CS Extension

This input is used in derivation

Notes

**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. FIGO Stage IVA is assigned based on tumor extension and/or regional lymph node involvement. Code CS Extension based on a physician's statement of FIGO Stage IVA if it is based on tumor extension or the basis is unknown. **Note 2**: FIGO no longer includes Stage 0 (Tis) for this site. **Note 3**: FIGO Stage I, IA and IB are defined by size of tumor, involvement of vulva OR vulva and perineum, and depth of stromal invasion. **Note 4**: The depth of invasion is defined as the measurement of the tumor from the epithelial-stromal junction of the adjacent most superficial dermal papilla to the deepest point of invasion. **Note 5**: Use codes 110, and 120 in preference to 125 and 125 in preference to code 200.

Default

999

NAACCR Item

NAACCR #2810

Code	Description	AJCC 7 T	AJCC 6 T	Summary Stage 1977 T	Summary Stage 2000 T
000	In situ, intraepidermal, intraepithelial, preinvasive, noninvasive Bowen disease	Tis	Tis	IS	IS
100	OBSOLETE DATA CONVERTED V0203 See code 200 Invasive cancer (no stromal invasion) confined to: Musculature Submucosa Vulva including skin	ERROR:	ERROR:	ERROR:	ERROR:
105	OBSOLETE DATA CONVERTED V0203 See code 125 Vulva only: Stromal invasion but level of invasion in mm not stated	ERROR:	ERROR:	ERROR:	ERROR:
110	Vulva only: Stromal invasion less than or equal to 1 mm	Extension Size AJCC7	Extension Size AJCC6	L	L
120	Vulva only: Stromal invasion greater than 1 mm	T1b	Extension Size AJCC6	L	L
125	Vulva only: Stromal invasion but depth of invasion in mm not stated	Extension Size AJCC7	Extension Size AJCC6	L	L
200	Invasive carcinoma confined to: Musculature Submucosa Vulva including skin	Extension Size AJCC7	Extension Size AJCC6	L	L
300	Localized, NOS	Extension Size AJCC7	Extension Size AJCC6	L	L
320	OBSOLETE DATA CONVERTED V0203 See code 470 FIGO Stage I [NOS]	ERROR:	ERROR:	ERROR:	ERROR:
330	OBSOLETE DATA CONVERTED V0203 See code 450 FIGO Stage IA	ERROR:	ERROR:	ERROR:	ERROR:
340	OBSOLETE DATA CONVERTED V0203 See code 460 FIGO Stage IB	ERROR:	ERROR:	ERROR:	ERROR:
400	OBSOLETE DATA CONVERTED V0203 See code 425 Vulva and perineum, level of invasion in mm not stated	ERROR:	ERROR:	ERROR:	ERROR:
410	Vulva and perineum: Stromal invasion less than or equal to 1 mm	Extension Size AJCC7	Extension Size AJCC6	RE	RE
420	Vulva and perineum: Stromal invasion greater than 1 mm	T1b	Extension Size AJCC6	RE	RE
425	Vulva and perineum: Stromal invasion but depth of invasion in millimeters not stated	Extension Size AJCC7	Extension Size AJCC6	RE	RE
450	FIGO Stage IA	Extension Size AJCC7	Extension Size AJCC6	L	L
460	FIGO Stage IB	T1b	Extension Size AJCC6	L	L
470	FIGO Stage I [NOS]	Extension Size AJCC7	Extension Size AJCC6	L	L
600	OBSOLETE DATA RETAINED V0200 Anus Perianal skin Urethra (See code 750 for upper urethral mucosa) Vagina FIGO Stage III	ERROR:	T3	RE	RE
605	Anus Perianal skin Urethra: Lower/distal one-third Urethra, NOS (See code 750 for upper urethra)	T2	T3	RE	RE
610	Vagina (lower/distal 1/3 vagina)	T2	T3	RE	RE
612	Vagina NOS	T2	T3	RE	RE
615	FIGO Stage II	T2	T2	RE	RE
618	Vagina: Upper/proximal two-thirds	T3	T3	RE	RE
620	Bladder wall or bladder, NOS excluding mucosa Rectal wall or rectum, NOS excluding mucosa	T3	T3	D	RE
700	Perineal body Rectal mucosa	T3	T4	D	D
750	OBSOLETE DATA RETAINED V0200 Bladder mucosa Fixed to pubic bone Upper urethral mucosa FIGO Stage IVA	ERROR:	T4	D	RE
760	Bladder mucosa Fixed to pubic bone Urethra Upper/proximal two-thirds	T3	T4	D	D
800	Further contiguous extension	T3	T4	D	D
850	FIGO Stage IVA based on extension or unknown whether based on extension or nodes	T3	T4	D	D
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

- For CS Extension codes 110, 125-410, 425-450, and 470 ONLY, the T category for AJCC 7 staging is assigned based on the value of CS Tumor Size and CS Extension, as shown in the Extension Size AJCC 7 Table for this schema. - For CS Extension codes 110-470 ONLY, the T category for AJCC 6 staging is assigned based on the value of CS Tumor Size and CS Extension, as shown in the Extension Size AJCC 6 Table for this schema.