C17.0 ICD-10-CM Code: Malignant neoplasm of duodenum

C17.0 is the billable ICD-10-CM code for “Malignant neoplasm of duodenum” in the FY 2027 U.S. code set, effective Oct 1, 2026.

Official description

C17.0

Malignant neoplasm of duodenum

ICD-10-CM diagnosis code · United States clinical modification

Where C17.0 sits

  1. 1

    Chapter 2

    Neoplasms (C00-D49)

  2. 2

    Section

    Malignant neoplasms of digestive organs (C15-C26)

  3. 3

    Category C17

    Malignant neoplasm of small intestine

  4. 4

    Code C17.0

    Malignant neoplasm of duodenum

Notes for this code

Inclusion terms

No inclusion terms are listed for C17.0.

Code first

No “code first” instruction is listed for C17.0.

Use additional code

No “use additional code” instruction is listed for C17.0.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for C17.0.

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for C17.0.

Source and release

Data release
U.S. ICD-10-CM · FY 2027
Effective date
Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Frequently asked questions

What does ICD-10-CM code C17.0 mean?

C17.0 is the FY 2027 U.S. ICD-10-CM code for “Malignant neoplasm of duodenum.”

Is C17.0 a billable or specific ICD-10-CM code?

Yes. In the FY 2027 reference data used on this page, C17.0 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.

Where is C17.0 located in ICD-10-CM?

C17.0 is listed in Chapter 2, Neoplasms (C00-D49), within Malignant neoplasms of digestive organs (C15-C26) (C15–C26), under category C17, Malignant neoplasm of small intestine.

What coding notes are listed for C17.0?

No inclusion terms are listed for C17.0 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.