All ICD10 Codes
Chapter 2

C00–D49: Neoplasms

Neoplasms diagnostic classification updated for 2026.

All CodesBillable Only
Internal Codes
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  • 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

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