Chapter 2

C00–D49: Neoplasms

Neoplasms diagnostic classification updated for 2026.

All Codes Billable Only

Internal Codes

Page 3 of 44

Prev Next

C17.9|
Malignant neoplasm of small intestine, unspecified
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 and anal canal
C21.0|
Malignant neoplasm of anus, unspecified
C21.1|
Malignant neoplasm of anal canal
C21.2|
Malignant neoplasm of cloacogenic zone
C21.8|
Malignant neoplasm of overlapping sites of rectum, anus and anal canal
C22|
Malignant neoplasm of liver and intrahepatic bile ducts
C22.0|
Liver cell carcinoma
C22.1|
Intrahepatic bile duct carcinoma
C22.2|
Hepatoblastoma
C22.3|
Angiosarcoma of liver
C22.4|
Other sarcomas of liver
C22.7|
Other specified carcinomas of liver
C22.8|
Malignant neoplasm of liver, primary, unspecified as to type
C22.9|
Malignant neoplasm of liver, not specified as primary or secondary
C23|
Malignant neoplasm of gallbladder
C24|
Malignant neoplasm of other and 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
C25.0|
Malignant neoplasm of head of pancreas
C25.1|
Malignant neoplasm of body of pancreas
C25.2|
Malignant neoplasm of tail of pancreas
C25.3|
Malignant neoplasm of pancreatic duct
C25.4|
Malignant neoplasm of endocrine pancreas
C25.7|
Malignant neoplasm of other parts of pancreas
C25.8|
Malignant neoplasm of overlapping sites of pancreas
C25.9|
Malignant neoplasm of pancreas, unspecified
C26|
Malignant neoplasm of other and ill-defined digestive organs
C26.0|
Malignant neoplasm of intestinal tract, part unspecified
C26.1|
Malignant neoplasm of spleen
C26.9|
Malignant neoplasm of ill-defined sites within the digestive system
C30|
Malignant neoplasm of nasal cavity and middle ear
C30.0|
Malignant neoplasm of nasal cavity
C30.1|
Malignant neoplasm of middle ear

PreviousPage 3 of 44Next