Helicobacter-pylori associated duodenal ulcer

Description

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.

Index terms

Helicobacter-pylori associated duodenal ulcer

Exclusions from above levels

DA62 – Anastomotic ulcer
01 – Certain infectious or parasitic diseases
02 – Neoplasms

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05 – Endocrine, nutritional or metabolic diseases
06 – Mental, behavioural or neurodevelopmental disorders
18 – Complications of pregnancy, childbirth and the puerperium
22 – Injury, poisoning or certain other consequences of external causes

Sibling codes

DA63.0 – Duodenal erosion
DA63.2 – Helicobacter-pylori associated and drug-induced duodenal ulcer
DA63.3 – Stress ulcer of duodenum
DA63.4 – Eosinophilic duodenal ulcer
DA63.5 – Duodenal ulcer due to external causes
DA63.6 – Infectious duodenal ulcer
DA63.Y – Other specified duodenal ulcer
DA63.Z – Duodenal ulcer, unspecified

Foundation entity

Helicobacter-pylori associated duodenal ulcer – http://id.who.int/icd/entity/1358822175

Allowed postcoordination axes

Part of: DA63: Duodenal ulcer › 13: Diseases of the digestive system