Movement Disorders [Disease/Finding] Tic Disorders [Disease/Finding] 1023189 Disorders characterized by recurrent TICS that may interfere with speech and other activities. Tics are sudden, rapid, nonrhythmic, stereotyped motor movements or vocalizations which may be exacerbated by stress and are generally attenuated during absorbing activities. Tic disorders are distinguished from conditions which feature other types of abnormal movements that may accompany general medical conditions. (From DSM-IV, 1994) C6078 M0021514 Tic Disorders C0040188 568005 D013981 N0000002950 Tic Disorders Mental Disorders Diagnosed in Childhood [Disease/Finding]