2026 ICD-10-CM Diagnosis Code K31.89Other diseases of stomach and duodenum

Alternate terms and clinical phrases that map to this code.

Filter synonyms:

• Abnormal gastric motility
• Achylia gastrica
• Acquired deformity of abdomen
• Acquired deformity of duodenum
• Acquired megaduodenum
• Acute gastric ulcer with hemorrhage
• Acute gastric ulcer with hemorrhage and obstruction
• Acute gastric ulcer with obstruction
• Acute gastric ulcer without hemorrhage AND without perforation
• Acute gastric ulcer without hemorrhage AND without perforation but with obstruction
• Acute gastric volvulus
• Acute peptic ulcer with hemorrhage AND obstruction
• Acute peptic ulcer with obstruction
• Acute peptic ulcer without hemorrhage AND without perforation
• Acute peptic ulcer without hemorrhage AND without perforation but with obstruction
• Atrophy of duodenum
• Chronic gastric ulcer with hemorrhage
• Chronic gastric ulcer with hemorrhage and with obstruction
• Chronic gastric ulcer with hemorrhage and with perforation
• Chronic gastric ulcer with hemorrhage, with perforation and with obstruction
• Chronic gastric ulcer with obstruction
• Chronic gastric ulcer with perforation AND with obstruction
• Chronic gastric ulcer without hemorrhage AND without perforation
• Chronic gastric ulcer without hemorrhage AND without perforation but with obstruction
• Chronic gastric volvulus
• Chronic hypertrophic pyloric gastropathy
• Chronic peptic ulcer with hemorrhage AND obstruction
• Chronic peptic ulcer with hemorrhage AND perforation
• Chronic peptic ulcer with hemorrhage, with perforation AND with obstruction
• Chronic peptic ulcer with obstruction
• Chronic peptic ulcer with perforation AND obstruction
• Chronic peptic ulcer without hemorrhage AND without perforation
• Chronic peptic ulcer without hemorrhage AND without perforation but with obstruction
• Chronic torsion of stomach
• Complication of gastrostomy
• Congestive duodenopathy
• Cyst of stomach
• Deformed duodenal cap
• Delayed perforation of stomach
• Disease caused by Heterocheiloidea
• Disorder of function of stomach
• Duodenal anastomotic dehiscence
• Duodenal anastomotic leak
• Duodenal stump leak
• Dysmotility of stomach
• Erythematous duodenopathy
• Excessive fluid in stomach
• Extrinsic compression of stomach
• Focal foveolar hyperplasia
• Foveolar hyperplasia
• Gastric anastomotic necrosis
• Gastric anastomotic stricture
• Gastric atonia
• Gastric dilatation-volvulus-torsion syndrome
• Gastric necrosis
• Gastric retention
• Gastric rupture
• Gastric spasm
• Gastric ulcer with hemorrhage and obstruction
• Gastric ulcer with hemorrhage, with perforation and with obstruction
• Gastric ulcer without hemorrhage AND without perforation but with obstruction
• Gastric volvulus
• Gastric xanthoma
• Gastrointestinal anastomotic dehiscence
• Gastrointestinal anastomotic leak
• Gastrointestinal anastomotic necrosis
• Gastrointestinal hypomotility
• Gastromalacia
• Gastroptosis
• Hourglass contraction of stomach
• Hyperchlorhydria
• Hyperplasia of Brunner glands of duodenum
• Hypertrophic gastropathy
• Hypochlorhydria
• Impaired gastric mucosal defense
• Increased gastric electrical activity
• Increased gastric HCO>3<^-^ secretion
• Increased gastric tonus
• Increased sensitivity of parietal cells to secretagogues
• Infection by Anisakidae
• Infection of stomach caused by Anisakis marina
• Infection of stomach caused by Histoplasma
• Isolated idiopathic granuloma of stomach
• Leakage from pyloroplasty
• Malakoplakia
• Malakoplakia of stomach
• Megaduodenum
• Mesenteroaxial gastric volvulus
• Mixed gastric volvulus
• Mucosal diaphragm of gastric antrum
• Non-hypoproteinemic hypertrophic gastropathy
• Nontraumatic gastric rupture
• Organoaxial gastric volvulus
• Passive congestion of stomach
• Peptic ulcer with perforation AND obstruction
• Peptic ulcer without hemorrhage AND without perforation but with obstruction
• Perforation of stomach
• Portal hypertensive gastropathy
• Postoperative gastric retention
• Primary chronic pseudo-obstruction of gastrointestinal tract
• Primary chronic pseudo-obstruction of stomach
• Retained antrum syndrome
• Small intestine anastomotic dehiscence
• Small intestine anastomotic leak
• Stomach dysfunction following gastrostomy
• Stomach hematoma
• Stricture of anastomosis of gastrointestinal tract
• Ulcerogenic deformed duodenum
• Vascular disorder of the stomach
• Wischnewski spots

Show all 110 synonyms

Alphabetical index entries that point to this code.

• - Achylia gastrica - K31.89

• - Atonia, atony, atonic

  • - stomach - K31.89

• - Calculus, calculi, calculous

  • - stomach - K31.89

• - Congestion, congestive

  • - duodenum - K31.89

  • - stomach - K31.89

• - Contraction (s), contracture, contracted

  • - hourglass

    • - stomach - K31.89

  • - stomach - K31.89

    • - hourglass - K31.89

• - Deformity - Q89.9

  • - duodenal bulb - K31.89

  • - duodenum (congenital) - Q43.9

    • - acquired - K31.89

  • - pylorus (congenital) - Q40.3

    • - acquired - K31.89

  • - stomach (congenital) - Q40.3

    • - acquired - K31.89

• - Degeneration, degenerative

  • - stomach - K31.89

• - Dilatation

  • - stomach - K31.89

• - Disease, diseased - See Also: Syndrome;

  • - duodenum - K31.9

    • - specified NEC - K31.89

  • - Rossbach's (hyperchlorhydria) - K31.89

  • - stomach - K31.9

    • - specified NEC - K31.89

• - Distension, distention

  • - stomach - K31.89

• - Dysfunction

  • - stomach - K31.89

• - Engorgement

  • - stomach - K31.89

• - Fish hook stomach - K31.89

• - Gastroliths - K31.89

• - Gastromalacia - K31.89

• - Gastropathy - K31.9

  • - congestive portal (see also, Hypertension, portal) - K31.89

  • - portal hypertensive (see also, Hypertension, portal) - K31.89

  • - specified NEC - K31.89

• - Gastroptosis - K31.89

• - Gastrospasm (neurogenic) (reflex) - K31.89

• - Gastrostenosis - K31.89

• - Gastrosuccorrhea (continuous) (intermittent) - K31.89

• - Hourglass (contracture) - See Also: Contraction, hourglass;

  • - stomach - K31.89

• - Hyperacidity (gastric) - K31.89

• - Hyperactive, hyperactivity - F90.9

  • - gastrointestinal - K31.89

  • - stomach - K31.89

• - Hyperchlorhydria - K31.89

• - Hyperemia (acute) (passive) - R68.89

  • - stomach - K31.89

• - Hypermobility, hypermotility

  • - stomach - K31.89

• - Hypersecretion

  • - gastric - K31.89

• - Hypertension, hypertensive (accelerated) (benign) (essential) (idiopathic) (malignant) (systemic) - I10

  • - portal (due to chronic liver disease) (idiopathic) - K76.6

    • - gastropathy - K31.89

• - Hypertony, hypertonia, hypertonicity

  • - stomach - K31.89

• - Hypertrophy, hypertrophic

  • - duodenum - K31.89

  • - stomach - K31.89

• - Hypoacidity, gastric - K31.89

• - Hypochlorhydria - K31.89

• - Hypomotility

  • - gastrointestinal (tract) - K31.89

  • - stomach - K31.89

• - Indigestion (acid) (bilious) (functional) - K30

  • - catarrhal - K31.89

• - Inertia

  • - stomach - K31.89

• - Insufficiency, insufficient

  • - pyloric - K31.89

• - Irritable, irritability - R45.4

  • - stomach - K31.89

• - Irritation

  • - gastric - K31.89

  • - stomach - K31.89

• - Malfunction - See Also: Dysfunction;

  • - gastroenteric - K31.89

• - Malposition

  • - stomach - K31.89

• - Megalogastria (acquired) - K31.89

• - Necrosis, necrotic (ischemic) - See Also: Gangrene;

  • - stomach - K31.89

• - Obstruction, obstructed, obstructive

  • - stomach NEC - K31.89

• - Prolapse, prolapsed

  • - gastric (mucosa) - K31.89

  • - stomach - K31.89

• - Ptosis - See Also: Blepharoptosis;

  • - gastric - K31.89

  • - stomach - K31.89

• - Redundant, redundancy

  • - pylorus - K31.89

  • - stomach - K31.89

• - Reichmann's disease or syndrome - K31.89

• - Retention - See Also: Retained;

  • - gastric - K31.89

• - Rossbach's disease - K31.89

• - Rupture, ruptured

  • - duodenal stump - K31.89

  • - stomach (nontraumatic) (spontaneous) - K31.89

• - Sclerosis, sclerotic

  • - stomach - K31.89

• - Softening

  • - stomach - K31.89

• - Spasm (s), spastic, spasticity - See Also: condition; - R25.2

  • - gastrointestinal (tract) - K31.89

  • - pylorus NEC - K31.3

    • - adult hypertrophic - K31.89

  • - stomach - K31.89

• - Stricture - See Also: Stenosis;

  • - stomach - K31.89

• - Subacidity, gastric - K31.89

• - Syndrome - See Also: Disease;

  • - dumping (postgastrectomy) - K91.1

    • - nonsurgical - K31.89

• - Tachygastria - K31.89

• - Volvulus (bowel) (colon) (intestine) - K56.2

  • - stomach (due to absence of gastrocolic ligament) - K31.89

• - Vomiting - R11.10

  • - functional - K31.89

References for this code in the External Cause of Injuries Index.

• Achylia gastrica
• Atonia, atony, atonic
• stomach
• Calculus, calculi, calculous
• stomach
• Congestion, congestive
• duodenum
• Congestion, congestive
• stomach
• Contraction(s), contracture, contracted
• hourglass
• stomach
• Contraction(s), contracture, contracted
• stomach
• Contraction(s), contracture, contracted
• stomach
• hourglass
• Deformity
• duodenal bulb
• Deformity
• duodenum (congenital)
• acquired
• Deformity
• pylorus (congenital)
• acquired
• Deformity
• stomach (congenital)
• acquired
• Degeneration, degenerative
• stomach
• Dilatation
• stomach
• Disease, diseased
• duodenum
• specified NEC
• Disease, diseased
• Rossbach's (hyperchlorhydria)
• Disease, diseased
• stomach
• specified NEC
• Distension, distention
• stomach
• Dysfunction
• stomach
• Engorgement
• stomach
• Fish hook stomach
• Gastroliths
• Gastromalacia
• Gastropathy
• congestive portal (see also, Hypertension, portal)
• Gastropathy
• portal hypertensive (see also, Hypertension, portal)
• Gastropathy
• specified NEC
• Gastroptosis
• Gastrospasm(neurogenic) (reflex)
• Gastrostenosis
• Gastrosuccorrhea(continuous) (intermittent)
• Hourglass(contracture)
• stomach
• Hyperacidity(gastric)
• Hyperactive, hyperactivity
• gastrointestinal
• Hyperactive, hyperactivity
• stomach
• Hyperchlorhydria
• Hyperemia(acute) (passive)
• stomach
• Hypermobility, hypermotility
• stomach
• Hypersecretion
• gastric
• Hypertension, hypertensive(accelerated) (benign) (essential) (idiopathic) (malignant) (systemic)
• portal (due to chronic liver disease) (idiopathic)
• gastropathy
• Hypertony, hypertonia, hypertonicity
• stomach
• Hypertrophy, hypertrophic
• duodenum
• Hypertrophy, hypertrophic
• stomach
• Hypoacidity, gastric
• Hypochlorhydria
• Hypomotility
• gastrointestinal (tract)
• Hypomotility
• stomach
• Indigestion(acid) (bilious) (functional)
• catarrhal
• Inertia
• stomach
• Insufficiency, insufficient
• pyloric
• Irritable, irritability
• stomach
• Irritation
• gastric
• Irritation
• stomach
• Malfunction
• gastroenteric
• Malposition
• stomach
• Megalogastria(acquired)
• Necrosis, necrotic(ischemic)
• stomach
• Obstruction, obstructed, obstructive
• stomach NEC
• Prolapse, prolapsed
• gastric (mucosa)
• Prolapse, prolapsed
• stomach
• Ptosis
• gastric
• Ptosis
• stomach
• Redundant, redundancy
• pylorus
• Redundant, redundancy
• stomach
• Reichmann's disease or syndrome
• Retention
• gastric
• Rossbach's disease
• Rupture, ruptured
• duodenal stump
• Rupture, ruptured
• stomach (nontraumatic) (spontaneous)
• Sclerosis, sclerotic
• stomach
• Softening
• stomach
• Spasm(s), spastic, spasticity
• gastrointestinal (tract)
• Spasm(s), spastic, spasticity
• pylorus NEC
• adult hypertrophic
• Spasm(s), spastic, spasticity
• stomach
• Stricture
• stomach
• Subacidity, gastric
• Syndrome
• dumping (postgastrectomy)
• nonsurgical
• Tachygastria
• Volvulus(bowel) (colon) (intestine)
• stomach (due to absence of gastrocolic ligament)
• Vomiting
• functional