Bipolar I disorder: Bipolar disorder in someone who has experienced depression and at least one episode of severe mania. Severe mania characteristically causes significant distress or greatly impairs one's work, family, or social life.
Bipolar I disorder is distinct from bipolar II disorder in which a person has had hypomania but not severe mania. Hypomanic episodes characteristically do not cause significant distress or greatly impair one's work, family, or social life.
See also: Bipolar disorder; Depression; Hypomania; Mania.
WebMD explains the symptoms and treatments of bipolar I disorder, and how bipolar I is different from other types of bipolar disorder.
Find in-depth information on bipolar disorder from symptoms to medication options.
A detailed booklet that describes bipolar disorder symptoms, causes, and treatments, with information on getting help and coping.
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Bipolar disorder- DSM IV Diagnosis ... Bipolar I Disorder DSM IV Criteria Diagnostic Features. The essential feature of Bipolar I Disorder is a clinical course ...