FANDOM


DSM-III

For more information, see Stereotyped Movement Disorders

Diagnostic Criteria

A. Age at onset between 2 and 15 years.

B. Presence of recurrent, involuntary, repetitive, rapid, purposeless motor movements affecting multiple muscle groups.

C. Multiple vocal tics.

D. Ability to suppress movements voluntarily for minutes to hours.

E. Variations in the intensity of the symptoms over weeks or months.

F. Duration of more than one year.

Differential Diagnosis

Amphetamine Intoxication, cerebrovascular accidents, Lesch-Nyhan syndrome, Wilson's disease, Sydenham's and Huntington's chorea, multiple sclerosis, Schizophrenia, general paresis, and Organic Mental Disorders may present with abnormal motor movements. These disorders can readily be distinguished from Tic Disorders because they have distinguishing symptoms, signs, clinical course, and physiological abnormalities as revealed by laboratory tests; and none of them have vocalizations similar to the clicks, grunts, yelps, barks, sniffs, coughs, and words of Tourette's Disorder.

DSM-IV

For more information, see Tic Disorders

Diagnostic Criteria

A. Both multiple motor and one or more vocal tics have been present at some time during the illness, although not necessarily concurrently. (A tic is a sudden, rapid, recurrent, nonrhythmic, stereotyped motor movement or vocalization.)

B. The tics occur many times a day (usually in bouts) nearly every day or intermittently throughout a period of more than 1 year, and during this period there was never a tic-free period of more than 3 consecutive months.

C. The disturbance causes marked distress or significant impairment in social, occupational, or other important areas of functioning.

D. The onset is before age 18 years.

E. The disturbance is not due to the direct physiological effects of a substance (e.g., stimulants) or a general medical condition (e.g., Huntington's disease or postviral encephalitis).

DSM-5

For more information, see Tic Disorders

Diagnostic Criteria

Note: A tic is a sudden, rapid, recurrent, nonrhythmic motor movement or vocalization.

A. Both multiple motor and one or more vocal tics have been present at some time during the illness, although not necessarily concurrently.

B. The tics may wax and wane in frequently but have persisted for more than 1 year since first tic onset.

C. Onset is before age 18 years.

D. The disturbance is not attributable to the physiological effects of a substance (e.g., cocaine) or another medical condition (e.g., Huntington's disease, postviral encephalitis).