Specific code icon 2014 ICD-10-CM Diagnosis Code K22.0

Achalasia of cardia

  • K22.0 is a billable ICD-10-CM code that can be used to specify a diagnosis.
  • On October 1, 2015 ICD-10-CM will replace ICD-9-CM in the United States, therefore, K22.0 and all other ICD-10-CM codes should only be used for training or planning purposes until then.
Clinical Information
  • A finding indicating the lack of adequate relaxation of the lower esophageal sphincter resulting in difficulty swallowing food.
  • A motility disorder of the esophagus in which the lower esophageal sphincter (near the cardia) fails to relax resulting in functional obstruction of the esophagus, and dysphagia. Achalasia is characterized by a grossly contorted and dilated esophagus (megaesophagus).
  • Failure of normal relaxation of the lower esophageal sphincter associated with uncoordinated contractions of the thoracic esophagus, resulting in functional obstruction and difficulty swallowing.
  • Failure of the smooth muscle fibers of the gastrointestinal tract to relax at any one point of junction of one part with another.
Applicable To
  • Achalasia NOS
  • Cardiospasm
Description Synonyms
  • Achalasia
  • Achalasia of esophagus
  • Acquired achalasia
  • Acquired achalasia of esophagus
Type 1 Excludes
  • congenital cardiospasm (Q39.5)
Mortality Data
  • Between 1999-2007 there were 886 deaths in the United States where ICD-10 K22.0 was indicated as the underlying cause of death [source: cdc.govlink to cdc.gov]
  • ICD-10 K22.0 as underlying cause of death data broken down by: gender, age, race, year
ICD-10-CM K22.0 is grouped within Diagnostic Related Group(s) (MS-DRG v30.0):
  • 391 Esophagitis, gastroent & misc digest disorders with mcc
  • 392 Esophagitis, gastroent & misc digest disorders without mcc
Convert ICD-10-CM K22.0 to ICD-9-CM
The following ICD-10-CM Index entries contain back-references to ICD-10-CM K22.0: