CS Extension

Notes

**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.
Code Description AJCC 7 T AJCC 6 T Summary Stage 1977 T Summary Stage 2000 T
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		 Extension Size AJCC7 CS Extension Size Table for AJCC 6th L L
210 FIGO Stage IB1 Extension Size AJCC7 CS Extension Size Table for AJCC 6th L L
220 FIGO Stage IB2 Extension Size AJCC7 CS Extension Size Table for AJCC 6th L L
250 Invasive carcinoma confined to cervix, clinically visible lesion Extension Size AJCC7 CS Extension Size Table for AJCC 6th L L
300 Localized, NOS
Confined to cervix uteri or uterus, NOS, except corpus uteri, NOS
(Not clinically visible or unknown if clinically visible.)		 Extension Size AJCC7 CS Extension Size Table for AJCC 6th L L
310 FIGO Stage I [NOS] Extension Size AJCC7 CS Extension Size Table for AJCC 6th 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) Extension Size AJCC7 CS Extension Size Table for AJCC 6th RE RE
390 350 + (300 or 310) Extension Size AJCC7 CS Extension Size Table for AJCC 6th 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		 Extension Size AJCC7 T2a RE RE
410 Extension beyond uterus, NOS but not to pelvic wall (excluding lower third of vagina)
WITHOUT parametrial invasion		 Extension Size AJCC7 T2a RE RE
420 FIGO Stage IIA1 Extension Size AJCC7 T2a RE RE
440 FIGO Stage IIA2 Extension Size AJCC7 T2a RE RE
450 FIGO Stage IIA [NOS] Extension Size AJCC7 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] Extension Size AJCC7 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
- 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.