K63.3
Ulcer of intestine
Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 16 never code together
K63.3code
Excludes1
- duodenal ulcer (K26.-)K26.-K26.-
- gastrointestinal ulcer (K28.-)K28.-K28.-
- gastrojejunal ulcer (K28.-)K28.-K28.-
- jejunal ulcer (K28.-)K28.-K28.-
- peptic ulcer, site unspecified (K27.-)K27.-K27.-
- ulcer of intestine with perforation (K63.1)K63.1K63.1
- ulcer of anus or rectum (K62.6)K62.6K62.6
- ulcerative colitis (K51.-)K51.-K51.-
K00-K95chapter
Excludes2
- certain conditions originating in the perinatal period (P04-P96)P04-P96
- certain infectious and parasitic diseases (A00-B99)A00-B99
- complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)Q00-Q99
- endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
- injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
- neoplasms (C00-D49)C00-D49
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 1
K63.3code
Inclusion terms
- Primary ulcer of small intestine
Index entries leading here 3
Alongside this code 7 same parent — K63
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.