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K63.3

✓ Billable

Ulcer of intestine

Diseases of the digestive system (K00-K95)

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Also Known As

Primary ulcer of small intestine

❌ Excludes1

direct

Cannot be coded with K63.3

  • • duodenal ulcer (K26.-)
  • • gastrointestinal ulcer (K28.-)
  • • gastrojejunal ulcer (K28.-)
  • • jejunal ulcer (K28.-)
  • • peptic ulcer, site unspecified (K27.-)
  • • ulcer of intestine with perforation (K63.1)
  • • ulcer of anus or rectum (K62.6)
  • • ulcerative colitis (K51.-)

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Code Information

CodeK63.3
BillableYes
ParentK63
CategoryDiseases of the digestive system (K00-K95)
Excludes18 rule(s)
Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)