Duodenal ulcer

Definition

Duodenal ulcer is defined as a distinct breach in the mucosa of the duodenum as a result of caustic effects of acid and pepsin in the lumen. Histologically, duodenal ulcer is identified as necrosis of the mucosa extending through the muscularis mucosae into the submucosa. In the endoscopic or radiological view, there is an appreciable depth of the lesion. When the break of epithelial lining is confined to the mucosa without penetrating through the muscularis mucosae, the superficial lesion is called ‘erosion’.

Exclusions

• Anastomotic ulcer (DA62)

9 subordinate codes

• DA63.0Duodenal erosion
• DA63.1Helicobacter-pylori associated duodenal ulcer
• 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

Nearby in Ulcer of stomach or duodenum

• DA60Gastric ulcer
• DA61Peptic ulcer, site unspecified
• DA62Anastomotic ulcer