ICD-10 Diagnosis Code K20.9

Esophagitis, unspecified

Diagnosis Code K20.9

ICD-10: K20.9
Short Description: Esophagitis, unspecified
Long Description: Esophagitis, unspecified
This is the 2017 version of the ICD-10-CM diagnosis code K20.9

Code Classification
  • Diseases of the digestive system
    • Diseases of esophagus, stomach and duodenum (K20-K31)
      • Esophagitis (K20)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code K20.9 is grouped in the following Diagnostic Related Group(s) (MS-DRG v33.0)


Convert to ICD-9 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.

  • Acute esophagitis
  • Barrett's esophagus
  • Barrett's esophagus with esophagitis
  • Chronic esophagitis
  • Complication of chemotherapy
  • Crohn's disease of esophagus
  • Esophagitis
  • Esophagitis grade I
  • Esophagitis grade II
  • Esophagitis grade III
  • Esophagitis grade IV
  • Esophagitis medicamentosa
  • Esophagitis medicamentosa
  • Esophagitis medicamentosa
  • Gangrenous esophagitis
  • Gastroesophagitis
  • Infective esophagitis
  • Inflammation of esophagus due to chemotherapy
  • Nasogastric tube esophagitis
  • Non-reflux esophagitis
  • Pill esophagitis
  • Pill esophagitis
  • Pill esophagitis caused by quinidine
  • Pill esophagitis caused by tetracycline
  • Postoperative esophagitis
  • Regurgitant esophagitis

Index of Diseases and Injuries
References found for the code K20.9 in the Index of Diseases and Injuries:

Information for Patients

Esophagus Disorders

The esophagus is the tube that carries food, liquids and saliva from your mouth to the stomach. You may not be aware of your esophagus until you swallow something too large, too hot or too cold. You may also become aware of it when something is wrong.

The most common problem with the esophagus is gastroesophageal reflux disease (GERD). It happens when a band of muscle at the end of your esophagus does not close properly. This allows stomach contents to leak back, or reflux, into the esophagus and irritate it. Over time, GERD can cause damage to the esophagus. Other problems include heartburn and cancer.

Treatment depends on the problem. Some get better with over-the-counter medicines or changes in diet. Others may need prescription medicines or surgery.

  • Achalasia
  • Barrett esophagus
  • Bleeding esophageal varices
  • Diet and eating after esophagectomy
  • EGD discharge
  • Esophageal atresia
  • Esophageal manometry
  • Esophageal perforation
  • Esophageal spasm
  • Esophageal stricture - benign
  • Esophagitis
  • Esophagitis - infectious
  • Lower esophageal ring (Schatzki)
  • Mallory-Weiss tear
  • Swallowing problems
  • Tracheoesophageal fistula and esophageal atresia repair
  • Upper GI and small bowel series

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