Collaborative Stage

Collaborative Stage for TNM 7 - Revised 10/13/2010 [ Schema ]

CS Extension

Note 1: When both the Federation Internationale de Gynecologie et d'Obstetrique (FIGO) stage and extension detail are available, record the code with extension detail in preference to a statement of FIGO stage.
Note 2: According to AJCC, metastasis to genital structures for gestational trophoblastic tumors (GTT) is considered T2 and not M1. Metastasis to genital structures is coded in CS Extension and not in CS Mets at DX.
Note 3: For CS Extension codes 100-850, substaging is determined by the values in CS Site-Specific Factor 1, Prognostic Scoring Index.

Code	Description	TNM 7 Map	TNM 6 Map	SS77 Map	SS2000 Map
000	OBSOLETE DATA CONVERTED V0203 See code 999 In situ: noninvasive; intraepithelial	ERROR	ERROR	ERROR	ERROR
100	Confined to placenta	T1	T1	L	L
300	Localized, NOS	T1	T1	L	L
320	Confined to uterus : cervix, corpus, and NOS	T1	T1	RE	RE
330	FIGO Stage IA	T1	T1	L	L
340	FIGO Stage IB	T1	T1	L	L
350	FIGO Stage I [NOS]	T1	T1	L	L
400	Adjacent connective tissue, NOS	T2	T2	RE	RE
600	OBSOLETE DATA RETAINED AND REVIEWED V0203 See codes 320, 620 Other genital structures by direct extension or NOS: Broad ligament Cervix Corpus uteri Fallopian tube(s) Genital structures, NOS Ovary(ies) Uterus, NOS Vagina	T2	T2	RE	RE
620	Other genital structures by direction extension or NOS: Broad ligament Fallopian tube(s) Genital structures, NOS Ovary(ies) Vagina	T2	T2	RE	RE
700	OBSOLETE DATA RETAINED AND REVIEWED V0203 See codes 320, 720 Other genital structures, by metastasis: Broad ligament Cervix Corpus uteri Fallopian tube(s) Genital structures, NOS Ovary(ies) Uterus, NOS Vagina	T2	T2	D	D
720	Other genital structures by metastasis: Broad ligament Cervix Fallopian tube(s) Genital structures, NOS Ovary(ies) Vagina	T2	T2	D	D
800	Further contiguous extension	T2	T2	D	D
810	FIGO Stage IIA	T2	T2	RE	RE
820	FIGO Stage IIB	T2	T2	RE	RE
850	FIGO Stage II [NOS]	T2	T2	RE	RE
950	No evidence of primary tumor	T0	T0	U	U
999	Unknown; extension not stated Primary tumor cannot be assessed Not documented in patient record	TX	TX	U	U