| K29 | Gastritis and duodenitis |
| | Acute gastritis |
| | Acute gastritis, without bleeding |
| | Acute gastritis, with bleeding |
| | Alcoholic gastritis |
| | Alcoholic gastritis, without bleeding |
| | Alcoholic gastritis, with bleeding |
| | Chronic superficial gastritis |
| | Chronic superficial gastritis, without bleeding |
| | Chronic superficial gastritis, with bleeding |
| | Chronic atrophic gastritis |
| | Chronic atrophic gastritis, without bleeding |
| | Chronic atrophic gastritis, with bleeding |
| | Unspecified chronic gastritis |
| | Unspecified chronic gastritis, without bleeding |
| | Unspecified chronic gastritis, with bleeding |
| | Other gastritis |
| | Other gastritis, without bleeding |
| | Other gastritis, with bleeding |
| | Gastritis, unspecified |
| | Gastritis, unspecified, without bleeding |
| | Gastritis, unspecified, with bleeding |
| | Duodenitis |
| | Duodenitis, without bleeding |
| | Duodenitis, with bleeding |
| | Gastroduodenitis, unspecified |
| | Gastroduodenitis, unspecified, without bleeding |
| | Gastroduodenitis, unspecified, with bleeding |
