Small Intestine (excluding Gastrointestinal Stromal Tumor and Neuroendocrine Tumor)

Primary Site Histology Staging Type
C170-C172, C178-C179 8000-8152, 8154-8231, 8243-8245, 8247-8248, 8250-8576, 8940-8950, 8980-8981 TNM 7 and Summary Stage
C170-C172, C178-C179 8577-8934, 8951-8979, 8982-9136, 9141-9582, 9700-9701 Summary Stage only
C173 8000-8152, 8154-8231, 8243-8245, 8247-8248, 8250-8934, 8940-9136, 9141-9582, 9700-9701 Summary Stage only

If you are working with a site/histology that only summary stages and you need to directly code it, please use the SEER Summary Stage 2000 manual

Notes

M-8000-8152,8154-8231,8243-8245,8247,8248,8250-8934,8940-9136,9141-9582,9700-9701
C170 Duodenum
C171 Jejunum
C172 Ileum (excluding ileocecal valve C18.0)
C173 Meckel diverticulum (site of neoplasm)
C178 Overlapping lesion of small intestine
C179 Small intestine, NOS

Note 1: This schema is based on the UICC chapter Small Intestine, pages 82-85.

  • Primary sites C173, C178, and C179 are listed in the chapter heading but are not specified in the anatomic subsites in this chapter of the UICC manual; however, they are included in this schema and TNM staged if appropriate histology criteria are met

Note 2: In addition to directly assigning TNM, Summary Stage 2000 (SS2000) must be captured. If directly assigning SS2000, use the Small Intestine chapter on page 86 of the SS2000 on-line manual.

Main Data Items

Name Default Value Used for Staging NAACCR Item Required By Metadata
Clinical T <BLANK> Yes NAACCR #940 None
Clinical N <BLANK> Yes NAACCR #950 None
Clinical M <BLANK> Yes NAACCR #960 None
TNM Clin Stage Group 99 Yes NAACCR #970 None
Pathologic T <BLANK> Yes NAACCR #880 None
Pathologic N <BLANK> Yes NAACCR #890 None
Pathologic M <BLANK> Yes NAACCR #900 None
TNM Path Stage Group 99 Yes NAACCR #910 None
SSF1: Carcinoembryonic Antigen (CEA) 999 No NAACCR #2880 CCCR/Canada
COC
SEER
None
SSF3: Carcinoembryonic Antigen (CEA) Lab Value 988 No NAACCR #2900 CCCR/Canada
COC
None
SSF4: Crohn Disease 988 No NAACCR #2910 None None
SSF5: Microsatellite Instability 988 No NAACCR #2920 None None

Additional Data Items

Name Default Value Used for Staging NAACCR Item Required By Metadata
Year of Diagnosis <BLANK> No NAACCR #390 None
Primary Site <BLANK> Yes NAACCR #400 None
Histology <BLANK> Yes NAACCR #522 None
Behavior <BLANK> Yes NAACCR #523 None
RX Summ Systemic/Surgery Sequence <BLANK> Yes NAACCR #1639 None
RX Summ Surgery/Radiation Sequence <BLANK> Yes NAACCR #1380 None
Regional Nodes Positive <BLANK> Yes NAACCR #820 None