C17.9: Malignant neoplasm of small intestine, unspecified
C17.9 is the billable ICD-10-CM diagnosis code for Malignant neoplasm of small intestine, unspecified. It is a fully specified code, so it can be reported on a claim (subject to clinical documentation and your payer's rules).
Frequently asked questions
What is ICD-10-CM code C17.9?
C17.9 is the ICD-10-CM diagnosis code for Malignant neoplasm of small intestine, unspecified. It belongs to category C17 (Malignant neoplasm of small intestine).
Is C17.9 a billable code?
Yes. C17.9 is a billable, fully specified ICD-10-CM code, so it can be used on a claim (subject to documentation and payer rules).
What category does C17.9 belong to?
C17.9 is part of ICD-10-CM category C17 — Malignant neoplasm of small intestine, which has 12 billable codes.
More free billing tools: all ICD-10 categories · ICD-10 search · denial codes · Medicare fees
Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
Code the diagnosis right
Join providers across the country delivering modern virtual care with CareNiva. Free to start, ready in minutes.
100% Satisfaction Guaranteed — try it risk-free