Helicobacter-pylori associated duodenal ulcer

Definition

Helicobacter pylori (H. pylori) is a gram-negative bacillus that is found in the mucous layer overlying gastric epithelium, within epithelial cells and attached to mucous cells, leading to inflammation. In the case of duodenal ulcers, H. pylori is believed to infect the gastric antrum or ectopic gastric mucosa in the duodenum. This is associated with increased acid production and duodenal ulceration.

Also indexed as

Nearby in Duodenal ulcer

• DA63.0Duodenal erosion
• DA63.2Helicobacter-pylori associated and drug-induced duodenal ulcer
• DA63.3Stress ulcer of duodenum
• DA63.4Eosinophilic duodenal ulcer
• DA63.5Duodenal ulcer due to external causes
• DA63.6Infectious duodenal ulcer
• 4B4YOther specified diseases of the immune system
• 4B4ZDiseases of the immune system, unspecified