K31Other diseases of stomach and duodenum
ICD-10-CM category (non-billable header) code — part of Diseases of esophagus, stomach and duodenum (K20-K31)
Coding Notes
Includes
- functional disorders of stomach
Excludes2 (not part of this condition — may code both)
- diabetic gastroparesis (E08.43, E09.43, E10.43, E11.43, E13.43)
- diverticulum of duodenum (K57.00-K57.13)
Subcategories (12)
- K31.0 Acute dilatation of stomach
- K31.1 Adult hypertrophic pyloric stenosis
- K31.2 Hourglass stricture and stenosis of stomach
- K31.3 Pylorospasm, not elsewhere classified
- K31.4 Gastric diverticulum
- K31.5 Obstruction of duodenum
- K31.6 Fistula of stomach and duodenum
- K31.7 Polyp of stomach and duodenum
- K31.8 Other specified diseases of stomach and duodenum
- K31.9 Disease of stomach and duodenum, unspecified
- K31.A Gastric intestinal metaplasia
- K31.B Hypertrophic pyloric stenosis, in childhood