CS Extension
Notes
**Note 1**: Adenosarcomas of the corpus uteri were not staged in AJCC 6. **Note 2**: When both FIGO stage and extension detail are available, record the code with extension detail in preference to a statement of FIGO stage. **Note 3**: FIGO and AJCC 7 stage do not include Tis for this site and histology. Any cases with a CS Extension code of 000 will derive TX for AJCC 7 staging, though In Situ will be derived Summary Stage. **Note 4**: 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 IV, NOS only if it is known that the stage value is assigned because of tumor extension. **Note 5**: Positive cytology should be reported in CS Site-Specific Factor 2. It is not a staging element for AJCC 7 staging, but is a staging element for Summary Stage. Since "cancer cells in ascites or in peritoneal washings" was not specifically categorized in the 1977 Summary Staging Guide, is unclear to which stage previous cases may have been coded in that staging system. **Note 6**: According to the AJCC, extension to the bowel or bladder mucosa must be proven by biopsy in order to rule out bullous edema.Code | Description | AJCC 7 T | AJCC 6 T | Summary Stage 1977 T | Summary Stage 2000 T |
---|---|---|---|---|---|
000 | In situ, intraepithelial, noninvasive, preinvasive | TX | NA | IS | IS |
100 | Invasive cancer confined to corpus uteri | T1NOS | NA | Extension Cytology Summary Stage | Extension Cytology Summary Stage |
110 | Confined to endometrium (Glandular, stromal or both) |
T1a | NA | Extension Cytology Summary Stage | Extension Cytology Summary Stage |
113 | Confined to endocervix (Glandular, stromal, or both) |
T1a | NA | RE | RE |
115 | FIGO Stage IA | T1a | NA | Extension Cytology Summary Stage | Extension Cytology Summary Stage |
120 | Tumor invades less than one-half of myometrium Invasion of inner half of myometrium |
T1b | NA | Extension Cytology Summary Stage | Extension Cytology Summary Stage |
123 | Invasion of less than one-half of myometrium WITH involvement of endocervix |
T1b | NA | RE | RE |
125 | FIGO Stage IB | T1b | NA | Extension Cytology Summary Stage | Extension Cytology Summary Stage |
130 | Tumor invades one-half or more of myometrium Invasion of outer half of myometrium |
T1c | NA | Extension Cytology Summary Stage | Extension Cytology Summary Stage |
133 | Invasion of one-half or more of myometrium WITH involvement of endocervix |
T1c | NA | RE | RE |
135 | FIGO Stage IC | T1c | NA | Extension Cytology Summary Stage | Extension Cytology Summary Stage |
140 | Invasion of myometrium, NOS | T1NOS | NA | Extension Cytology Summary Stage | Extension Cytology Summary Stage |
143 | Invasion of myometrium, NOS WITH involvement of endocervix |
T1NOS | NA | RE | RE |
160 | Tunica serosa of the visceral peritoneum (serosa covering the corpus) | T1NOS | NA | Extension Cytology Summary Stage | Extension Cytology Summary Stage |
170 | FIGO Stage I [NOS] | T1NOS | NA | Extension Cytology Summary Stage | Extension Cytology Summary Stage |
400 | Localized, NOS | T1NOS | NA | Extension Cytology Summary Stage | Extension Cytology Summary Stage |
500 | Cervix uteri, NOS, but not beyond uterus | T1NOS | NA | RE | RE |
510 | OBSOLETE DATA RETAINED AND REVIEWED V0203 See codes 113, 123, 133, and 143 Endocervical glandular involvement only |
T1a | NA | RE | RE |
520 | OBSOLETE DATA RETAINED AND REVIEWED V0203 See codes 113, 123, 133, and 143 Cervical stromal invasion |
T1a | NA | RE | RE |
550 | Adnexal involvement, NOS Extension or metastasis within true pelvis: Adnexa Fallopian tube(s) Ligaments: Broad Round Uterosacral Ovary(ies) Parametrium Visceral peritoneum of pelvic organs excluding serosa of corpus uteri |
T2a | NA | RE | RE |
600 | OBSOLETE DATA RETAINED AND REVIEWED V0203 See codes 160, 550, 655, 665, and 688 Adnexal involvement, NOS Extension or metastasis within true pelvis: Adnexa Fallopian tube(s) Ligaments: Broad, round, uterosacral Ovary(ies) Parametrium Pelvic serosa Tunica serosa (parietal lining of the pelvic or abdominal cavity) |
T2a | NA | RE | RE |
605 | FIGO Stage IIA | T2a | NA | RE | RE |
610 | OBSOLETE DATA RETAINED V0200 See Note 4 and CS Site-Specific Factor 2 Cancer cells in ascites Cancer cells in peritoneal washings FIGO Stage IIIA |
ERROR: | NA | RE | RE |
620 | OBSOLETE DATA CONVERTED V0203 See code 645 Ureter Vulva |
ERROR: | ERROR: | ERROR: | ERROR: |
640 | Extension or metastasis to vagina | T2b | NA | D | RE |
645 | Extension or metastasis to: Ureter Vulva |
T2b | NA | D | RE |
650 | OBSOLETE DATA RETAINED AND REVIEWED V0203 See codes 655 and 662 Extension or metastasis to pelvic wall(s) Described clinically as "frozen pelvis", NOS |
T2b | NA | RE | RE |
655 | Extension or metastasis to: Pelvic wall(s) Parietal serosa of pelvic cavity |
T2b | NA | RE | RE |
660 | OBSOLETE DATA RETAINED AND REVIEWED V0203 See codes 705 and 708 Extension or metastasis to: Bladder wall Bladder, NOS excluding mucosa Rectal wall Rectum, NOS excluding mucosa |
T4 | NA | RE | RE |
662 | Described clinically as "frozen pelvis", NOS | T2b | NA | D | RE |
663 | (655 or 662) + (640 or 645) | T2b | NA | D | RE |
665 | Extension or metastasis to: Cul de sac (rectouterine pouch) |
T2b | NA | RE | RE |
670 | OBSOLETE DATA RETAINED AND REVIEWED V0203 See code 663 and 705 [(650) or (660)] and [(620) or (640)] |
T2b | NA | D | RE |
675 | FIGO Stage IIB | T2b | NA | RE | RE |
680 | OBSOLETE DATA CONVERTED V0203 See code 683 FIGO Stage II [NOS] |
ERROR: | ERROR: | ERROR: | ERROR: |
682 | Extension beyond uterus, within pelvis, NOS | T2NOS | NA | RE | RE |
683 | FIGO Stage II [NOS] | T2NOS | NA | RE | RE |
685 | OBSOLETE DATA REVIEWED V0203 See codes 665 and 688 Contiguous extension to abdominal tissues, one of the following sites: Abdominal serosa (peritoneum) Cul de sac Sigmoid colon Small intestine Other abdominal tissues |
T3a | NA | D | D |
688 | Infiltration of abdominal tissues, one of the following sites: Abdominal serosa (visceral or parietal peritoneum of abdomen) Sigmoid colon Small intestine Other abdominal structures |
T3a | NA | D | D |
690 | FIGO Stage IIIA | T3a | NA | D | D |
692 | OBSOLETE DATA REVIEWED V0203 See codes 665 and 693 Contiguous extension to abdominal tissues, more than one site: Abdominal serosa (peritoneum) Cul de sac Sigmoid colon Small intestine Other abdominal tissues |
T3b | NA | D | D |
693 | Infiltration of abdominal tissues in code 688, more than one site | T3b | NA | D | D |
694 | FIGO Stage IIIB | T3b | NA | D | D |
696 | OBSOLETE DATA CONVERTED V0203 See code 699 FIGO Stage III [NOS] |
ERROR: | ERROR: | ERROR: | ERROR: |
698 | Abdominal tissues involvement, NOS | T3NOS | NA | D | D |
699 | FIGO Stage III [NOS] based on extension | T3NOS | NA | D | D |
700 | OBSOLETE DATA CONVERTED V0200 See code 710 Extension to bowel mucosa or bladder mucosa (excluding bullous edema) FIGO Stage IVA FIGO Stage IV, NOS |
ERROR: | ERROR: | ERROR: | ERROR: |
705 | Invasion of: Bladder wall Bladder, NOS excluding mucosa Rectal wall Rectum, NOS excluding mucosa |
T4 | NA | RE | RE |
708 | 705 + (688, 693, or 698) Invasion of organs in code 705 plus infiltration of any abdominal tissues |
T4 | NA | D | D |
710 | OBSOLETE DATA REVIEWED AND CHANGED V0203 See codes 715, 720, and 730 Extension to bowel mucosa or bladder (excluding bullous edema) Note: On conversion of code 700 to 710, code 710 also included FIGO Stage IVA, FIGO Stage IV, NOS |
ERROR: | ERROR: | ERROR: | ERROR: |
715 | Extension to bowel mucosa or bladder (excluding bullous edema) | T4 | NA | D | D |
720 | FIGO Stage IVA | T4 | NA | D | D |
730 | FIGO Stage IV [NOS] based on extension | T4 | NA | D | D |
800 | OBSOLETE DATA RETAINED AND REVIEWED V0203 See codes 665, 688, 693, and 850 Further contiguous extension Abdominal serosa (peritoneum) Cul de sac Sigmoid colon Small intestine (See code 685 and 693 if number of involved sites is reported) |
T3NOS | NA | D | D |
850 | Further contiguous extension | T3NOS | NA | D | D |
950 | No evidence of primary tumor | T0 | NA | U | U |
999 | Unknown; extension not stated Primary tumor cannot be assessed Not documented in patient record |
TX | NA | U | U |