]> M-8000-8152,8154-8231,8243-8245,8247,8248,8250-8934,8940-9136,9141-9582,9700-9701 C17.0 Duodenum C17.1 Jejunum C17.2 Ileum (excluding ileocecal valve C18.0) C17.3 Meckel diverticulum (site of neoplasm) C17.8 Overlapping lesion of small intestine C17.9 Small intestine, NOS &generalsize; CS Extension Note 1: The nonperitonealized perimuscular tissue is, for jejunum and ileum, part of the mesentery and, for duodenum in areas where serosa is lacking, part of the interface with the pancreas. Note 2: Codes 100-200 take priority over code 300. Code depth of invasion in preference to intraluminal spread or lateral extension to adjacent segment(s) of small intestine or cecum. Note 3: High-grade dysplasia is not always collected by cancer registries but, if collected, it should be coded 000. Code Description TNM 7 Map TNM 6 Map SS77 Map SS2000 Map 000 In situ, intraepithelial, noninvasive Tis Tis IS IS 050 (Adeno)carcinoma, noninvasive, in a polyp Tis Tis IS IS 095 ERROR ERROR ERROR ERROR 100 T1a T1 L L 110 Invasion of lamina propria T1a T1 L L 120 Invasion of muscularis mucosae T1a T1 L L 125 ERROR ERROR ERROR ERROR 130 Invasive tumor confined to head of polyp T1a T1 L L 140 Invasive tumor onfined to stalk of polyp T1a T1 L L 150 Invasion of polyp, NOS T1a T1 L L 155 Stated as T1a with no other information on extension T1a T1 L L 160 Invasion of submucosa (superficial invasion) T1b T1 L L 165 Stated as T1b with no other information on extension T1b T1 L L 170 Stated as T1 [NOS] with no other information on extension T1NOS T1 L L 200 T2 T2 L L 300 T1NOS T1 L L 400 T3 T3 L L 420 ERROR ERROR ERROR ERROR 450 T3 T3 RE RE 458 Fat, NOS T3 T3 RE RE 500 T4 T4 L RE 550 500 + (450 or 458) T4 T4 RE RE 600 T4 T4 RE RE 650 T4 T4 RE RE 660 T4 T4 RE RE 670 T4 T4 RE RE 680 T4 T4 RE RE 690 ERROR ERROR ERROR ERROR 700 T4 T4 D D 800 Further contiguous extension T4 T4 D D 805 Stated as T4 with no other information on extension T4 T4 RE RE 950 No evidence of primary tumor T0 T0 U U 999 TX TX U U &generalcstsexteval; CS Lymph Nodes Note 1: Code only regional nodes and nodes, NOS in this field. Distant nodes are coded in CS Mets at DX. Note 2: Pericholedochal nodes are coded in CS Mets at DX for jejunum and ileum primaries. Note 3: The number of positive regional nodes is required to calculate the correct N category for this site. If information about the number of positive nodes is available, use code 100, 200, or 300. Use code 400 or 450 when the record identifies an N1 or N2 category but the specific information about the number of nodes involved is not 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 RN RN 200 ^ N1 D RN 300 Regional lymph node(s), NOS ^ N1 RN RN 400 Stated as N1 pathologic with no other information on regional lymph nodes N1 N1 RN RN 450 Stated as N2 pathologic with no other information on regional lymph nodes N2 N1 RN RN 800 Lymph nodes, NOS N1 N1 RN RN 999 NX NX U U ^ For CS Lymph Nodes codes 100-300 ONLY, when CS Lymph Nodes Eval is 0, 1, 5, or 9, the N category for AJCC 7 staging is assigned as shown in the Lymph Nodes Clinical Evaluation AJCC 7 Table, using Regional Nodes Positive and CS Site-Specific Factor 2, Clinical Assessment of Regional Nodes; when CS Lymph Nodes Eval is 2, 3, 6, 8, or not coded, the N category for AJCC 7 staging is assigned as shown in the Lymph Nodes Pathologic Evaluation AJCC 7 Table Also Used When CS Lymph Nodes Eval Is Not Coded, using Regional Nodes Positive. &generalregnodeseval; &commonreglnposcolon; &generalreglnexam; CS Mets at DX Code Description TNM 7 Map TNM 6 Map SS77 Map SS2000 Map 00 M0 M0 NONE NONE 08 M1 M1 D RN 10 M1 M1 D D 11 ERROR ERROR ERROR ERROR 40 M1 M1 D D 50 M1 M1 D D 60 M1 M1 D D 99 M0 MX U U &generalmetseval; CS Site-Specific Factor 1 Carcinoembryonic Antigen (CEA) Note: Record the interpretation of the highest CEA test results obtained prior to treatment. Use the interpretation for the lab value recorded in CS Site-Specific Factor 3. Code Description 000 010 020 Negative/normal; within normal limits 030 Borderline; undetermined if positive or negative 888 988 997 998 999 Unknown or no information Not documented in patient record CS Site-Specific Factor 2 Clinical Assessment of Regional Lymph Nodes Note 1: Only include information from imaging and physical examination in this item. Do not include information on regional lymph nodes that is based on surgical observation or diagnostic lymph node biopsy. Note 2: In the rare instance that the number of clinically positive nodes is stated but a clinical N category is not stated, code 1-3 nodes as 100 (clinical N1), and 4 or more nodes as 200 (clinical N2). Note 3: If there is no diagnostic work-up to assess regional lymph nodes, use code 999. Do not apply the inaccessible nodes rule that presumes unmentioned nodes to be negative. Code Description 000 Nodes not clinically evident; imaging of regional nodes performed and nodes not mentioned 100 200 400 Clinically positive regional nodes, NOS 888 988 999 &commonssf3colon; CS Site-Specific Factor 4 Crohn Disease Note 1: Crohn disease is an inflammatory bowel disease associated with an increased risk for small intestinal carcinomas. Crohn disease is also known as ileitis or enteritis. It is not the same as irritable bowel syndrome. Note 2: Code the absence or presence of Crohn disease, including a history of Crohn disease. Code Description 000 No history of Crohn disease 010 History of Crohn disease 888 988 999 CS Site-Specific Factor 5 Microsatellite Instability Note: The microsatellite instability (MSI) test is a genetic test performed on tumor tissue to look for differences in length of certain non-functioning sections of deoxyribonucleic acid (DNA). The differences are caused by problems with the genes that normally repair DNA. A high-positive MSI (MSI-H) result may indicate that the gene repair problem is related to the development of the cancer, and that the patient may have hereditary nonpolyposis colorectal cancer (HNPCC), also known as Lynch syndrome. A low-positive or stable MSI result (stable meaning that there are no differences in the lengths) means it is unlikely that the cancer is related to a hereditary condition. Code Description 020 Microsatellite instability (MSI) stable; no MSI 040 MSI unstable low; positive, low 050 MSI unstable high; positive, high 060 MSI unstable, NOS; positive, NOS 888 988 997 Test ordered, results not in chart 998 Test not done (test not ordered and not performed) 999 ¬appssfactor6; ¬appnewssf7; ¬appnewssf8; ¬appnewssf9; ¬appnewssf10; ¬appnewssf11; ¬appnewssf12; ¬appnewssf13; ¬appnewssf14; ¬appnewssf15; ¬appnewssf16; ¬appnewssf17; ¬appnewssf18; ¬appnewssf19; ¬appnewssf20; ¬appnewssf21; ¬appnewssf22; ¬appnewssf23; ¬appnewssf24; ¬appnewssf25; &commonhistinclusionsmallintestine; &commonhistologyexclusions1; AJCC TNM 7 Stage T N M Stage T0 N0 M0 ERROR T0 N1 M0 IIIA T0 N2 M0 IIIB T0 NX M0 UNK Tis N0 M0 0 Tis N1 M0 ERROR Tis N2 M0 ERROR Tis NX M0 0 T1a N0 M0 I T1a N1 M0 IIIA T1a N2 M0 IIIB T1a NX M0 UNK T1b N0 M0 I T1b N1 M0 IIIA T1b N2 M0 IIIB T1b NX M0 UNK T1NOS N0 M0 I T1NOS N1 M0 IIIA T1NOS N2 M0 IIIB T1NOS NX M0 UNK T2 N0 M0 I T2 N1 M0 IIIA T2 N2 M0 IIIB T2 NX M0 UNK T3 N0 M0 IIA T3 N1 M0 IIIA T3 N2 M0 IIIB T3 NX M0 UNK T4 N0 M0 IIB T4 N1 M0 IIIA T4 N2 M0 IIIB T4 NX M0 UNK TX N0 M0 UNK TX N1 M0 IIIA TX N2 M0 IIIB TX NX M0 UNK T0 N0 M1 IV T0 N1 M1 IV T0 N2 M1 IV T0 NX M1 IV Tis N0 M1 ERROR Tis N1 M1 ERROR Tis N2 M1 ERROR Tis NX M1 ERROR T1a N0 M1 IV T1a N1 M1 IV T1a N2 M1 IV T1a NX M1 IV T1b N0 M1 IV T1b N1 M1 IV T1b N2 M1 IV T1b NX M1 IV T1NOS N0 M1 IV T1NOS N1 M1 IV T1NOS N2 M1 IV T1NOS NX M1 IV T2 N0 M1 IV T2 N1 M1 IV T2 N2 M1 IV T2 NX M1 IV T3 N0 M1 IV T3 N1 M1 IV T3 N2 M1 IV T3 NX M1 IV T4 N0 M1 IV T4 N1 M1 IV T4 N2 M1 IV T4 NX M1 IV TX N0 M1 IV TX N1 M1 IV TX N2 M1 IV TX NX M1 IV &commonstagesmallintestine; &commonsummarystage; Lymph Nodes Clinical Evaluation AJCC 7 Table Note: This table is used when CS Lymph Nodes is 100-300 and CS Lymph Nodes Eval is 0, 1, 5, or 9. The N category for AJCC 7 staging is determined based on the number of positive regional nodes in Regional Nodes Positive and the value of CS Site-Specific Factor 2, Clinical Assessment of Regional Lymph Nodes. Regional Nodes Positive CS SSF 2 000 0 CS SSF 2 100 100 CS SSF 2 200 200 CS SSF 2 400 400 CS SSF 2 888 888 CS SSF 2 988 988 CS SSF 2 999 999 00-00 N1 N1 N2 N1 ERROR ERROR N1 01-03 N1 N1 N2 N1 ERROR ERROR N1 04-90 N2 N2 N2 N2 ERROR ERROR N2 95-97 N1 N1 N2 N1 ERROR ERROR N1 98-99 N1 N1 N2 N1 ERROR ERROR N1 Lymph Nodes Pathologic Evaluation AJCC 7 Table Also Used When CS Lymph Nodes Eval Is Not Coded Note: This table is used when CS Lymph Nodes is 100-300 and CS Lymph Nodes Eval is 2, 3, 6, 8, or not coded. The N category for AJCC 7 staging is determined based on the number of positive regional nodes in Regional Nodes Positive. Regional Nodes Positive N Category 00-03 N1 04-90 N2 95-99 N1