Catalog
Chronic phonic tic disorder
Link to WHO Definition
Chronic phonic tic disorder – http://id.who.int/icd/entity/169010223
Chronic phonic tic disorder is characterised by the presence of phonic (vocal) tics over a period of at least one year, although they may not manifest consistently. Phonic tics are defined as sudden, rapid, non-rhythmic, and recurrent vocalizations.