Catalog
Tic disorders
Link to WHO Definition
Tic disorders – http://id.who.int/icd/entity/1894671574
Disorders characterized by brief, sudden, repetitive movements (motor tics) or utterances (phonic or vocal tics) that are temporarily suppressible and are usually preceded by a strong urge to perform the tic. The most common cause of childhood-onset tics is Tourette Syndrome.