U.S. ICD-10-CM · FY 2027

C26 ICD-10-CM Code: Malignant neoplasm of other and ill-defined digestive organs

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

Code definition

Official description

C26

Malignant neoplasm of other and ill-defined digestive organs

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

Classification

Where C26 sits

  1. 1

    Chapter 2

    Neoplasms (C00-D49)

  2. 2

    Section

    Malignant neoplasms of digestive organs (C15-C26)

  3. 3

    Category C26

    Malignant neoplasm of other and ill-defined digestive organs

  4. 4

    Code C26

    Malignant neoplasm of other and ill-defined digestive organs

More specific choices

Codes under C26

C26 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 C26.

Code first

No “code first” instruction is listed for C26.

Use additional code

No “use additional code” instruction is listed for C26.

Excludes1

Conditions that should not be reported together with this code.

  • malignant neoplasm of peritoneum and retroperitoneum (C48.-)

Excludes2

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

No Excludes2 note is listed for C26.

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 C26 mean?

C26 is the FY 2027 U.S. ICD-10-CM code for “Malignant neoplasm of other and ill-defined digestive organs.”

Is C26 a billable or specific ICD-10-CM code?

No. C26 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 C26 located in ICD-10-CM?

C26 is listed in Chapter 2, Neoplasms (C00-D49), within Malignant neoplasms of digestive organs (C15-C26) (C15–C26), under category C26, Malignant neoplasm of other and ill-defined digestive organs.

What coding notes are listed for C26?

No inclusion terms are listed for C26 in this reference record. No code-first instruction is listed. Excludes1 notes: malignant neoplasm of peritoneum and retroperitoneum (C48.-). No Excludes2 note is listed.

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