K31.8 is the ICD-10 code for Other specified diseases of stomach and duodenum. It is a four-character subcategory of K31 (Other diseases of stomach and duodenum), the most specific level in the WHO edition. It belongs to the block K20–K31 (Diseases of oesophagus, stomach and duodenum) in Chapter XI, Diseases of the digestive system.
- Code type
- Subcategory (4 characters)
- Chapter
- XI · K00–K93
- Classification
- WHO ICD-10, 2019 version
What K31.8 includes
Conditions and terms that are coded here.
- Achlorhydria
- Gastroptosis
- Hourglass contraction of stomach
K31.8 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
K31.8Andra specificerade sjukdomar i magsäcken och tolvfingertarmen
K31.8Annen spesifisert sykdom i magesekk eller tolvfingertarm
DK318Anden sygdom i ventrikel eller duodenum
- DK318AAchylia gastrica
- DK318BDysfunctio pylori
- DK318CEctasia ventriculi
- DK318DGastroptosis
- DK318EHyperchlorhydria
- DK318FHypersecretio gastrica
- DK318GProlapsus mucosae pylori
- DK318HRetentio ventriculi
- and 1 more national subcodes
K31.8Muu maha(lauku)n tai pohjukaissuolen sairaus
K31.8Sonstige näher bezeichnete Krankheiten des Magens und des Duodenums
- K31.81Angiodysplasie des Magens und des Duodenums ohne Angabe einer Blutung
- K31.82Angiodysplasie des Magens und des Duodenums mit Blutung
- K31.88Sonstige näher bezeichnete Krankheiten des Magens und des Duodenums
K31.8Autres maladies précisées de l'estomac et du duodénum
K31.8overige gespecificeerde ziekten van maag en duodenum
Listed through more specific codes:
- K31.82Dieulafoy lesion (hemorrhagic) of stomach and duodenum
- K31.83Achlorhydria
- K31.84Gastroparesis
- K31.89Other diseases of stomach and duodenum
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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