EOD Primary Tumor

Notes

**Note 1:** When both the Federation Internationale de Gynecologie et d'Obstetrique (FIGO) stage and extension information on the primary tumor are available, use the extension information to assign the code in preference to a statement of FIGO stage. **Note 2:** Codes 050, 070, and 80 are used for the following in situ histology (behavior /2) only * High-grade serous tubal intraepithelial carcinoma (STIC) (8441/2) **Note 3:** Tumors in codes 100-250 with malignant ascites are coded 300. * Ascites, NOS should be excluded as a staging element **Note 4:** If there is involvement of the ovary (including surgical spill and/or capsule rupture) with no further evidence of extension and the physician states that this is a fallopian tube primary, code 400. **Note 5:** Both extension to and/or discontinuous metastasis to any of the following pelvic organs are included in code 450 - Adjacent (pelvic) peritoneum - Bladder - Bladder serosa - Cul de sac (rectouterine pouch) - Ligament(s) (broad, ovarian, round, suspensory) - Mesosalpinx (Meosvarium) - Parametrium - Pelvic wall - Rectosigmoid - Rectum - Sigmoid colon (including sigmoid mesentery) - Ureter (pelvic portion) **Note 6:** Peritoneal implants or peritoneal carcinomatosis may also be called seeding, salting, talcum powder appearance, or studding. * Code 600, 650, or 700 based on microscopic or the macroscopic size * Extraperitoneal carcinomatosis are coded in EOD Mets **Note 7:** If implants are mentioned, determine whether they are in the pelvis or in the abdomen and code appropriately. If the location of the implants is not specified, code 750. **Note 8:** Both extension to and/or discontinuous metastasis to any of the following abdominal organs by way of peritoneal seeding or implants are included in codes 600-750 - Abdominal mesentery - Diaphragm - Gallbladder - Intestine, large (except rectum, rectosigmoid and sigmoid colon) - Kidneys - Liver (peritoneal surface) - Omentum (infracolic, NOS) - Pancreas - Pericolic gutter - Peritoneum, NOS - Small intestine - Spleen (capsular involvement only) - Stomach - Ureters (outside pelvis) **Note 9:** Tumor limited to the peritoneal surface of the liver or splenic capsule is coded 700, regardless of the size (microscopic or macroscopic) - Liver and splenic **parenchymal** involvement is coded in EOD Mets (code 50)
Code Description SS2018 T
000 In situ, intraepithelial, noninvasive, preinvasive Limited to tubal mucosa Low grade (LGSC) serous tubal intraepithelial carcinoma (STIC) (8441/2) Serous tubal intraepithelial carcinoma (STIC) (no grade) (8441/2) IS
050 High-grade serous tubal intraepithelial carcinoma (STIC) (8441/2) Limited to one tube IS
070 High-grade serous tubal intraepithelial carcinoma (STIC) (8441/2) Both tubes involved IS
080 High-grade serous tubal intraepithelial carcinoma (STIC) (8441/2) Unknown if one or both tubes involved IS
100 Limited to one fallopian tube AND - No tumor on fallopian tube surface AND - No malignant cells in ascites or peritoneal washings FIGO Stage IA L
150 Limited to both fallopian tubes AND - No tumor on fallopian tube surface AND - No malignant cells in ascites or peritoneal washings FIGO Stage IB L
250 Limited to one or both fallopian tube(s) - WITH tumor on fallopian tube surface FIGO Stage IC2 RE
300 Malignant cells in ascites or peritoneal washings Limited to one or both fallopian tube(s) FIGO Stage IC3 RE
350 Limited to one or both fallopian tube(s) - UNKNOWN if cells in ascites or peritoneal washings - UNKNOWN if tumor on fallopian tube surface Confined to fallopian tube, NOS Localized, NOS FIGO Stage I [NOS] L
400 Extension to or implants on - Adnexa - Ovary(ies) - Uterus, NOS FIGO Stage IIA RE
450 Extension to and/or discontinuous metastasis to pelvic sites (see Note 5) FIGO Stage IIB RE
500 Tumor involves one or both fallopian tube(s) - WITH pelvic extension, NOS (below pelvic brim) FIGO Stage II [NOS] RE
600 Microscopic peritoneal implants or microscopic peritoneal carcinomatosis beyond pelvis (above pelvic brim) (See Note 8) FIGO Stage IIIA D
650 Macroscopic peritoneal implants or macroscopic peritoneal carcinomatosis beyond pelvis (above pelvic brim) (See Note 8) FIGO Stage IIIB D
700 Macroscopic peritoneal implants or macroscopic peritoneal carcinomatosis beyond pelvis (above pelvic brim) (See Note 8) - Greater than 2 cm in diameter Extension or implants (microscopic, macroscopic or unknown) to the peritoneal surface of the liver or splenic capsule - WITHOUT parenchymal involvement of either organ FIGO Stage IIIC D
750 One or both fallopian tube(s) involved - WITH confirmed peritoneal metastasis or peritoneal carcinomatosis outside of the pelvis (above pelvic brim) - UNKNOWN if microscopic or macroscopic Peritoneal implants, NOS Further contiguous extension FIGO Stage III [NOS] D
800 No evidence of primary tumor U
999 Unknown; extension not stated Primary tumor cannot be assessed Not documented in medical record Death Certificate Only U
(1) Fritz AG, Ries LAG (eds). **SEER Extent of Disease 1988: Codes and Coding Instructions (3rd Edition, 1998)**, National Cancer Institute, NIH Pub. No. 98-2313, Bethesda, MD, 1998 (2) Young JL Jr, Roffers SD, Ries LAG, Fritz AG, Hurlbut AA (eds.). **SEER Summary Staging Manual-2000: Codes and Coding Instructions**, National Cancer Institute, NIH Pub. No. 01-4969, Bethesda, MD, 2001. (3) Collaborative Stage Work Group of the American Joint Committee on Cancer. **Collaborative Stage Data Collection System User Documentation and Coding Instructions, version 02.05**. American Joint Committee on Cancer (Chicago, IL) (4) Gress, D.M., Edge, S.B., Gershenwald, J.E., et al. **Principles of Cancer Staging**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017 (5) **Introduction to Female Reproductive Organs**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017 (6) Prat, J., Olawaiye, A.B., Mutch, D.G., et al. **Ovary, Fallopian Tube, and Primary Peritoneal Carcinoma**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017