AB31.4

ICD-11 MMS 2026-01

Disembarkment syndrome

Description

Disembarkment syndrome, or Mal de debarquement (MdD) occurs when habituation to unfamiliar motion patterns like traveling on a boat, train, or airplane, becomes resistant to re-adaption on return to stable conditions. It results in an illusion of self motion typically described as rocking, bobbing, or swaying. Brief periods of MdD (hours) are common in healthy individuals, this otherwise natural phenomenon can become persistent in some individuals.

Index terms

  • Disembarkment syndrome
  • Mal de débarquement
  • Sickness of disembarkment

Exclusions from above levels

  • 01 – Certain infectious or parasitic diseases
  • 02 – Neoplasms
  • 05 – Endocrine, nutritional or metabolic diseases
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  • 18 – Complications of pregnancy, childbirth and the puerperium
  • 19 – Certain conditions originating in the perinatal period
  • 22 – Injury, poisoning or certain other consequences of external causes

Sibling codes

  • AB31.0 – Meniere disease
  • AB31.1 – Vestibular migraine
  • AB31.2 – Benign positional paroxysmal vertigo
  • AB31.3 – Superior canal dehiscence syndrome
  • AB31.5 – Autoimmune inner ear disease
  • AB31.6 – Vestibular paroxysmia
  • AB31.7 – Vertiginous syndromes
  • AB31.Y – Other specified episodic vestibular syndrome
  • AB31.Z – Episodic vestibular syndrome, unspecified

Foundation entity

Disembarkment syndrome – http://id.who.int/icd/entity/459420954

Part of: AB31: Episodic vestibular syndrome › 10: Diseases of the ear or mastoid process