Achalasia and cardiospasm

This code represents a motility disorder of the esophagus characterized by the failure of the lower esophageal sphincter (LES) to relax during swallowing, coupled with the absence of effective esophageal peristalsis. This leads to a functional obstruction at the gastroesophageal junction, causing food and liquid to accumulate in the esophagus.

Use this code for patients diagnosed with achalasia or cardiospasm, which are synonymous terms for this condition. Documentation should clearly state the diagnosis, often supported by findings from esophageal manometry showing aperistalsis and impaired LES relaxation, or barium swallow demonstrating esophageal dilation and a "bird's beak" appearance.

• Do not confuse with other esophageal motility disorders like diffuse esophageal spasm (530.5) or unspecified esophageal spasm (530.84).
• Ensure documentation specifies achalasia or cardiospasm; if only "dysphagia" is noted, further clarification from the provider is needed.
• Consider sequencing this code as the primary diagnosis when it is the reason for the patient's encounter and treatment.