ICD-10-CM 2027
ICD-10 code for eosinophilic colitis
From the official ICD-10-CM alphabetic index entry “Colitis (acute) (catarrhal) (chronic) (noninfective) (hemorrhagic) › eosinophilic”. Page updated September 29, 2026.
About coding eosinophilic colitis
The ICD-10-CM code for eosinophilic colitis is K52.82 (Eosinophilic colitis).
Within K52.8 (other specified noninfective gastroenteritis and colitis), K52.82 is specifically for eosinophilic colitis. Related codes cover eosinophilic gastritis or gastroenteritis (K52.81), microscopic colitis (K52.83) and other specified noninfective gastroenteritis and colitis (K52.89).
The conditions in its Excludes2 note aren't part of K52.82, but may be coded alongside it if the patient has both: allergic proctocolitis (K52.29), food-induced eosinophilic proctocolitis (K52.29), food protein-induced enterocolitis syndrome (FPIES) (K52.21), food protein-induced proctocolitis (K52.29) and 1 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Common questions about eosinophilic colitis ICD-10 codes
What is the ICD-10 code for eosinophilic colitis?
- K52.82 — Eosinophilic colitis.
Is K52.82 billable?
- Yes. K52.82 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can K52.82 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict K52.82 as a principal diagnosis.
Is K52.82 a CC or MCC?
- No. K52.82 is neither a CC nor an MCC under MS-DRG v44.0.