ICD-10 diagnosis code

K29 Gastritis and duodenitis

K29 is the ICD-10 code for Gastritis and duodenitis. It is a three-character category divided into 10 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block K20–K31 (Diseases of oesophagus, stomach and duodenum) in Chapter XI, Diseases of the digestive system.

Code type: Category (3 characters)
Chapter: XI · K00–K93
Classification: WHO ICD-10, 2019 version

What K29 excludes

Conditions that look similar but belong under another code.

eosinophilic gastritis or gastroenteritis K52.8
Zollinger-Ellison syndrome E16.4

Subcodes of K29

K29 in national editions

Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.

SwedenICD-10-SE

K29Inflammation i magsäcken och tolvfingertarmen

DenmarkICD-10-DK

DK29Gastroduodenitis

FinlandICD-10-FI

K29Mahalaukun ja/tai pohjukaissuolen tulehdus

GermanyICD-10-GM

K29Gastritis und Duodenitis

FranceICD-10-FR

K29Gastrite et duodénite

NetherlandsICD-10-NL

K29gastritis en duodenitis

Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.

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