DA21.22

ICD-11 MMS 2026-01

Spastic peristalsis

Description

This is a motility disorder of oesophagus characterised by hypercontractile spastic peristalsis, known as "jackhammer oesophagus" in the presence of normal lower oesophageal sphincter (LES) relaxation. This category also includes diffuse oesophageal spasm (DES) with uncoordinated contraction characterised by reduced distal latency on oesophageal manometry.

Index terms

  • Spastic peristalsis
  • Diffuse oesophageal spasm
  • Hypercontractile oesophagus
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  • Jackhammer oesophagus
  • Oesophageal spasm
  • Oesophagospasm
  • Spasm of oesophagus

Inclusions

  • Diffuse oesophageal spasm
  • Spasm of oesophagus

Exclusions from above levels

  • DA21.0 – Achalasia
  • DA22 – Gastro-oesophageal reflux disease
  • 01 – Certain infectious or parasitic diseases
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  • 02 – Neoplasms
  • 05 – Endocrine, nutritional or metabolic diseases
  • 06 – Mental, behavioural or neurodevelopmental disorders
  • 18 – Complications of pregnancy, childbirth and the puerperium
  • 22 – Injury, poisoning or certain other consequences of external causes

Sibling codes

  • DA21.20 – Hypertensive peristalsis
  • DA21.21 – Hypotensive peristalsis
  • DA21.2Y – Other specified disorder of oesophageal peristalsis
  • DA21.2Z – Disorder of oesophageal peristalsis, unspecified

Foundation entity

Spastic peristalsis – http://id.who.int/icd/entity/483548056

Allowed postcoordination axes

Part of: DA21.2: Disorder of oesophageal peristalsis › DA21: Motility disorders of oesophagus › 13: Diseases of the digestive system