U.S. ICD-10-CM · FY 2027

C17 ICD-10-CM Code: Malignant neoplasm of small intestine

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

C17

Malignant neoplasm of small intestine

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

Classification

Where C17 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

    Malignant neoplasm of small intestine

More specific choices

Codes under C17

C17 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for C17.

Code first

No “code first” instruction is listed for C17.

Use additional code

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

Excludes1

Conditions that should not be reported together with this code.

  • malignant carcinoid tumors of the small intestine (C7A.01)

Excludes2

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

No Excludes2 note is listed for C17.

Transparency

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.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code C17 mean?

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

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

No. C17 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is C17 located in ICD-10-CM?

C17 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?

No inclusion terms are listed for C17 in this reference record. No code-first instruction is listed. Excludes1 notes: malignant carcinoid tumors of the small intestine (C7A.01). No Excludes2 note is listed.

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