Section K20-K31 | Diseases of esophagus stomach duodenum

K20

Code hierarchy

K20 Esophagitis
- K20.0 Eosinophilic esophagitis
- K20.8 Other esophagitis
  - K20.80 Other esophagitis without bleeding
  - K20.81 Other esophagitis with bleeding
- K20.9 Esophagitis, unspecified
  - K20.90 Esophagitis, unspecified without bleeding
  - K20.91 Esophagitis, unspecified with bleeding

Esophagitis

K21

Code hierarchy

K21 Gastro-esophageal reflux disease
- K21.0 Gastro-esophageal reflux disease with esophagitis
  - K21.00 Gastro-esophageal reflux disease with esophagitis, without bleeding
  - K21.01 Gastro-esophageal reflux disease with esophagitis, with bleeding
- K21.9 Gastro-esophageal reflux disease without esophagitis

Gastro-esophageal reflux disease

K22

Code hierarchy

K22 Other diseases of esophagus
- K22.0 Achalasia of cardia
- K22.1 Ulcer of esophagus
  - K22.10 Ulcer of esophagus without bleeding
  - K22.11 Ulcer of esophagus with bleeding
- K22.2 Esophageal obstruction
- K22.3 Perforation of esophagus
- K22.4 Dyskinesia of esophagus
- K22.5 Diverticulum of esophagus, acquired
- K22.6 Gastro-esophageal laceration-hemorrhage syndrome
- K22.7 Barrett's esophagus
  - K22.70 Barrett's esophagus without dysplasia
  - K22.71 Barrett's esophagus with dysplasia
    - K22.710 Barrett's esophagus with low grade dysplasia
    - K22.711 Barrett's esophagus with high grade dysplasia
    - K22.719 Barrett's esophagus with dysplasia, unspecified
- K22.8 Other specified diseases of esophagus
  - K22.81 Esophageal polyp
  - K22.82 Esophagogastric junction polyp
  - K22.89 Other specified disease of esophagus
- K22.9 Disease of esophagus, unspecified

Other diseases of esophagus

K23

Disorders of esophagus in diseases classified elsewhere

K25

Code hierarchy

K25 Gastric ulcer
- K25.0 Acute gastric ulcer with hemorrhage
- K25.1 Acute gastric ulcer with perforation
- K25.2 Acute gastric ulcer with both hemorrhage and perforation
- K25.3 Acute gastric ulcer without hemorrhage or perforation
- K25.4 Chronic or unspecified gastric ulcer with hemorrhage
- K25.5 Chronic or unspecified gastric ulcer with perforation
- K25.6 Chronic or unspecified gastric ulcer with both hemorrhage and perforation
- K25.7 Chronic gastric ulcer without hemorrhage or perforation
- K25.9 Gastric ulcer, unspecified as acute or chronic, without hemorrhage or perforation

Gastric ulcer

K26

Code hierarchy

K26 Duodenal ulcer
- K26.0 Acute duodenal ulcer with hemorrhage
- K26.1 Acute duodenal ulcer with perforation
- K26.2 Acute duodenal ulcer with both hemorrhage and perforation
- K26.3 Acute duodenal ulcer without hemorrhage or perforation
- K26.4 Chronic or unspecified duodenal ulcer with hemorrhage
- K26.5 Chronic or unspecified duodenal ulcer with perforation
- K26.6 Chronic or unspecified duodenal ulcer with both hemorrhage and perforation
- K26.7 Chronic duodenal ulcer without hemorrhage or perforation
- K26.9 Duodenal ulcer, unspecified as acute or chronic, without hemorrhage or perforation

Duodenal ulcer

K27

Code hierarchy

K27 Peptic ulcer, site unspecified
- K27.0 Acute peptic ulcer, site unspecified, with hemorrhage
- K27.1 Acute peptic ulcer, site unspecified, with perforation
- K27.2 Acute peptic ulcer, site unspecified, with both hemorrhage and perforation
- K27.3 Acute peptic ulcer, site unspecified, without hemorrhage or perforation
- K27.4 Chronic or unspecified peptic ulcer, site unspecified, with hemorrhage
- K27.5 Chronic or unspecified peptic ulcer, site unspecified, with perforation
- K27.6 Chronic or unspecified peptic ulcer, site unspecified, with both hemorrhage and perforation
- K27.7 Chronic peptic ulcer, site unspecified, without hemorrhage or perforation
- K27.9 Peptic ulcer, site unspecified, unspecified as acute or chronic, without hemorrhage or perforation

Peptic ulcer, site unspecified

K28

Code hierarchy

K28 Gastrojejunal ulcer
- K28.0 Acute gastrojejunal ulcer with hemorrhage
- K28.1 Acute gastrojejunal ulcer with perforation
- K28.2 Acute gastrojejunal ulcer with both hemorrhage and perforation
- K28.3 Acute gastrojejunal ulcer without hemorrhage or perforation
- K28.4 Chronic or unspecified gastrojejunal ulcer with hemorrhage
- K28.5 Chronic or unspecified gastrojejunal ulcer with perforation
- K28.6 Chronic or unspecified gastrojejunal ulcer with both hemorrhage and perforation
- K28.7 Chronic gastrojejunal ulcer without hemorrhage or perforation
- K28.9 Gastrojejunal ulcer, unspecified as acute or chronic, without hemorrhage or perforation

Gastrojejunal ulcer

K29

Code hierarchy

K29 Gastritis and duodenitis
- K29.0 Acute gastritis
  - K29.00 Acute gastritis without bleeding
  - K29.01 Acute gastritis with bleeding
- K29.2 Alcoholic gastritis
  - K29.20 Alcoholic gastritis without bleeding
  - K29.21 Alcoholic gastritis with bleeding
- K29.3 Chronic superficial gastritis
  - K29.30 Chronic superficial gastritis without bleeding
  - K29.31 Chronic superficial gastritis with bleeding
- K29.4 Chronic atrophic gastritis
  - K29.40 Chronic atrophic gastritis without bleeding
  - K29.41 Chronic atrophic gastritis with bleeding
- K29.5 Unspecified chronic gastritis
  - K29.50 Unspecified chronic gastritis without bleeding
  - K29.51 Unspecified chronic gastritis with bleeding
- K29.6 Other gastritis
  - K29.60 Other gastritis without bleeding
  - K29.61 Other gastritis with bleeding
- K29.7 Gastritis, unspecified
  - K29.70 Gastritis, unspecified, without bleeding
  - K29.71 Gastritis, unspecified, with bleeding
- K29.8 Duodenitis
  - K29.80 Duodenitis without bleeding
  - K29.81 Duodenitis with bleeding
- K29.9 Gastroduodenitis, unspecified
  - K29.90 Gastroduodenitis, unspecified, without bleeding
  - K29.91 Gastroduodenitis, unspecified, with bleeding

Gastritis and duodenitis

K30

Functional dyspepsia

K31

Code hierarchy

K31 Other diseases of stomach and duodenum
- K31.0 Acute dilatation of stomach
- K31.1 Adult hypertrophic pyloric stenosis
- K31.2 Hourglass stricture and stenosis of stomach
- K31.3 Pylorospasm, not elsewhere classified
- K31.4 Gastric diverticulum
- K31.5 Obstruction of duodenum
- K31.6 Fistula of stomach and duodenum
- K31.7 Polyp of stomach and duodenum
- 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
  - K31.82 Dieulafoy lesion (hemorrhagic) of stomach and duodenum
  - K31.83 Achlorhydria
  - K31.84 Gastroparesis
  - K31.89 Other diseases of stomach and duodenum
- K31.9 Disease of stomach and duodenum, unspecified
- K31.A Gastric intestinal metaplasia
  - K31.A0 Gastric intestinal metaplasia, unspecified
  - K31.A1 Gastric intestinal metaplasia without dysplasia
    - K31.A11 Gastric intestinal metaplasia without dysplasia, involving the antrum
    - K31.A12 Gastric intestinal metaplasia without dysplasia, involving the body (corpus)
    - K31.A13 Gastric intestinal metaplasia without dysplasia, involving the fundus
    - K31.A14 Gastric intestinal metaplasia without dysplasia, involving the cardia
    - K31.A15 Gastric intestinal metaplasia without dysplasia, involving multiple sites
    - K31.A19 Gastric intestinal metaplasia without dysplasia, unspecified site
  - K31.A2 Gastric intestinal metaplasia with dysplasia
    - K31.A21 Gastric intestinal metaplasia with low grade dysplasia
    - K31.A22 Gastric intestinal metaplasia with high grade dysplasia
    - K31.A29 Gastric intestinal metaplasia with dysplasia, unspecified

Other diseases of stomach and duodenum

Section K20-K31 Diseases of esophagus, stomach and duodenum K20-K31

Excludes-2 for K20-K31:

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