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 IIB - T4, N0, M0 - T4 is not included in the stage group definition * Stage Group IIIA - T4, N1, M0 - T4 is not included in the stage group definition * Stage Group IIIB - T4, N2, M0 - T4 is not included in the stage group definition * Stage Group IIIC - T4, (N3 [NOS], N3a, N3b), M0 - T4 is not included in the stage group definition

Default

NAACCR Item

NAACCR #970

Metadata

None

Stage	Stage Display	T	N	M
0	0	Tis	N0,X	M0
1A	IA	T1,1a,1b	N0	M0
1B	IB	T2 T1,1a,1b	N0 N1	M0 M0
2A	IIA	T3 T2 T1,1a,1b	N0 N1 N2	M0 M0 M0
2B	IIB	T4,4a T3 T2 T1,1a,1b	N0 N1 N2 N3,3a,3b	M0 M0 M0 M0
3	III	T4b	NX	M0
3A	IIIA	T4,4a T3 T2	N1 N2 N3,3a,3b	M0 M0 M0
3B	IIIB	T4b T4,4a T3	N0,1 N2 N3,3a,3b	M0 M0 M0
3C	IIIC	T4,4a T4b	N3,3a,3b N2,3,3a,3b	M0 M0
4	IV	T0,1,1a,1b,2,3,4,4a,4b,X	Any N	M1
99	Unknown	T0 T1,1a,1b,2,3,4,4a TX	N1,2,3,3a,3b,X NX Any N	M0 M0 M0
88	Not Applicable	88	88	88