C24.0
Billable codeMalignant neoplasm of extrahepatic bile duct
The ICD-10 code for malignant neoplasm of extrahepatic bile duct is C24.0.
Clinical notes
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Malignant neoplasm of biliary duct or passage NOS
- Malignant neoplasm of common bile duct
- Malignant neoplasm of cystic duct
- Malignant neoplasm of hepatic duct
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- C24.1Malignant neoplasm of ampulla of Vater
- C24.8Malignant neoplasm of overlapping sites of biliary tract
- C24.9Malignant neoplasm of biliary tract, unspecified
- C24.0Malignant neoplasm of extrahepatic bile duct
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 1561
Associated MS-DRGs
C24.0 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.
- DRG 393Other Digestive System Diagnoses with MCC
- DRG 394Other Digestive System Diagnoses with CC
- DRG 395Other Digestive System Diagnoses without CC/MCC
- DRG 435Malignancy of Hepatobiliary System or Pancreas with MCC
- DRG 436Malignancy of Hepatobiliary System or Pancreas with CC
- DRG 437Malignancy of Hepatobiliary System or Pancreas without CC/MCC