XI: Diseases of the digestive system
K20-K31: Diseases of oesophagus, stomach and duodenum
Subcodes of K20-K31:
- K20: Oesophagitis
- K21: Gastro-oesophageal reflux disease
- K22: Other diseases of oesophagus
- K23: Disorders of oesophagus in diseases classified elsewhere
- K25: Gastric ulcer
- K26: Duodenal ulcer
- K27: Peptic ulcer, site unspecified
- K28: Gastrojejunal ulcer
- K29: Gastritis and duodenitis
- K30: Functional dyspepsia
- K31: Other diseases of stomach and duodenum
Patient Disclaimer
The information provided on this page is for general educational purposes only. It is not intended for self-diagnosis and does not replace professional medical advice. Always consult your doctor or a qualified healthcare provider with any questions or concerns about your health.
If you see an ICD diagnosis code (e.g., on a medical report), be aware that doctors may also include additional indicators to express diagnostic certainty. Only a healthcare professional can interpret these codes accurately in the context of your individual case.
For a complete understanding of your condition and what the diagnosis means for you, please speak directly with your doctor.