ICD-9 Diagnosis Code 536.8

Stomach function dis NEC

Diagnosis Code 536.8

ICD-9: 536.8
Short Description: Stomach function dis NEC
Long Description: Dyspepsia and other specified disorders of function of stomach
This is the 2014 version of the ICD-9-CM diagnosis code 536.8

Code Classification
  • Diseases of the digestive system (520–579)
    • Diseases of esophagus, stomach, and duodenum (530-539)
      • 536 Disorders of function of stomach

Information for Medical Professionals

Convert to ICD-10 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.
  • K30 - Functional dyspepsia

  • Abnormal gastric acidity
  • Achylia gastrica
  • Chronic regurgitation
  • Diminished gastrin secretion
  • Drug-induced dyspepsia
  • Erythematous gastropathy
  • Excessive gastric inhibitory peptide secretion
  • Flatulent dyspepsia
  • Friable mucosa of digestive system organ
  • Gastric motor function disorder
  • Gastric retention
  • Gastric spasm
  • Gastrointestinal hypomotility
  • Granular mucosa of digestive organ structure
  • Hyperchlorhydria
  • Hypochlorhydria
  • Increased gastric bicarbonate secretion
  • Increased gastric motility
  • Indigestion
  • Inhibition of gastric motility
  • Mild dietary indigestion
  • Minimal gastric reflux
  • Moderate gastric reflux
  • Nonulcer dyspepsia
  • Peptic ulcer symptoms
  • Postoperative gastric retention
  • Primary chronic pseudo-obstruction of stomach
  • Rapid gastric emptying
  • Retained antrum syndrome
  • Upset stomach
  • Vagus indigestion

Index of Diseases and Injuries
References found for the code 536.8 in the Index of Diseases and Injuries:

Information for Patients


Also called: Dyspepsia, Upset stomach

Nearly everyone has had indigestion at one time. It's a feeling of discomfort or a burning feeling in your upper abdomen. You may have heartburn or belch and feel bloated. You may also feel nauseated, or even throw up.

You might get indigestion from eating too much or too fast, eating high-fat foods, or eating when you're stressed. Smoking, drinking too much alcohol, using some medicines, being tired, and having ongoing stress can also cause indigestion or make it worse. Sometimes the cause is a problem with the digestive tract, like an ulcer or GERD.

Avoiding foods and situations that seem to cause it may help. Because indigestion can be a sign of a more serious problem, see your health care provider if it lasts for more than two weeks or if you have severe pain or other symptoms. Your health care provider may use x-rays, lab tests, and an upper endoscopy to diagnose the cause. You may need medicines to treat the symptoms.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases

  • Indigestion
  • Taking antacids

[Read More]

Stomach Disorders

Also called: Gastric disorders

Your stomach is an organ between your esophagus and small intestine. It is where digestion of protein begins. The stomach has three tasks. It stores swallowed food. It mixes the food with stomach acids. Then it sends the mixture on to the small intestine.

Most people have a problem with their stomach at one time or another. Indigestion and heartburn are common problems. You can relieve some stomach problems with over-the-counter medicines and lifestyle changes, such as avoiding fatty foods or eating more slowly. Other problems like peptic ulcers or GERD require medical attention.

You should see a doctor if you have any of the following:

  • Blood when you have a bowel movement
  • Severe abdominal pain
  • Heartburn not relieved by antacids
  • Unintended weight loss
  • Ongoing vomiting or diarrhea

NIH: National Institute of Diabetes and Digestive and Kidney Diseases

  • Bezoar
  • Dumping Syndrome - NIH (National Institute of Diabetes and Digestive and Kidney Diseases)
  • Gastrectomy
  • Gastritis
  • Gastroparesis
  • Pyloric stenosis
  • Pyloroplasty
  • Stomach acid test
  • Upper GI and small bowel series

[Read More]
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