U.S. ICD-10-CM · FY 2027

K28 ICD-10-CM Code: Gastrojejunal ulcer

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

Code definition

Official description

K28

Gastrojejunal ulcer

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

Classification

Where K28 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 K28

    Gastrojejunal ulcer

  4. 4

    Code K28

    Gastrojejunal ulcer

More specific choices

Codes under K28

K28 is a non-billable category. Choose the child code that best matches the documented diagnosis.

K28.0

Acute gastrojejunal ulcer with hemorrhage

K28.1

Acute gastrojejunal ulcer with perforation

K28.2

Acute gastrojejunal ulcer with both hemorrhage and perforation

K28.3

Acute gastrojejunal ulcer without hemorrhage or perforation

K28.4

Chronic or unspecified gastrojejunal ulcer with hemorrhage

K28.5

Chronic or unspecified gastrojejunal ulcer with perforation

K28.6

Chronic or unspecified gastrojejunal ulcer with both hemorrhage and perforation

K28.7

Chronic gastrojejunal ulcer without hemorrhage or perforation

K28.9

Gastrojejunal ulcer, unspecified as acute or chronic, without hemorrhage or perforation

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for K28.

Code first

No “code first” instruction is listed for K28.

Use additional code

  • code to identify:
  • alcohol abuse and dependence (F10.-)

Excludes1

Conditions that should not be reported together with this code.

  • primary ulcer of small intestine (K63.3)

Excludes2

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

No Excludes2 note is listed for K28.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

Publisher

Vero Scribe Inc.

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 K28 mean?

K28 is the FY 2027 U.S. ICD-10-CM code for “Gastrojejunal ulcer.”

Is K28 a billable or specific ICD-10-CM code?

No. K28 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 K28 located in ICD-10-CM?

K28 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 K28, Gastrojejunal ulcer.

What coding notes are listed for K28?

No inclusion terms are listed for K28 in this reference record. No code-first instruction is listed. Additional-code instructions: code to identify:; alcohol abuse and dependence (F10.-). Excludes1 notes: primary ulcer of small intestine (K63.3). No Excludes2 note is listed.

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