K52.29
Other allergic and dietetic gastroenteritis and colitis
Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 14 never code together
K52.2code
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 9
K52.2code
K52.29code
Inclusion terms
- Allergic proctocolitis
- Food hypersensitivity gastroenteritis or colitis
- Food-induced eosinophilic proctocolitis
- Food protein-induced proctocolitis
- Immediate gastrointestinal hypersensitivity
- Milk protein-induced proctocolitis
K50-K52block
Includes
- noninfective inflammatory bowel disease
Index entries leading here 7
- Enteritis (acute) (diarrheal) (hemorrhagic) (noninfective) K52.9
- Gastroenteritis (acute) (chronic) (noninfectious) K52.9
- Colitis (acute) (catarrhal) (chronic) (noninfective) (hemorrhagic) K52.9
- Diarrhea, diarrheal (disease) (infantile) (inflammatory) R19.7
- Proctocolitis
- Allergy, allergic (reaction) (to) T78.40
- Hypersensitive, hypersensitiveness, hypersensitivity — see also Allergy
Alongside this code 2 same parent — K52.2
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.