Non-specific code icon 2014 ICD-10-CM Diagnosis Code K26

Duodenal ulcer

  • K26 is not a billable ICD-10-CM diagnosis code and cannot be used to indicate a medical diagnosis as there are 9 codes below K26 that describe this diagnosis in greater detail.
  • ICD-10-CM codes become active beginning October 1, 2015, therefore, this and all ICD-10-CM diagnosis codes should only be used for training or planning purposes until then.
Clinical Information
  • A disorder characterized by a circumscribed, inflammatory and necrotic erosive lesion on the mucosal surface of the duodenal wall.
  • A peptic ulcer located in the duodenum.
  • An ulcer in the duodenal wall.
  • Peptic ulcer located in the duodenum, the shortest and widest portion of the small intestine adjacent to the pylorus of the stomach.
Use Additional
  • code to identify:
  • alcohol abuse and dependence (F10.-)
Type 1 Excludes
  • erosion (acute) of duodenum
  • duodenum ulcer (peptic)
  • postpyloric ulcer (peptic)