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. **Note 2:** The stage groups below are valid in AJCC 7th edition, but not UICC. Approved by UICC. * Stage Group I * Stage Group II * Stage Group III **Note 3:** While the stage groups below are valid, the specified TNM combinations are only included in SEER*RSA: * Stage Group III - (T3, T3a, T3b), NX, M0 - NX is not included in the stage group definition * Stage Group IIIC - T3c, NX, M0 - NX is not included in the stage group definition **Note 4:** 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 T1 N0 M0
1A IA T1a N0 M0
1B IB T1b N0 M0
1C IC T1c N0 M0
2 II T2 N0 M0
2A IIA T2a N0 M0
2B IIB T2b N0 M0
2C IIC T2c N0 M0
3 III T3
T3,3a,3b
N0
NX
M0
M0
3A IIIA T3a N0 M0
3B IIIB T3b N0 M0
3C IIIC T3c
Any T
N0,X
N1
M0
M0
4 IV Any T Any N M1
99 Unknown T0,1,1a-1c,2,2a-2c
TX
NX
N0,X
M0
M0
88 Not Applicable 88 88 88