Catalog

Primary dystonia, familial

No MMS code

Link to WHO Definition

Primary dystonia, familial – http://id.who.int/icd/entity/431810330

Dystonia is a disorder of involuntary muscle contractions, which often appear as abnormal postures, twisting, or repetitive muscle movements. The torso and limbs are commonly affected. As primary and familial, the dystonia is the only abnormality of the nervous system apart from tremor and the disorder has a family history.