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K20-K31

Diseases of esophagus, stomach and duodenum (K20-K31)

K20 Esophagitis
K21 Gastro-esophageal reflux disease
K22 Other diseases of esophagus
K23 Disorders of esophagus in diseases classified elsewhere Billable
Notes
K25 Gastric ulcer
K26 Duodenal ulcer
K27 Peptic ulcer, site unspecified
K28 Gastrojejunal ulcer
K29 Gastritis and duodenitis
K30 Functional dyspepsia Billable
Notes
K31 Other diseases of stomach and duodenum