Preferred Label : Hereditary hyperekplexia;
ICD-11 definition : Hereditary hyperekplexia is a hereditary neurological disorder characterized by excessive
startle responses. Hereditary hyperekplexia manifests shortly after birth with violent
jerking to noise and touch, and massive and sustained stiffening of the trunk and
limbs, clenching fists, and attacks of a high-frequency trembling. Newborns are at
risk for sudden infant death due to laryngospasm and cardiorespiratory failure.;
ICD-11 synonym : Congenital stiff man syndrome; Stiff baby syndrome; Familial Startle disease; Kok disease; Hereditary hyperexplexia; Hyperekplexia;
Origin ID : 988250063;
Automatic exact mappings (from CISMeF team)
Currated CISMeF NLP mapping
Validated automatic mappings to NTBT
Hereditary hyperekplexia is a hereditary neurological disorder characterized by excessive
startle responses. Hereditary hyperekplexia manifests shortly after birth with violent
jerking to noise and touch, and massive and sustained stiffening of the trunk and
limbs, clenching fists, and attacks of a high-frequency trembling. Newborns are at
risk for sudden infant death due to laryngospasm and cardiorespiratory failure.