K20-K31 · 11 Entries
K20EsophagitisCategory · further specificity requiredK21Gastro-esophageal reflux diseaseCategory · further specificity requiredK22Other diseases of esophagusCategory · further specificity requiredK23Disorders of esophagus in diseases classified elsewhereBillable / specificK25Gastric ulcerCategory · further specificity requiredK26Duodenal ulcerCategory · further specificity requiredK27Peptic ulcer, site unspecifiedCategory · further specificity requiredK28Gastrojejunal ulcerCategory · further specificity requiredK29Gastritis and duodenitisCategory · further specificity requiredK30Functional dyspepsiaBillable / specificK31Other diseases of stomach and duodenumCategory · further specificity requiredhiatus hernia (K44.-)