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90 Gastroduodenitis, unspecified, without bleeding

K29.91 Gastroduodenitis, unspecified, with bleeding

K30 Dyspepsia

Includes: indigestion

Excludes1: heartburn (R12)

nervous dyspepsia (F45.8)

neurotic dyspepsia (F45.8)

psychogenic dyspepsia (F45.8)

K31 Other diseases of stomach and duodenum

Includes: functional disorders of stomach

Excludes2: diabetic gastroparesis (E08.43, E09.43, E10.43, E11.43, E13.43)

diverticulum of duodenum (K57.00-K57.11)

K31.0 Acute dilatation of stomach

Acute distention of stomach

K31.1 Adult hypertrophic pyloric stenosis

Pyloric stenosis NOS

Excludes1: congenital or infantile pyloric stenosis (Q40.0)

K31.2 Hourglass stricture and stenosis of stomach

Excludes1: congenital hourglass stomach (Q40.2)

hourglass contraction of stomach (K31.89)

K31.3 Pylorospasm, not elsewhere classified

Excludes1: congenital or infantile pylorospasm (Q40.0)

neurotic pylorospasm (F45.8)

psychogenic pylorospasm (F45.8)

K31.4 Gastric diverticulum

Excludes1: congenital diverticulum of stomach (Q40.2)

K31.5 Obstruction of duodenum

Constriction of duodenum

Duodenal ileus (chronic)

Stenosis of duodenum

Stricture of duodenum

Volvulus of duodenum

Excludes1: congenital stenosis of duodenum (Q41.0)

K31.6 Fistula of stomach and duodenum

Gastrocolic fistula

Gastrojejunocolic fistula

K31.7 Polyp of stomach and duodenum

Excludes1: adenomatous polyp of stomach (D13.1)

K31.8 Other specified diseases of stomach and duodenum

K31.81 Angiodysplasia of stomach and duodenum

K31.811 Angiodysplasia of stomach and duodenum with bleeding

K31.819 Angiodysplasia of stomach and duodenum without bleeding

Angiodysplasia