C18 - Malignant neoplasm of colon
Excludes 1:
-malignant carcinoid tumors of the colon (C7A.02-)
C18.0 - Malignant neoplasm of cecum
C18.1 - Malignant neoplasm of appendix
C18.2 - Malignant neoplasm of ascending colon
C18.3 - Malignant neoplasm of hepatic flexure
C18.4 - Malignant neoplasm of transverse colon
C18.5 - Malignant neoplasm of splenic flexure
C18.6 - Malignant neoplasm of descending colon
C18.7 - Malignant neoplasm of sigmoid colon
C18.8 - Malignant neoplasm of overlapping sites of colon
C18.9 - Malignant neoplasm of colon, unspecified