation of Derived SEER Clinical 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
01SStage 0is
1Stage I
1AStage IA
1A1Stage IA1
1A2Stage IA2
1BStage IB
1B1Stage IB1
1CStage IC
1SStage IS
2Stage 2
2AStage 2A
2A1Stage 2A1
2A2Stage 2A2
2BStage 2B
2CStage 2C
3Stage 3
3AStage 3A
3BStage 3B
3CStage 3C
3C1Stage 3C1
3C2Stage 3C2
4Stage 4
4AStage 4A
4A1Stage 4A1
4A2Stage 4A2
4BStage 4B
4CStage 4C
OCStage OC
88Not applicable
BlankThe algorithm has not been run