ICD-O-3 Site Codes - SEER Training

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1. Home
2. Site Specific Modules
3. Pancreatic & Biliary Cancer
4. Abstracting, Coding, & Staging
5. ICD-O Site Codes

• Pancreatic & Biliary Cancer
  • Introduction
    • Risk Factors
    • Signs & Symptoms
    • Five-Year Survival Rates
    • Review
  • Anatomy of the Pancreas & Dudenum
    • Anatomy of the Liver & Gallbladder
    • Regional Lymph Nodes
    • Review
  • Abstracting, Coding, & Staging
    • ICD-O Site Codes
    • Morphology & Grade
    • Extent of Disease
      • Physical Exam
      • Imaging
      • Tumor Markers
      • Endoscopies
      • Operative Report
      • Pathology
    • Staging
    • Abstracting Keys
  • Treatment
    • Surgery (Pancreas)
    • Surgery (Liver & Intrahepatic Bile Ducts)
    • Surgery (Gallbladder, Extrahepatic Bile Ducts, Ampulla)
    • Other Therapies
• Module (Prostate Cancer)

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Related Adjectives

• Pancreas = pancreatic, pancreatico-
• Gallbladder = cholecysto-
• Liver = hepatic, hepato-
• Biliary Tract = cholangio-
• Bile ducts = choledocho-

ICD-O-3 Codes

Liver and intrahepatic bile ducts

ICD-O-3	Term
C22.0	Liver
C22.1	Intrahepatic bile duct

Gallbladder

ICD-O-3	Term
C23.9	Gallbladder

Other and unspecified biliary tract

ICD-O-3	Term
C24.0	Extrahepatic bile duct
C24.1	Ampulla of Vater
C24.8	Overlapping lesion of biliary tract
C24.9	Biliary tract, NOS

Pancreas

ICD-O-3	Term
C25.0	Head of pancreas
C25.1	Body of pancreas
C25.2	Tail of pancreas
C25.3	Pancreatic duct
C25.4	Islets of Langerhans
C25.7	Other specified parts of pancreas
C25.8	Overlapping lesion of pancreas
C25.9	Pancreas, NOS

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Abstracting, Coding, & Staging

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Morphology & Grade

Suggested Citation

SEER Training Modules: ICD-O-3 Site Codes. U.S. National Institutes of Health, National Cancer Institute. Cited 20 December 2025. Available from: https://training.seer.cancer.gov.

Glossary Term