In DSM-III, this category is called Atypical Tic Disorder

This category is for the diagnosis of tics that cannot be adequately classified in any of the previous categories.


In DSM-IV, this category is called Tic Disorder Not Otherwise Specified

This category is for disorders characterized by tics that do not meet the criteria for a specific Tic Disorder. Examples include tics lasting less than 4 weeks or tics with an onset after age 18 years.


This category applies to presentations in which symptoms characteristic of a tic disorder that cause clinically significant distress or impairment in social, occupational, or other important areas of functioning predominate but do not meet the full criteria for a tic disorder or for any of the disorders in the neurodevelopmental disorders diagnostic class. The unspecified tic disorder category is used in situations in which the clinician chooses not to specify the reason that the criteria are not met for a tic disorder or for a specific neurodevelopmental disorder, and includes presentations in which there is insufficient information to make a more specific diagnosis.

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