ICD-11 classes
13 Diseases of the digestive system
Diseases of the stomach or the duodenum
Diseases of duodenum
DA51 — Duodenitis
ICD-11 DA51 — Duodenitis
Duodenitis is an injury of duodenal mucosa involves epithelial damage and mucosal inflammation except any epithelial defect. Duodenitis is caused by various factors such as high acid secretion, infectious agents, drugs, chemical agents and the others. Gastric metaplasia (GM) is considered adaptive responses to hyperacidity. Helicobacter pylori can colonized on GM epithelium, and induce duodenitis. Duodenitis is diagnosed by histopathologically and/or endoscopically. Duodenitis is classified as acute and chronic phase by clinical course.
It includes 1 item.
- Inflammation of duodenum
It excludes 1 item.
- Crohn disease (DD70)
Diagnosis with code DA51 contains 9 clarifying diagnoses:
- DA51.0 — Helicobacter-pylori associated duodenitis
- DA51.1 — Eosinophilic duodenitis
- DA51.2 — Lymphocytic duodenitis
- DA51.3 — Allergic duodenitis
- DA51.4 — Duodenitis of unknown aetiology with specific endoscopic or pathologic features
It contains 3 clarifying diagnoses. - DA51.5 — Duodenitis due to external causes
It contains 6 clarifying diagnoses. - DA51.6 — Infectious duodenitis
It contains 3 clarifying diagnoses. - DA51.Y — Other specified duodenitis
- DA51.Z — Duodenitis, unspecified