Duodenitis

Definition

Duodenitis is an injury of duodenal mucosa that involves epithelial damage and mucosal inflammation except for any epithelial defect. Duodenitis is caused by various factors such as high acid secretion, infectious agents, drugs, chemical agents and others. Gastric metaplasia (GM) is considered adaptive responses to hyperacidity. Helicobacter pylori can be colonized on GM epithelium, and induce duodenitis. Duodenitis is diagnosed histopathologically and/or endoscopically. Duodenitis is classified as acute and chronic phase by clinical course.

Inclusions

• Inflammation of duodenum

Exclusions

• Crohn disease (DD70)

9 subordinate codes

• DA51.0Helicobacter-pylori associated duodenitis
• DA51.1Eosinophilic duodenitis
• DA51.2Lymphocytic duodenitis
• DA51.3Allergic duodenitis
• DA51.4Duodenitis of unknown aetiology with specific endoscopic or pathologic features
• DA51.5Duodenitis due to external causes
• DA51.6Infectious duodenitis
• 4B4YOther specified diseases of the immune system
• 4B4ZDiseases of the immune system, unspecified

Nearby in Diseases of duodenum

• DA50Acquired anatomical alterations of the duodenum
• DA52Vascular disorders of the duodenum
• DA53Duodenal polyp
• Neoplasms of the duodenum
• 4B4YOther specified diseases of the immune system
• 4B4ZDiseases of the immune system, unspecified