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ICD-10 Codes Sections (K20-K31)

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

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