ICD-10-CM · Chapter 11 · K00-K95
K29 Gastritis and duodenitis
Excludes 1 (cannot be coded together)
- eosinophilic gastritis or gastroenteritis (K52.81)
- Zollinger-Ellison syndrome (E16.4)
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| K29..0 | Acute gastritis | No |
| K29..00 | Acute gastritis without bleeding | Yes |
| K29..01 | Acute gastritis with bleeding | Yes |
| K29..2 | Alcoholic gastritis | No |
| K29..20 | Alcoholic gastritis without bleeding | Yes |
| K29..21 | Alcoholic gastritis with bleeding | Yes |
| K29..3 | Chronic superficial gastritis | No |
| K29..30 | Chronic superficial gastritis without bleeding | Yes |
| K29..31 | Chronic superficial gastritis with bleeding | Yes |
| K29..4 | Chronic atrophic gastritis | No |
| K29..40 | Chronic atrophic gastritis without bleeding | Yes |
| K29..41 | Chronic atrophic gastritis with bleeding | Yes |
| K29..5 | Unspecified chronic gastritis | No |
| K29..50 | Unspecified chronic gastritis without bleeding | Yes |
| K29..51 | Unspecified chronic gastritis with bleeding | Yes |
| K29..6 | Other gastritis | No |
| K29..60 | Other gastritis without bleeding | Yes |
| K29..61 | Other gastritis with bleeding | Yes |
| K29..7 | Gastritis, unspecified | No |
| K29..70 | Gastritis, unspecified, without bleeding | Yes |
| K29..71 | Gastritis, unspecified, with bleeding | Yes |
| K29..8 | Duodenitis | No |
| K29..80 | Duodenitis without bleeding | Yes |
| K29..81 | Duodenitis with bleeding | Yes |
| K29..9 | Gastroduodenitis, unspecified | No |
| K29..90 | Gastroduodenitis, unspecified, without bleeding | Yes |
| K29..91 | Gastroduodenitis, unspecified, with bleeding | Yes |
Last reviewed: September 2026