TNM 7 Stage Group

This input is used for staging

Notes

**Note 1:** SEER*RSA added additional information to UICC 7th edition stages with UICC approval. If your registry submits the directly assigned Stage Groups to agencies other than SEER, please check the AJCC 7th edition manual to ensure you are using the appropriate logic. * Stage Group III (as defined in the table) **Note 2:** While the stage groups below are valid, the specified TNM combinations are only included in SEER*RSA. * Stage Group IIA - T2, N0, M0 - T2 is not included in the stage group definition * Stage Group IIB - T3, N0, M0 - T3 is not included in the stage group definition **Note 3:** TNM does not include an in situ category for this schema. Assign 88 to stage group for in situ cases.

Default

99

NAACCR Item

NAACCR #970

Metadata

None
Stage Stage Display T N M
1 I T1a N0 M0
2A IIA T1b,1c,2,2a N0 M0
2B IIB T3,3a N0 M0
3 III T4 N0 M0
3A IIIA T4a N0 M0
3B IIIB T4b N0 M0
4 IV Any T
Any T
N1
Any N
M0
M1,1a-1c
99 Unknown T1,X
Any T
N0
NX
M0
M0
88 Not Applicable 88 88 88