K20 is the ICD-10 code for Oesophagitis. It is a three-character category that is not subdivided further. 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 K20 includes
Conditions and terms that are coded here.
- Abscess of oesophagus
- Oesophagitis:
- NOS
- chemical
- peptic
What K20 excludes
Conditions that look similar but belong under another code.
Coding notes
- Use additional external cause code (Chapter XX), if desired, to identify cause.
K20 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
K20Øsofagitt
DK20Betændelse i spiserøret
- DK209Øsofagitis UNS
K20Ruokatorvitulehdus
K20Ösophagitis
- K20.0Eosinophile Ösophagitis
- K20.1Radiogene Ösophagitis
- K20.8Sonstige näher bezeichnete Ösophagitis
- K20.9Ösophagitis, nicht näher bezeichnet
K20Œsophagite
K20oesofagitis
Listed through more specific codes:
- K20.0Eosinophilic esophagitis
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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