K20 Esophagitis

K21 Gastro-esophageal Reflux Disease

K22 Other Diseases of Esophagus

 K22.0 Achalasia of cardia

K22.1

Ulcer of esophagus

K22.2 Esophageal obstruction

K22.3 Perforation of esophagus

K22.4 Dyskinesia of esophagus

K22.6

Gastro-esophageal laceration-hemorrhage syndrome (MALLORY-WEISS SYNDROME)

K22.8

Other specified diseases of esophagus

K22.9

Disease of esophagus, unspecified

K23 Disorders of Esophagus in Diseases Classified Elsewhere

K25 Gastric Ulcer

K26 Duodenal Ulcer

K27 Peptic Ulcer, Site Unspecified

K28 Gastrojejunal Ulcer

K29 Gastritis & Duodenitis

K30 Functional Dyspepsia

K31.0

Acute dilatation of stomach

K31.1

Adult hypertrophic pyloric stenosis

K31.2 Hourglass stricture & stenosis of stomach

K31.3 Pylorospasm, not elsewhere classified

K31.4

Gastric diverticulum

K31.5 Obstruction

of duodenum

K31.6

Fistula of stomach & duodenum

K31.7

Polyp of stomach & duodenum

K31.8

Other specified diseases of stomach & duodenum

K31.9 Disease of stomach & duodenum, unspecified