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K63.3

Billable

Ulcer of intestine

K63.3 is the ICD-10-CM code for Ulcer of intestine. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
K00-K95
Parent
K63
Edition
FY2026

K00-K95 Diseases of the digestive system

Includes

  • •Primary ulcer of small intestine

Excludes1 — not coded here

  • •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.-)

Frequently asked questions

What is ICD-10 code K63.3?
K63.3 is the ICD-10-CM code for "Ulcer of intestine". It falls under K00-K95 Diseases of the digestive system.
Is K63.3 a billable code?
Yes — K63.3 is a billable, specific ICD-10-CM code valid for reimbursement.
What is excluded from K63.3?
Excludes1 (not coded here): duodenal ulcer (K26.-); gastrointestinal ulcer (K28.-); gastrojejunal ulcer (K28.-); jejunal ulcer (K28.-).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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