ICD-11 classes
08 Diseases of the nervous system
Movement disorders
8A07 — Certain specified movement disorder
8A07.2 — Excessive startle reflex

ICD-11 8A07.2 — Excessive startle reflex

Exaggerated startle reaction (eye blinking, muscle jerks, body spasms) that occur in response to unexpected stimuli. May be secondary to hyperkplexia, myoclonic neurological diseases, or neuropsychiatric disorders.

The diagnosis includes nothing.

The diagnosis excludes nothing.

It has no clarifying diagnoses.