K28

Non-Billable

ChapterK00–K95

Rankcategory

Official Description

Gastrojejunal ulcer

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Non-billable category (requires more specific sub-code).
•Chapter 11: Diseases of the Digestive System (K00-K95).

CH11 Parent Instructions

Excludes2(Not included here)

certain conditions originating in the perinatal period (P04-P96)
certain infectious and parasitic diseases (A00-B99)
complications of pregnancy, childbirth and the puerperium (O00-O9A)
congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
endocrine, nutritional and metabolic diseases (E00-E88)
injury, poisoning and certain other consequences of external causes (S00-T88)
neoplasms (C00-D49)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

K20-K31 Parent Instructions

Excludes2(Not included here)

hiatus hernia (K44.-)

Instructional Notes

Includes

anastomotic ulcer (peptic) or erosion
gastrocolic ulcer (peptic) or erosion
gastrointestinal ulcer (peptic) or erosion
gastrojejunal ulcer (peptic) or erosion
jejunal ulcer (peptic) or erosion
marginal ulcer (peptic) or erosion
stomal ulcer (peptic) or erosion

Excludes1(Not coded here)

primary ulcer of small intestine (K63.3)

Use Additional Code

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

Clinical Hierarchy

CH11Diseases of the digestive system (K00-K95)

K20-K31Diseases of esophagus, stomach and duodenum (K20-K31)

K28Gastrojejunal ulcer

K28.0Acute gastrojejunal ulcer with hemorrhage

K28.1Acute gastrojejunal ulcer with perforation

K28.2Acute gastrojejunal ulcer with both hemorrhage and perforation

K28.3Acute gastrojejunal ulcer without hemorrhage or perforation

K28.4Chronic or unspecified gastrojejunal ulcer with hemorrhage

K28.5Chronic or unspecified gastrojejunal ulcer with perforation

K28.6Chronic or unspecified gastrojejunal ulcer with both hemorrhage and perforation

K28.7Chronic gastrojejunal ulcer without hemorrhage or perforation

K28.9Gastrojejunal ulcer, unspecified as acute or chronic, without hemorrhage or perforation

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to K28:

blockK20-K31

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

View context instructions

chapterCH11

Diseases of the digestive system (K00-K95)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to K28. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

12 raw paths

Ulcer, ulcerated, ulcerating, ulceration, ulcerative12 unique routes

gastrojejunal (peptic)→K28(12 variants)

acute→K28(4 variants)

with(3 variants)

hemorrhage→K28(2 variants)

and perforation→K28

perforation→K28

chronic→K28(4 variants)

with(3 variants)

hemorrhage→K28(2 variants)

and perforation→K28