Catalog

Hereditary continuous muscle fibre activity

No MMS code

Link to WHO Definition

Hereditary continuous muscle fibre activity – http://id.who.int/icd/entity/1034981351

Generalised peripheral nerve hyperexcitability are a heterogeneous group of disorders presenting as involuntary, continuous muscle overactivity. The clinical presentation can include muscle cramps, fasciculations, myokymia (undulating movements of the skin surface), and pseudomyotonia (delayed relaxation after a contraction). There are many peripheral nerve hyperexcitability syndromes, with different pathogenesis that include both genetic and acquired disorders. The most well-known is Isaacs syndrome, often called acquired neuromyotonia.