C17
⚠ Non-billable
Malignant neoplasm of small intestine
ICD-10-CM · FY2026 · Neoplasms
Code
C17
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Neoplasms
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code C17?
ICD-10-CM code C17 represents Malignant neoplasm of small intestine. It is a non-billable header code requiring a more specific subcategory in the Neoplasms chapter, effective October 1, 2025 – September 30, 2026.
Is C17 billable?
No. C17 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is C17 in?
C17 belongs to the Neoplasms chapter (C00–D49) of ICD-10-CM.
Related codes in the C17 category
C17.0
Malignant neoplasm of duodenum
Billable
C17.1
Malignant neoplasm of jejunum
Billable
C17.2
Malignant neoplasm of ileum
Billable
C17.3
Meckel's diverticulum, malignant
Billable
C17.8
Malignant neoplasm of overlapping sites of small intestine
Billable
C17.9
Malignant neoplasm of small intestine, unspecified
Billable
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