K28

Gastrojejunal ulcer

FY2027Chapter 11: Diseases of the digestive system/K20–K31 Diseases of esophagus, stomach and duodenum

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

K28 is a non-billable ICD-10-CM code category for gastrojejunal ulcer. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are 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 and 5 more. Its coding notes include a Use additional code instruction, 1 Excludes1 entry and 9 Excludes2 entries.

Use additional code

Add the listed code as a secondary code, if known.

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

Excludes1

Not coded here. The listed conditions generally should not be reported together.

This code
  • primary ulcer of small intestine (K63.3)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (9 notes)
Inherited from K20–K31 Diseases of esophagus, stomach and duodenum
Inherited from Chapter 11 Diseases of the digestive system
  • 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)

Includes

Further defines or gives examples of the content of the category.

This code
  • 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

More specific codes under K28 9