An esophageal disease that is characterized by an inability of the esophagus to move food toward the stomach resulting from the lower esophogeal sphincter not fully relaxing during swallowing.
synonyms:
UMLS_CUI:C0014848,
achalasia of cardia,
NCI:C84699,
ICD9CM:530.0,
Lack of reflex relaxation of lower oesophageal sphincter,