ICD-11 definition : Congenital myasthenic syndrome is a heterogeneous group of genetically determined
diseases. There are four well-defined categories: Congenital myasthenic syndrome with
presynaptic defect, Synaptic basal lamina-associated CMS, Congenital myasthenia with
postsynaptic defect, CMS with glycosylation deficiency, and the remaining category
is that of unidentified CMS.;
ICD-11 synonym : congenital and developmental myasthenia; developmental myasthenia;
Congenital myasthenic syndrome is a heterogeneous group of genetically determined
diseases. There are four well-defined categories: Congenital myasthenic syndrome with
presynaptic defect, Synaptic basal lamina-associated CMS, Congenital myasthenia with
postsynaptic defect, CMS with glycosylation deficiency, and the remaining category
is that of unidentified CMS.