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C24.8

C24.8Malignant neoplasm of overlapping sites of biliary tract

Billable / specific codeICD-10-CM

C24.8 is a billable, specific ICD-10-CM code for malignant neoplasm of overlapping sites of biliary tract. It is valid for submission on a claim.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Malignant neoplasm involving both intrahepatic and extrahepatic bile ducts
  • Primary malignant neoplasm of two or more contiguous sites of biliary tract

Risk adjustment

C24.8 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

  • HCC 20 Lung and Other Severe Cancers1.136 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.

Medicare coverage

C24.8 is named in 63 Medicare coverage policies 63 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A52450Billing and Coding: Paclitaxel (e.g., Taxol®/Abraxane ™)
  • A52479Oral Anticancer Drugs - Policy Article
  • A52479Oral Anticancer Drugs - Policy Article
  • A52480Oral Antiemetic Drugs (Replacement for Intravenous Antiemetics) - Policy Article

Related codes at this level

Codes that share C24. If C24.8 is not quite right, the correct code is usually one of these.

Questions about C24.8

Is C24.8 a billable ICD-10-CM code?
Yes. C24.8 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does C24.8 sit in the tabular list?
Neoplasms (C00-D49), in the block Malignant neoplasms of digestive organs (C15-C26).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.