CA0H.4

ICD-11 MMS 2026-01

Laryngeal spasm

Description

Laryngeal spasm is a pathological condition that is mainly a spasmodic closure (spasm) of the inlet portion of the larynx or the glottic region. There is an adult-onset and childhood (infant)-onset generally in this disease. There is a difference in the pattern of expression for these two types. In the infant, respiratory arrest is associated with this condition and spasmodic closure of the glottis occurs suddenly, and then breathing returns to original quite rapidly within a few minutes. In adults, the main symptoms of this condition are difficulty breathing or inspiratory stridor rather than a complete respiratory arrest.

Index terms

  • Laryngeal spasm
  • Millar asthma
  • laryngeal stridor
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  • laryngismus
  • laryngospasm
  • stridulous laryngismus
  • Acute spasmodic laryngotracheitis
  • False croup
  • pseudocroup
  • Glottic spasm
  • spasm of glottis
  • Paradoxical vocal fold dysfunction
  • Spasmodic croup
  • stridulous croup
  • Spasmodic laryngotracheitis
  • stridulous laryngotracheitis

Inclusions

  • laryngospasm

Exclusions from above levels

  • CA05.0 – laryngitis: ulcerative
  • CA06.0 – Acute obstructive laryngitis
  • CB62 – Postprocedural subglottic stenosis
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  • MD11.B – stridor: NOS
  • CA22.0 – Chronic obstructive pulmonary disease with acute exacerbation, unspecified
  • 01 – Certain infectious or parasitic diseases
  • 05 – Endocrine, nutritional or metabolic diseases
  • 18 – Complications of pregnancy, childbirth and the puerperium
  • 19 – Certain conditions originating in the perinatal period
  • 20 – Congenital malformations, deformations and chromosomal abnormalities
  • 22 – Injury, poisoning or certain other consequences of external causes

Sibling codes

  • CA0H.0 – Paralysis of vocal cords or larynx
  • CA0H.1 – Polyp of vocal cord or larynx
  • CA0H.2 – Nodules of vocal cords
  • CA0H.3 – Oedema of larynx
  • CA0H.5 – Stenosis of larynx
  • CA0H.Y – Other specified diseases of vocal cords or larynx, not elsewhere classified
  • CA0H.Z – Diseases of vocal cords or larynx, not elsewhere classified, unspecified

Foundation entity

Laryngeal spasm – http://id.who.int/icd/entity/1531260827

Part of: CA0H: Diseases of vocal cords or larynx, not elsewhere classified › 12: Diseases of the respiratory system