K52.2 vs K52.81
K52.2 (Allergic and dietetic gastroenteritis and colitis) compared with K52.81 (Eosinophilic gastritis or gastroenteritis), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. K52.2 carries an Excludes2 note covering K52.81: “allergic eosinophilic gastritis (K52.81)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Yes, when both are documented. K52.2 carries an Excludes2 note covering K52.81: “allergic eosinophilic gastroenteritis (K52.81)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| K52.2Allergic and dietetic gastroenteritis and colitis | K52.81Eosinophilic gastritis or gastroenteritis | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | K00-K95 — Diseases of the Digestive System (K00-K95) | K00-K95 — Diseases of the Digestive System (K00-K95) |
| Definition | Allergic and dietetic gastroenteritis and colitis is a non-billable ICD-10-CM category code (K52.2). | Eosinophilic gastritis or gastroenteritis is a billable ICD-10-CM diagnosis code (K52.81). |
| Includes | noninfective inflammatory bowel disease Food hypersensitivity gastroenteritis or colitis | noninfective inflammatory bowel disease Eosinophilic enteritis |
| Use additional code | code to identify type of food allergy (Z91.01-, Z91.02-) | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources