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ICD-10 diagnosis code

K31 Other diseases of stomach and duodenum

This page in Swedish

K31 is the ICD-10 code for Other diseases of stomach and duodenum. 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 K31 includes

Conditions and terms that are coded here.

  • functional disorders of stomach

What K31 excludes

Conditions that look similar but belong under another code.

Subcodes of K31

K31 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

K31Andra sjukdomar i magsäcken och tolvfingertarmen

DenmarkICD-10-DK

DK31Andre sygdomme i mavesæk og duodenum

FinlandICD-10-FI

K31Muut mahalaukun ja pohjukaissuolen sairaudet

GermanyICD-10-GM

K31Sonstige Krankheiten des Magens und des Duodenums

FranceICD-10-FR

K31Autres maladies de l'estomac et du duodénum

NetherlandsICD-10-NL

K31overige ziekten van maag en duodenum

United StatesICD-10-CM

Listed through more specific codes:

  • K31.A0Gastric intestinal metaplasia, unspecified

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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