]> M-8000-8576, 8590-8671, 8930-8934, 8940-9110 C48.1 Specified parts of peritoneum (including omentum and mesentery) C48.2 Peritoneum, NOS C48.8 Overlapping lesion of retroperitoneum and peritoneum &commontumorsize_drone; CS Extension Note 1: As stated in the AJCC 7th Edition, p. 419, a primary peritoneal carcinoma may not involve the ovaries or only involve the ovaries "with minimal surface implants. The clinical presentation, surgical therapy, chemotherapy, and prognosis of these peritoneal tumors mirror those of papillary serous carcinoma of the ovary. Patients who undergo prophylactic oophorectomy for a familial history of ovarian cancer appear to retain a 1 to 2% chance of developing peritoneal adenocarcinoma, which is histopathologically and clinically similar to primary ovarian cancer." Note 2: When both the 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 if it is known that the stage value is assigned because of tumor extension or if the basis is unknown. Note 3: For most histologies the T category for AJCC 6 staging is assigned as NA. Code Description TNM 7 Map TNM 6 Map SS77 Map SS2000 Map 100 ERROR * L L 150 T3a * L L 180 T3a * L L 300 ERROR * L L 400 ERROR * RE RE 510 T3b * RE RE 520 T3b * RE RE 530 T3b * D D 580 T3b * RE RE 600 ERROR * RE RE 610 T3c * L L 620 T3c * RE RE 630 T3c * D D 640 T3c * RE RE 650 T3c * D D 660 T3c * D D 700 ERROR ERROR ERROR ERROR 705 ERROR ERROR ERROR ERROR 710 T3b * D D 715 ERROR ERROR ERROR ERROR 720 T3c * D D 722 T3c * RE RE 725 T3c * D D 728 T3c * D D 730 FIGO Stage IIIC based on tumor extension T3c * D D 735 FIGO Stage IIIC unknown if based on tumor extension or nodes T3c * D D 750 Peritoneal implants, NOS T3NOS * L L 780 FIGO Stage III [NOS] T3NOS * L L 785 T3NOS * D D 790 T3c * D D 795 T3c * D D 800 ERROR ERROR ERROR ERROR 950 No evidence of primary tumor T0 T0 U U 999 TX TX U U * For CS Extension codes 100-700, 710, and 720-795 ONLY, the T category for AJCC 6 staging for certain histologies is assigned based on the value of CS Tumor Size, as shown in the Extension Size Table for this schema. &generalcstsexteval; CS Lymph Nodes Note 1: Regional lymph nodes are defined as those in the vicinity of the primary tumor. Code only regional nodes and nodes, NOS in this field. Distant nodes are coded in CS Mets at DX. Note 2: Federation Internationale de Gynecologie at d-Obstetrique (FIGO) Stage IIIC is assigned based on tumor extension and/or regional lymph node involvement. Code CS Lymph Nodes based on a physician's statement of FIGO Stage IIIC only if it is known that the stage value is assigned because of lymph node involvement. Note 3: Regional lymph node involvement is rare. For this schema, if there is no mention of lymph node involvement clinically, assume that lymph nodes are negative (code 000). Use code 999 only when there is no available information on the extent of the patient's disease, for example, when a lab-only case is abstracted from a biopsy report and no clinical history is available. Code Description TNM 7 Map TNM 6 Map SS77 Map SS2000 Map 000 No regional lymph node involvement N0 N0 NONE NONE 100 N1 N1 RN RN 150 FIGO IIIC based on regional lymph node involvement N1 N1 RN RN 800 Lymph nodes, NOS N1 N1 RN RN 999 Unknown; regional lymph nodes not stated Regional lymph nodes cannot be assessed Not document in patient record (See Note 2) NX NX U U &generalregnodeseval; &generalreglnpos; &generalreglnexam; CS Mets at DX Note: When both the Federation Internationale de Gynecologie et d'Obstetrique (FIGO) stage and metastatic detail are available, record the code with metastatic detail in preference to a statement of FIGO stage. Code Description TNM 7 Map TNM 6 Map SS77 Map SS2000 Map 00 No distant metastasis M0 M0 NONE NONE 10 Distant lymph node(s) M1 M1 D D 40 M1 M1 D D 50 M1 M1 D D 60 M1 M1 D D 70 M1 M1 D D 99 M0 MX U U &generalmetseval; &commonssf1perifemalegen; &commonssf2perifemalegen; &commonssf3ovary; &commonssf4ovary; &commonssf5ovary; ¬appssfactor6; ¬appnewssf7; ¬appnewssf8; ¬appnewssf9; ¬appnewssf10; ¬appnewssf11; ¬appnewssf12; ¬appnewssf13; ¬appnewssf14; ¬appnewssf15; ¬appnewssf16; ¬appnewssf17; ¬appnewssf18; ¬appnewssf19; ¬appnewssf20; ¬appnewssf21; ¬appnewssf22; ¬appnewssf23; ¬appnewssf24; &commonssf25peritoneum; &commonhistinclusionperitoneumfemgen; &commonhistexclusionssarcoma; AJCC TNM 7 Stage T N M Stage T0 N0 M0 ERROR T0 N1 M0 IIIC T0 NX M0 UNK T3a N0 M0 IIIA T3a N1 M0 IIIC T3a NX M0 UNK T3b N0 M0 IIIB T3b N1 M0 IIIC T3b NX M0 UNK T3c N0 M0 IIIC T3c N1 M0 IIIC T3c NX M0 IIIC T3NOS N0 M0 IIINOS T3NOS N1 M0 IIIC T3NOS NX M0 IIINOS TX N0 M0 UNK TX N1 M0 IIIC TX NX M0 UNK T0 N0 M1 IV T0 N1 M1 IV T0 NX M1 IV T3a N0 M1 IV T3a N1 M1 IV T3a NX M1 IV T3b N0 M1 IV T3b N1 M1 IV T3b NX M1 IV T3c N0 M1 IV T3c N1 M1 IV T3c NX M1 IV T3NOS N0 M1 IV T3NOS N1 M1 IV T3NOS NX M1 IV TX N0 M1 IV TX N1 M1 IV TX NX M1 IV &commonstageheartmedperit; &commonsummarystage; Extension Size Table Note 1: For CS Extension codes 100-660, 710, and 720-795, the T category for AJCC 6 staging is assigned based on the value of CS Tumor Size, as shown in this table. CS Extension CS Tumor Size 000 0 CS Tumor Size 001-050 1 50 CS Tumor Size 051-989 51 989 CS Tumor Size 990-995 990 995 CS Tumor Size 996 996 CS Tumor Size 997-998 997 998 CS Tumor Size 999 999 100-660 ERROR T1b T2b T1b T2b ERROR TX 710 ERROR T1b T2b T1b T2b ERROR TX 720-795 ERROR T1b T2b T1b T2b ERROR TX