K29: Gastritis and duodenitis
Codes under K29 (Gastritis and duodenitis). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| K29.0 | Acute gastritis | — |
| K29.0 | Acute gastritis | — |
| K29.00 | Acute gastritis without bleeding | ✓ |
| K29.00 | Acute gastritis without bleeding | ✓ |
| K29.01 | Acute gastritis with bleeding | ✓ |
| K29.01 | Acute gastritis with bleeding | ✓ |
| K29.2 | Alcoholic gastritis | — |
| K29.2 | Alcoholic gastritis | — |
| K29.3 | Chronic superficial gastritis | — |
| K29.3 | Chronic superficial gastritis | — |
| K29.4 | Chronic atrophic gastritis | — |
| K29.4 | Chronic atrophic gastritis | — |
| K29.5 | Unspecified chronic gastritis | — |
| K29.5 | Unspecified chronic gastritis | — |
| K29.6 | Other gastritis | — |
| K29.6 | Other gastritis | — |
| K29.7 | Gastritis, unspecified | — |
| K29.7 | Gastritis, unspecified | — |
| K29.8 | Duodenitis | — |
| K29.8 | Duodenitis | — |
| K29.9 | Gastroduodenitis, unspecified | — |
| K29.9 | Gastroduodenitis, unspecified | — |
| K29.20 | Alcoholic gastritis without bleeding | ✓ |
| K29.20 | Alcoholic gastritis without bleeding | ✓ |
| K29.21 | Alcoholic gastritis with bleeding | ✓ |
| K29.21 | Alcoholic gastritis with bleeding | ✓ |
| K29.30 | Chronic superficial gastritis without bleeding | ✓ |
| K29.30 | Chronic superficial gastritis without bleeding | ✓ |
| K29.31 | Chronic superficial gastritis with bleeding | ✓ |
| K29.31 | Chronic superficial gastritis with bleeding | ✓ |
| K29.40 | Chronic atrophic gastritis without bleeding | ✓ |
| K29.40 | Chronic atrophic gastritis without bleeding | ✓ |
| K29.41 | Chronic atrophic gastritis with bleeding | ✓ |
| K29.41 | Chronic atrophic gastritis with bleeding | ✓ |
| K29.50 | Unspecified chronic gastritis without bleeding | ✓ |
| K29.50 | Unspecified chronic gastritis without bleeding | ✓ |
| K29.51 | Unspecified chronic gastritis with bleeding | ✓ |
| K29.51 | Unspecified chronic gastritis with bleeding | ✓ |
| K29.60 | Other gastritis without bleeding | ✓ |
| K29.60 | Other gastritis without bleeding | ✓ |
| K29.61 | Other gastritis with bleeding | ✓ |
| K29.61 | Other gastritis with bleeding | ✓ |
| K29.70 | Gastritis, unspecified, without bleeding | ✓ |
| K29.70 | Gastritis, unspecified, without bleeding | ✓ |
| K29.71 | Gastritis, unspecified, with bleeding | ✓ |
| K29.71 | Gastritis, unspecified, with bleeding | ✓ |
| K29.80 | Duodenitis without bleeding | ✓ |
| K29.80 | Duodenitis without bleeding | ✓ |
| K29.81 | Duodenitis with bleeding | ✓ |
| K29.81 | Duodenitis with bleeding | ✓ |
| K29.90 | Gastroduodenitis, unspecified, without bleeding | ✓ |
| K29.90 | Gastroduodenitis, unspecified, without bleeding | ✓ |
| K29.91 | Gastroduodenitis, unspecified, with bleeding | ✓ |
| K29.91 | Gastroduodenitis, unspecified, with bleeding | ✓ |
Frequently asked questions
What is ICD-10-CM code K29?
K29 is an ICD-10-CM category covering Gastritis and duodenitis. It contains 54 more specific diagnosis codes, 36 of which are billable.
Is K29 a billable code?
No — K29 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example K29.0 — Acute gastritis). 36 of the 54 codes under K29 are billable.
What codes fall under K29?
K29 includes K29.0, K29.0, K29.00, K29.00, K29.01, plus 49 more. See the full list with descriptions and billable status above.
More free billing tools: all ICD-10 categories · ICD-10 search · denial codes · Medicare fees
Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
Code the diagnosis right
Join providers across the country delivering modern virtual care with CareNiva. Free to start, ready in minutes.
100% Satisfaction Guaranteed — try it risk-free