MCMedicalCodingSoftware
K28

K28: Gastrojejunal ulcer

Non-billable headerICD-10-CM

K28 is a non-billable header ICD-10-CM code for gastrojejunal ulcer. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • primary ulcer of small intestine (K63.3)

Use additional code

Add a secondary code to capture the detail described below.

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

Includes

Conditions this code covers.

  • 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

Other codes that can never be billed with K28

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • K63.3Ulcer of intestine
  • K92.2Gastrointestinal hemorrhage, unspecified

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead K28

9 child codes. Green means billable.

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.