Collaborative Stage for TNM 7 - Revised 11/22/2010
NETSmallIntestine
Neuroendocrine Tumors of Small Intestine
C17.0-C17.3, C17.8-C17.9
   - M-8153, 8240-8242, 8246, 8249
 
   - C17.0  Duodenum
 
   - C17.1  Jejunum
 
   - C17.2  Ileum (excludes ileocecal valve C18.0)
 
   - C17.3  Meckel diverticulum (site of neoplasm)
 
   - C17.8  Overlapping lesion of small intestine
 
   - C17.9  Small intestine, NOS
 
   - Note 1:  For this schema, AJCC only stages well-differentiated neuroendocrine tumors.  Note that the "concept" of well-differentiated is reflected in the histology code.  The grade code is not needed in order to select the correct schema, but does need to be coded.
 
   - Note 2: This schema is also used for carcinoid tumors and malignant gastrinomas.