Catalog

Spinal segmental myoclonus

No MMS code

Link to WHO Definition

Spinal segmental myoclonus – http://id.who.int/icd/entity/1958401033

Spinal segmental myoclonus (SSM) is characterised by involuntary, semi-rhythmic contractions of skeletal muscle groups innervated by a limited spinal cord region and the primary abnormality is in the spinal cord.