| Code | Description |
| K29.00 | Acute gastritis without bleeding |
| K29.01 | Acute gastritis with bleeding |
| K29.20 | Alcoholic gastritis without bleeding |
| K29.21 | Alcoholic gastritis with bleeding |
| K29.30 | Chronic superficial gastritis without bleeding |
| K29.31 | Chronic superficial gastritis with bleeding |
| K29.40 | Chronic atrophic gastritis without bleeding |
| K29.41 | Chronic atrophic gastritis with bleeding |
| K29.50 | Unspecified chronic gastritis without bleeding |
| K29.51 | Unspecified chronic gastritis with bleeding |
| K29.60 | Other gastritis without bleeding |
| K29.61 | Other gastritis with bleeding |
| K29.70 | Gastritis, unspecified, without bleeding |
| K29.71 | Gastritis, unspecified, with bleeding |
| K52.81 | Eosinophilic gastritis or gastroenteritis |