U.S. ICD-10-CM · FY 2027

K29 ICD-10-CM Code: Gastritis and duodenitis

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

Code definition

Official description

K29

Gastritis and duodenitis

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

Classification

Where K29 sits

  1. 1

    Chapter 11

    Diseases of the digestive system (K00-K95)

  2. 2

    Section

    Diseases of esophagus, stomach and duodenum (K20-K31)

  3. 3

    Category K29

    Gastritis and duodenitis

  4. 4

    Code K29

    Gastritis and duodenitis

More specific choices

Codes under K29

K29 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 K29.

Code first

No “code first” instruction is listed for K29.

Use additional code

No “use additional code” instruction is listed for K29.

Excludes1

Conditions that should not be reported together with this code.

  • eosinophilic gastritis or gastroenteritis (K52.81)
  • Zollinger-Ellison syndrome (E16.4)

Excludes2

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

No Excludes2 note is listed for K29.

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 K29 mean?

K29 is the FY 2027 U.S. ICD-10-CM code for “Gastritis and duodenitis.”

Is K29 a billable or specific ICD-10-CM code?

No. K29 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 K29 located in ICD-10-CM?

K29 is listed in Chapter 11, Diseases of the digestive system (K00-K95), within Diseases of esophagus, stomach and duodenum (K20-K31) (K20–K31), under category K29, Gastritis and duodenitis.

What coding notes are listed for K29?

No inclusion terms are listed for K29 in this reference record. No code-first instruction is listed. Excludes1 notes: eosinophilic gastritis or gastroenteritis (K52.81); Zollinger-Ellison syndrome (E16.4). No Excludes2 note is listed.

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