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C17.8

C17.8Malignant neoplasm of overlapping sites of small intestine

Billable / specific codeICD-10-CM

C17.8 is a billable, specific ICD-10-CM code for malignant neoplasm of overlapping sites of small intestine. It is valid for submission on a claim.

Risk adjustment

C17.8 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

C17.8 is named in 70 Medicare coverage policies 70 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A52370Billing and Coding: Bevacizumab and biosimilars
  • A52450Billing and Coding: Paclitaxel (e.g., Taxol®/Abraxane ™)
  • A52450Billing and Coding: Paclitaxel (e.g., Taxol®/Abraxane ™)
  • A52479Oral Anticancer Drugs - Policy Article

Related codes at this level

Codes that share C17. If C17.8 is not quite right, the correct code is usually one of these.

Questions about C17.8

Is C17.8 a billable ICD-10-CM code?
Yes. C17.8 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does C17.8 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.