CS Extension
Notes
**Note 1**: AJCC considers "in situ carcinoma of ovary" an impossible diagnosis. Any case so coded will be mapped to an unknown AJCC stage and an in situ Summary Stage. **Note 2**: AJCC TNM values correspond to the stages accepted by the Federation Internationale de Gynecologie et d'Obstetrique (FIGO), and FIGO stages are included for coding where no more specific information is available in the record. When both FIGO stage and extension detail are available, record the code with extension detail in preference to a statement of FIGO stage. Note that FIGO uses a single stage value which corresponds to different groupings of T, N, and M values. 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. If FIGO Stage IIIC is specified but it is unknown whether it is based on extension or lymph nodes, code to CS Lymoh Nodes **Note 3**: T1 and T2 tumors with malignant ascites are categorized as T1c and T2c (FIGO Stages IC and IIC), respectively. Ascites, NOS is considered negative. **Note 4**: Both extension to and discontinuous metastasis to any of the following pelvic organs are included in the T2 category (FIGO Stage II) and coded in the range 500-650: adnexa, NOS; bladder and bladder serosa; broad ligament (mesovarium); cul de sac; fallopian tubes; parametrium; pelvic peritoneum; pelvic wall; rectosigmoid; rectum; sigmoid colon; sigmoid mesentery; pelvic ureter; uterus and uterine serosa. **Note 5**: Peritoneal implants outside the pelvis (codes 700-730) must be microscopically confirmed. Peritoneal implants may also be called seeding, salting, talcum powder appearance, or studding. **Note 6**: If implants are mentioned, determine whether they are in the pelvis or in the abdomen and code appropriately (600-650) or (700-730). If the location is not specified, use code 750. **Note 7**: Both extension to and discontinuous metastasis to any of the following abdominal organs by way of peritoneal seeding or implants are included in the T3 category (FIGO Stage III) and coded in the range 700-750: abdominal mesentery; diaphragm; gallbladder; infracolic omentum; kidneys; large intestine except rectum, rectosigmoid, and sigmoid colon; liver (peritoneal surface); omentum; pancreas; pericolic gutter; peritoneum, NOS; small intestine; spleen; stomach; and ureters outside pelvis. Residual tumor in any of these organs would be considered FIGO III and coded in the 700-750 range below and in CS Site-Specific Factors 3 and 4. (Hematogenous metastases are included in M1 (FIGO Stage IV) disease.) **Note 8**: Parenchymal liver nodules are coded in CS Mets at DX. **Note 9**: Since "cancer cells in ascites or in peritoneal washings" was not specifically categorized in the 1977 Summary Staging Guide, it is unclear to which stage previous cases may have been coded. **Note 10**: In some registries benign/borderline ovarian tumors are reportable by agreement. If the tumor being reported is benign or borderline, code CS Extension to 999.| Code | Description | AJCC 7 T | AJCC 6 T | Summary Stage 1977 T | Summary Stage 2000 T |
|---|---|---|---|---|---|
| 000 | In situ, intraepithelial, noninvasive, preinvasive | TX | TX | IS | IS |
| 100 | Tumor limited to one ovary, capsule intact, no tumor on ovarian surface, no malignant cells in ascites or peritoneal washings |
T1a | T1a | L | L |
| 150 | FIGO Stage IA | T1a | T1a | L | L |
| 200 | Tumor limited to both ovaries, capsule(s) intact, no tumor on ovarian surface, no malignant cells in ascites or peritoneal washings |
T1b | T1b | L | L |
| 250 | FIGO Stage IB | T1b | T1b | L | L |
| 300 | OBSOLETE DATA RETAINED V0204 See codes 310 and 460 Tumor limited to ovaries, unknown if capsule(s) ruptured or if one or both ovaries involved Localized, NOS FIGO Stage I, NOS |
T1NOS | T1NOS | L | L |
| 310 | Tumor limited to ovaries, unknown if capsule(s) ruptured or if one or both ovaries involved Localized, NOS |
T1NOS | T1NOS | L | L |
| 350 | Tumor limited to ovary(ies), capsule(s) ruptured | T1c | T1c | L | RE |
| 360 | Tumor on ovarian surface | T1c | T1c | D | RE |
| 410 | Tumor limited to ovary(ies) WITH malignant cells in ascites or peritoneal washings |
T1c | T1c | RE | RE |
| 430 | 410 + 350 Tumor limited to ovary(ies) WITH malignant cells in ascites or peritoneal washings plus capsule(s) ruptured |
T1c | T1c | RE | RE |
| 440 | (360) + any of (350 or 410) Tumor on ovarian surface plus capsul(es) ruptured or WITH malignant cells in ascites or peritoneal washings |
T1c | T1c | D | RE |
| 450 | FIGO Stage IC | T1c | T1c | RE | RE |
| 460 | FIGO Stage I, NOS | T1NOS | T1NOS | L | L |
| 500 | Extension to or implants on (but no malignant cells in ascites or peritoneal washings): Adnexa, ipsilateral or NOS Fallopian tube(s), ipsilateral or NOS |
T2a | T2a | RE | RE |
| 510 | 500 + 360 Extension to structures in 500 (but no malignant cells in ascites or peritoneal washings) plus tumor on ovarian surface |
T2a | T2a | RE | RE |
| 520 | Extension to or implants on (but no malignant cells in ascites or peritoneal washings): Adnexa, contralateral Fallopian tube(s), contralateral Uterus |
T2a | T2a | D | RE |
| 550 | FIGO Stage IIA | T2a | T2a | RE | RE |
| 600 | Extension to or implants on other pelvic structures (but no malignant cells in ascites or peritoneal washings): Pelvic tissue: Adjacent peritoneum Ligament(s): Broad, ipsilateral, NOS Ovarian Round Suspensory Mesovarium, ipsilateral, NOS Pelvic wall |
T2b | T2b | RE | RE |
| 605 | 600 + 360 Extension to structures in 600 (but no malignant cells in ascites or peritoneal washings) plus tumor on ovarian surface |
T2b | T2b | D | RE |
| 610 | Extension to or implants on other pelvic structures (but no malignant cells in ascites or peritoneal washings): Broad ligament(s), contralateral Mesovarium, contralateral Bladder , Bladder serosa Cul de sac Parametrium Rectosigmoid, Rectum Sigmoid colon Sigmoid mesentery Ureter (pelvic portion) |
T2b | T2b | D | RE |
| 615 | FIGO Stage IIB | T2b | T2b | RE | RE |
| 620 | Any structure in 500 and /or 600 WITH malignant cells in ascites or peritoneal washings |
T2c | T2c | RE | RE |
| 625 | 620 + 360 Any structure in 500 and/or 600 WITH malignant cells in ascites or peritoneal washings plus tumor on ovarian surface |
T2c | T2c | D | RE |
| 630 | OBSOLETE DATA REVIEWED AND CHANGED V0203 See codes 620, 625, 635 (520 and/or 600) WITH malignant cells in ascites or peritoneal washings |
ERROR: | ERROR: | ERROR: | ERROR: |
| 635 | Any structure in 520 WITH malignant cells in ascites or peritoneal washings |
T2c | T2c | D | RE |
| 640 | Any structure in 610 WITH malignant cells in ascites or peritoneal washings |
T2c | T2c | D | RE |
| 645 | FIGO Stage IIC | T2c | T2c | D | RE |
| 650 | Tumor involves one or both ovaries with pelvic extension, NOS |
T2NOS | T2NOS | RE | RE |
| 660 | FIGO Stage II [NOS] | T2NOS | T2NOS | RE | RE |
| 700 | Microscopic peritoneal implants beyond pelvis, including peritoneal surface/capsule of liver FIGO Stage IIIA (See Note 7) |
T3a | T3a | D | D |
| 710 | Macroscopic peritoneal implants beyond pelvis, less than or equal to 2 cm in diameter, including peritoneal surface of liver FIGO Stage IIIB (See Note 7) |
T3b | T3b | D | D |
| 720 | Peritoneal implants beyond pelvis, greater than 2 cm in diameter, including peritoneal surface of liver (liver capsule) FIGO Stage IIIC (based on tumor extension) (See Notes 2, 7) |
T3c | T3c | D | D |
| 730 | Tumor involves one or both ovaries with microscopically confirmed peritoneal metastasis outside the pelvis, NOS (See Note 7) |
T3NOS | T3NOS | D | D |
| 750 | Peritoneal implants, NOS (See Note 7) |
T3NOS | T3NOS | D | D |
| 780 | FIGO Stage III [NOS] | T3NOS | T3NOS | D | D |
| 800 | Further contiguous 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 Not documented in patient record |
TX | TX | U | U |