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Axis I Disorders

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Updated April 29, 2011

Written or reviewed by a board-certified physician. See About.com's Medical Review Board.

Definition:

The 4th edition of the Diagnostic and Statistical Manual of Mental Disorders(DSM-IV) organizes all psychiatric disorders and other problems into five different categoris (or axes).

For example, Axis I disorders include:

  • Anxiety Disorders(e.g.,panic disorder, social anxiety disorder,posttraumatic stress disorder)
  • Mood Disorders (e.g., major depression, bipolar disorder)
  • Eating Disorders (e.g., anorexia nervosa, bulimia nervosa)
  • Psychotic Disorders
  • Dissociative Disorders
  • Substance Use Disorders

Personality disorders (e.g., borderline personality disorder) are not included on Axis I. Instead, they are considered Axis II disorders.

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