CS Extension

Notes

**Note 1**: When both 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 IIIC is assigned based on tumor extension and/or regional lymph node involvement. Code CS Extension based on a physician's statement of FIGO Stage IIIC only if it is known that the stage value is assigned because of tumor extension. **Note 2**: FIGO no longer includes a Stage 0 (Tis) for this schema. **Note 3**: Liver capsule metastases are coded in CS Extension; liver parenchymal metastases are coded in CS Mets at DX. **Note 4**: Both extension to and discontinuous metastasis to any of the following pelvic organs are considered FIGO Stage II and coded in the range 400-660: adnexa, NOS; bladder, bladder serosa; broad ligament (mesovarium); cul de sac; contralateral fallopian tube; parametrium; pelvic peritoneum; pelvic wall; rectum; sigmoid colon; sigmoid mesentery; ureter; uterus; uterine serosa. **Note 5**: Both extension to and discontinuous metastasis to any of the following abdominal organs are considered FIGO Stage III and coded in the range 685-795: abdominal mesentery; diaphragm; gallbladder; infracolic omentum; kidneys; large intestine except rectum and sigmoid colon; liver (peritoneal surface); omentum; pancreas; pericolic gutter; peritoneum, NOS; small intestine; spleen; stomach; ureters. **Note 6**: From the AJCC Manual 7th Edition (page 430): "It may be preferable to classify a patient as TX (primary tumor cannot be assessed) if inadequate staging biopsies and/or a lack of peritoneal cytology make it inaccurate to classify the patient with confidence as early stage (Stage T3a/IIIA has not been excluded by adequate staging biopsies)." **Note 7**: Since "malignant ascites or malignant peritoneal washings" was not specifically categorized in the 1977 Summary Staging Guide, it is unclear to which stage pre-2001 cases may have been coded.

Code	Description	AJCC 7 T	AJCC 6 T	Summary Stage 1977 T	Summary Stage 2000 T
000	In situ, intraepithelial, noninvasive Limited to tubal mucosa	Tis	Tis	IS	IS
100	OBSOLETE DATA RETAINED AND REVIEWED V0203 See codes 200, 320 Confined to fallopian tube, NOS FIGO Stage I	T1NOS	T1NOS	L	L
110	Confined to one fallopian tube WITHOUT penetrating serosal surface WITHOUT ascites FIGO Stage IA	T1a	T1a	L	L
120	Confined to both fallopian tubes WITHOUT penetrating serosal surface WITHOUT ascites FIGO Stage IB	T1b	T1b	L	L
130	Extension onto or through tubal serosa Malignant ascites Malignant peritoneal washings FIGO Stage IC	T1c	T1c	L	L
200	Confined to fallopian tube, NOS	T1NOS	T1NOS	L	L
300	OBSOLETE DATA RETAINED AND REVIEWED V0203 See codes 310, 320 Localized, NOS FIGO Stage I	T1NOS	T1NOS	L	L
310	Localized, NOS	T1NOS	T1NOS	L	L
320	FIGO Stage I [NOS]	T1NOS	T1NOS	L	L
350	OBSOLETE DATA RETAINED AND REVIEWED V0203 See code 655, 670 Pelvic extension, NOS with no malignant cells in ascites or peritoneal washings FIGO Stage II	T2NOS	T2NOS	RE	RE
400	Extension or metastasis to: Corpus uteri Ovary, ipsilateral Uterus, NOS WITHOUT malignant cells in ascites or peritoneal washings	T2a	T2a	RE	RE
450	Extension or metastasis to: Ovary, contralateral WITHOUT malignant cells in ascites or peritoneal washings	T2a	T2a	D	RE
460	FIGO Stage IIA	T2a	T2a	RE	RE
500	OBSOLETE DATA RETAINED AND REVIEWED V0203 See codes 510, 620, and 658 Extension or metastasis to (but no malignant cells in ascites or peritoneal washings): Broad ligament, ipsilateral Mesosalpinx, ipsilateral Adjacent peritoneum FIGO Stage IIB	T2b	T2b	RE	RE
510	Extension or metastasis to: Broad ligament, ipsilateral Mesosalpinx, ipsilateral Adjacent peritoneum WITHOUT malignant cells in ascites or peritoneal washings	T2b	T2b	RE	RE
600	OBSOLETE DATA RETAINED V0200 See codes 450, 460 Ovary, contralateral (but no malignant cells in ascites or peritoneal washings) FIGO Stage IIA	ERROR:	T2a	D	RE
610	OBSOLETE DATA RETAINED V0200 (600) + (500)	ERROR:	T2b	D	RE
620	51 0 + 450 Extension to any site in 510 plus extension to contralateral ovary WITHOUT malignant cells in ascites or peritoneal washings	T2b	T2b	D	RE
650	OBSOLETE DATA RETAINED AND REVIEWED V0203 See codes 652, 658 Extension or metastasis to (but no malignant cells in ascites or peritoneal washings): Broad ligament, contralateral Cul de sac (rectouterine pouch) Mesosalpinx, contralateral Rectosigmoid Sigmoid FIGO IIB	T2b	T2b	D	RE
652	Extension or metastasis to (but no malignant cells in ascites or peritoneal washings): Broad ligament, contralateral Cul de sac (rectouterine pouch) Mesosalpinx, contralateral Rectosigmoid Sigmoid	T2b	T2b	D	RE
655	Pelvic extension, NOS with no malignant cells in ascites or peritoneal washings	T2NOS	T2NOS	RE	RE
658	FIGO Stage IIB	T2b	T2b	RE	RE
660	Pelvic extension (codes 400-655) WITH malignant cells in ascites or peritoneal washings FIGO Stage IIC	T2c	T2c	D	D
670	FIGO Stage II [NOS]	T2NOS	T2NOS	RE	RE
680	OBSOLETE DATA RETAINED AND REVIEWED V0203 See code 790, 820 Peritoneal implants or metastasis (size of metastases not stated; unknown if microscopic or macroscopic) Omentum Small intestine FIGO Stage III	T3NOS	T3NOS	D	D
685	Microscopic peritoneal implants or metastasis: Omentum Small intestine	T3a	T3a	D	RE
688	685 + 660	T3a	T3a	D	D
690	OBSOLETE DATA RETAINED AND REVIEWED V0203 See codes 685, 698 Microscopic peritoneal implants or metastasis: Omentum Small intestine FIGO Stage IIIA	T3a	T3a	D	D
695	Microscopic peritoneal metastasis outside the pelvis, excluding organs in code 685 (See Note 5)	T3a	T3a	D	D
698	FIGO Stage IIIA	T3a	T3a	D	D
700	OBSOLETE DATA CONVERTED V0102 See code 680 Extension or metastasis to: Omentum FIGO Stage IIB	ERROR:	ERROR:	ERROR:	ERROR:
710	OBSOLETE DATA CONVERTED V0102 See code 660 Pelvic extension (codes 350-700) with malignant cells in ascites or peritoneal washings FIGO Stage IIC	ERROR:	ERROR:	ERROR:	ERROR:
720	OBSOLETE DATA RETAINED AND REVIEWED V0203 See codes 722, 723, and 728 Macroscopic peritoneal implants or metastasis less than or equal to 2cm: Omentum Small intestine FIGO Stage IIIB	T3b	T3b	D	D
722	Macroscopic peritoneal implants or metastasis less than or equal to 2cm: Omentum Small intestine	T3b	T3b	D	RE
723	722 + 695	T3b	T3b	D	D
725	Macroscopic peritoneal metastasis less than or equal to 2 cm outside the pelvis, excluding organs in code 722 (See Note 5)	T3b	T3b	D	D
728	FIGO Stage IIIB based on extension	T3b	T3b	D	D
730	OBSOLETE DATA RETAINED AND REVIEWED V0203 See codes 732, 733, and 740 Macroscopic peritoneal implants or metastasis greater than 2cm: Omentum Small intestine FIGO Stage IIIC	T3c	T3c	D	RE
732	Macroscopic peritoneal implants or metastasis greater than 2cm: Omentum Small intestine	T3c	T3c	D	RE
733	732 + 725	T3c	T3c	D	D
735	Macroscopic peritoneal implants or metastases greater than 2 cm outside the pelvis, excluding organs in code 732 (See Note 5)	T3c	T3c	D	D
740	FIGO Stage IIIC based on extension	T3c	T3c	D	RE
750	OBSOLETE DATA CONVERTED V0203 See code 795 Peritoneal implants outside the pelvis, NOS (size of metastases not stated; unknown if microscopic or macroscopic), except code 680 (See Note 5)	ERROR:	ERROR:	ERROR:	ERROR:
760	OBSOLETE DATA RETAINED AND REVIEWED V0203 See codes 695 and 698 Microscopic peritoneal metastasis outside the pelvis, except code 690 (See Note 5) FIGO Stage IIIA	T3a	T3a	D	D
770	OBSOLETE DATA RETAINED AND REVIEWED V0203 See codes 725 and 728 Macroscopic peritoneal metastasis less than or equal to 2 cm outside the pelvis, except code 720 (See Note 5) FIGO Stage IIIB	T3b	T3b	D	D
780	OBSOLETE DATA RETAINED AND REVIEWED V0200 See codes 735 and 740 Peritoneal metastases greater than 2 cm, except code 730 (See Note 5) FIGO Stage IIIC	T3c	T3c	D	D
790	Peritoneal implants or metastasis outside the pelvis, size of metastasis not stated, unknown if microscopic or macroscopic: Omentum Small intestine	T3NOS	T3NOS	D	RE
795	Peritoneal implants or metastases outside the pelvis, size of metastasis not stated, unknown if microscopic or macroscopic, excluding organs in code 790 (See Note 5)	T3NOS	T3NOS	D	D
800	OBSOLETE DATA RETAINED AND REVIEWED V0203 See codes 810, 820 Further contiguous extension FIGO Stage III [NOS]	T3NOS	T3NOS	D	D
810	Further contiguous extension	T3NOS	T3NOS	D	D
820	FIGO Stage III [NOS] based on extension	T3NOS	T3NOS	D	D
950	No evidence of primary tumor	T0	T0	U	U
999	Unknown; extension not stated Primary tumor cannot be assessed (See Note 6) Not documented in patient record	TX	TX	U	U