The block K20–K31 of ICD-10 is titled “Diseases of oesophagus, stomach and duodenum”. It is part of Chapter XI, Diseases of the digestive system, and holds 11 groups.
What K20–K31 excludes
Conditions that look similar but belong under another code.
- hiatus hernia K44.-
Codes in K20–K31
- K22.0Achalasia of cardia
- K22.1Ulcer of oesophagus
- K22.2Oesophageal obstruction
- K22.3Perforation of oesophagus
- K22.4Dyskinesia of oesophagus
- K22.5Diverticulum of oesophagus, acquired
- K22.6Gastro-oesophageal laceration-haemorrhage syndrome
- K22.7Barrett oesophagus
- K22.8Other specified diseases of oesophagus
- K22.9Disease of oesophagus, unspecified
- K31.0Acute dilatation of stomach
- K31.1Adult hypertrophic pyloric stenosis
- K31.2Hourglass stricture and stenosis of stomach
- K31.3Pylorospasm, not elsewhere classified
- K31.4Gastric diverticulum
- K31.5Obstruction of duodenum
- K31.6Fistula of stomach and duodenum
- K31.7Polyp of stomach and duodenum
- K31.8Other specified diseases of stomach and duodenum
- K31.9Disease of stomach and duodenum, 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.
Look up another code
Stop looking codes up by hand
Docdemic listens to the consultation, writes the note and suggests the diagnosis and procedure codes that fit it, each one checked against your country’s official code list.
Try Docdemic free