Excessive startle reflex

Description

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

Index terms

Excessive startle reflex
Hereditary hyperekplexia due to Glycine receptor subunit mutations
Hyperekplexia due to neuropsychiatric disorder

Exclusions from above levels

6A06 – Stereotyped movement disorder
05 – Endocrine, nutritional or metabolic diseases
18 – Complications of pregnancy, childbirth and the puerperium

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19 – Certain conditions originating in the perinatal period
22 – Injury, poisoning or certain other consequences of external causes

Sibling codes

8A07.0 – Stereotypies
8A07.1 – Akathisia

Foundation entity

Excessive startle reflex – http://id.who.int/icd/entity/334083632

Part of: 8A07: Certain specified movement disorder › 08: Diseases of the nervous system