NAACCR Item #3605: Derived SEER Path Stg Grp

Start Column


End Column




Padding Character

' '


3605 5 SEER 885 - 889

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.
0 Stage 0
0A Stage 0A
0IS Stage 0is
1 Stage I
1A Stage IA
1A1 Stage IA1
1A2 Stage IA2
1B Stage IB
1B1 Stage IB1
1B2 Stage IB2
1C Stage IC
1S Stage IS
2 Stage II
2A Stage IIA
2A1 Stage IIA1
2A2 Stage IIA2
2B Stage IIB
2C Stage IIC
3 Stage III
3A Stage IIIA
3B Stage IIIB
3C Stage IIIC
3C1 Stage IIIC1
3C2 Stage IIIC2
4 Stage IV
4A Stage IVA
4A1 Stage IVA1
4A2 Stage IVA2
4B Stage IVB
4C Stage IVC
OC Occult
88 Not applicable
99 Unknown
Blank Algorithm has not been run