K29 vs K52.81
K29 (Gastritis and duodenitis) compared with K52.81 (Eosinophilic gastritis or gastroenteritis), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. K29 carries an Excludes1 note covering K52.81: “eosinophilic gastritis or gastroenteritis (K52.81)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| K29Gastritis and duodenitis | 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 | Gastritis and duodenitis is a non-billable ICD-10-CM category code (K29). | Eosinophilic gastritis or gastroenteritis is a billable ICD-10-CM diagnosis code (K52.81). |
| Includes | — | noninfective inflammatory bowel disease Eosinophilic enteritis |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources