C15 Malignant Neoplasm of Esophagus

C16 Malignant Neoplasm of Stomach

C17 Malignant Neoplasm of Small Intestine

C18 Malignant Neoplasm of Colon

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

C19 Malignant Neoplasm of Rectosigmoid Junction

C20 Malignant Neoplasm of Rectum

C21 Malignant Neoplasm of Anus & Anal Canal

C22 Malignant Neoplasm of Liver & Intrahepatic Bile Ducts

C23 Malignant Neoplasm of Gallbladder

C24 Malignant Neoplasm of Other & Unspecified Parts of Biliary Tract

 C24.0 Malignant neoplasm of extrahepatic bile duct

C24.1

Malignant neoplasm of ampulla of Vater

 C24.8 Malignant neoplasm of overlapping sites of biliary tract

C24.9 Malignant neoplasm of biliary tract, unspecified

C25 Malignant Neoplasm of Pancreas

C26 Malignant Neoplasm of Other & Ill-defined Digestive Organs