Cervix - CS Extension

Note 1: When both FIGO stage and extension detail are available, record the code with extension detail in preference to a statement of FIGO stage.
Note 2: FIGO Stage IIIB is assigned based on tumor extension and/or regional lymph node involvement; FIGO Stage IV, NOS is assigned based on tumor extension and/or metastasis. Code CS Extension based on a physician's statement of FIGO Stage IIIB or FIGO Stage IV [NOS] only if it is known that the stage value is assigned because of tumor extension. Code a statement of FIGO Stage IIIB in CS Lymph Nodes if unknown if based on extension. Code a stage of FIGO Stage IV [NOS] in CS Mets at DX if unknown if based on extension.
Note 3: FIGO no longer includes Stage 0 (Tis) for this site.
Note 4: All macroscopically visible lesions, even with superficial invasion, are assigned toT1b/FIGO Stage IB.
Note 5: Involvement of the anterior and/or posterior septum, the tissue between the vagina and bladder and between the vagina and rectum, is coded as involvement of the vaginal wall.

^ For CS Extension codes 200-310, 380-450, and 550 ONLY, the T category is assigned based on CS Tumor Size, as shown in the Extension Size AJCC 7 Table for for this schema.
* For CS Extension codes 200-310, and 380-390 ONLY, the T category is assigned based on CS Tumor Size, as shown in the Extension Size AJCC 6 Table for this schema.

Code	Description	TNM 7 Map	TNM 6 Map	SS77 Map	SS2000 Map
000	In situ, intraepithelial, noninvasive, preinvasive; Cancer in situ WITH endocervical gland involvement (See Note 3)	Tis	Tis	IS	IS
010	Cervical intraepithelial neoplasia (CIN) Grade III	Tis	Tis	IS	IS
110	Minimal microscopic stromal invasion less than or equal to 3 mm in depth (measured from the base of the epithelium) and less than or equal to 7 mm in horizontal spread FIGO Stage IA1	T1a1	T1a1	L	L
120	Microscopic stromal invasion greater than 3 mm and less than or equal to 5 mm in depth, (measured from the base of the epithelium) and less than or equal to 7 mm in horizontal spread FIGO Stage IA2	T1a2	T1a2	L	L
135	Invasive carcinoma confined to cervix, microscopic size of stromal invasion and horizontal spread not specified	T1aNOS	T1aNOS	L	L
140	FIGO Stage IA [NOS]	T1aNOS	T1aNOS	L	L
200	Invasive carcinoma confined to cervix, tumor measurements greater than specified in code 120 FIGO Stage IB	^	*	L	L
210	FIGO Stage IB1	^	*	L	L
220	FIGO Stage IB2	^	*	L	L
250	Invasive carcinoma confined to cervix, clinically visible lesion	^	*	L	L
300	Localized, NOS Confined to cervix uteri or uterus, NOS, except corpus uteri, NOS (Not clinically visible or unknown if clinically visible.)	^	*	L	L
310	FIGO Stage I [NOS]	^	*	L	L
350	Corpus uteri, NOS with no other information on extension	T1NOS	T1NOS	RE	RE
360	350 + 110	T1a1	T1a1	RE	RE
370	350 + 120	T1a2	T1a2	RE	RE
380	350 + (200 or 250)	^	*	RE	RE
390	350 + (300 or 310)	^	*	RE	RE
400	Extension to: Cul de sac (rectouterine pouch) Upper two-thirds of vagina including fornices Vagina, NOS Vaginal wall, NOS WITHOUT parametrial invasion	^	T2a	RE	RE
410	Extension beyond uterus, NOS but not to pelvic wall (excluding lower third of vagina) WITHOUT parametrial invasion	^	T2a	RE	RE
420	FIGO Stage IIA1	^	T2a	RE	RE
440	FIGO Stage IIA2	^	T2a	RE	RE
450	FIGO Stage IIA [NOS]	^	T2a	RE	RE
500	Extension to: Ligament(s): Broad Cardinal Uterosacral Parametrium (paracervical soft tissue) FIGO Stage IIB	T2b	T2b	RE	RE
550	FIGO Stage II [NOS]	^	T2NOS	RE	RE
600	OBSOLETE DATA RETAINED AND REVIEWED V0203 See codes 605 and 625 Extension to: Bladder wall Bladder, NOS excluding mucosa Bullous edema of bladder mucosa Lower third of vagina Rectal wall Rectum, NOS excluding mucosa FIGO Stage IIIA	T3a	T3a	RE	RE
605	Extension to: Bladder wall Bladder, NOS excluding mucosa Bullous edema of bladder mucosa Lower third of vagina Rectal wall Rectum, NOS excluding mucosa	T3a	T3a	RE	RE
620	OBSOLETE DATA RETAINED AND REVIEWED V0203 See codes 622 and 625 Extension to: Ureter, intra- and extramural Vulva FIGO Stage IIIA	T3a	T3a	D	RE
622	Extension to: Ureter, intra- and extramural Vulva	T3a	T3a	D	RE
625	FIGO Stage IIIA	T3a	T3a	RE	RE
630	OBSOLETE DATA RETAINED AND REVIEWED V0203 See codes 635 and 660 Tumor causes hydronephrosis or nonfunctioning kidney FIGO Stage IIIB	T3b	T3b	RE	RE
635	Tumor causes hydronephrosis or nonfunctioning kidney	T3b	T3b	RE	RE
650	OBSOLETE DATA RETAINED AND REVIEWED V0203 See codes 655 and 660 Extension to pelvic wall(s) (Described clinically as "frozen pelvis", NOS) FIGO Stage IIIB	T3b	T3b	D	RE
655	Extension to pelvic wall(s) Described clinically as frozen pelvis	T3b	T3b	D	RE
660	FIGO Stage IIIB based on extension	T3b	T3b	RE	RE
680	OBSOLETE DATA RETAINED AND REVIEWED V0203 See codes 685 and 690 Extension to: Fallopian tube(s) Ovary(ies) Urethra FIGO Stage III [NOS]	T3NOS	T3NOS	D	RE
685	Extension to: Fallopian tube(s) Ovary(ies) Urethra	T3NOS	T3NOS	D	RE
690	FIGO Stage III [NOS]	T3NOS	T3NOS	D	RE
700	Extension to rectal or bladder mucosa (Note: for bullous edema of bladder mucosa, see code 600-605)	T4	T4	D	D
800	Further contiguous extension beyond true pelvis Sigmoid colon Small intestine	T4	T4	D	D
850	FIGO Stage IVA	T4	T4	D	D
860	FIGO Stage IV [NOS] based on extension	T4	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