Catalog
Adult-onset sporadic primary dystonia
No MMS code
Link to WHO Definition
Adult-onset sporadic primary dystonia – http://id.who.int/icd/entity/684594660
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 sporadic, the dystonia is the only abnormality of the nervous system apart from tremor and there is no family history. Onset is in adults.