ICD-11 definition : A condition in which apparently normal early development is followed by partial or
complete loss of speech and of skills in locomotion and use of hands, together with
deceleration in head growth, usually with an onset between seven and 24 months of
age. Loss of purposive hand movements, hand-wringing stereotypies, and hyperventilation
are characteristic. Social and play development are arrested but social interest tends
to be maintained. Trunk ataxia and apraxia start to develop by age four years and
choreoathetoid movements frequently follow. Severe mental retardation almost invariably
results.;
A condition in which apparently normal early development is followed by partial or
complete loss of speech and of skills in locomotion and use of hands, together with
deceleration in head growth, usually with an onset between seven and 24 months of
age. Loss of purposive hand movements, hand-wringing stereotypies, and hyperventilation
are characteristic. Social and play development are arrested but social interest tends
to be maintained. Trunk ataxia and apraxia start to develop by age four years and
choreoathetoid movements frequently follow. Severe mental retardation almost invariably
results.
Currated CISMeF NLP mapping