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163 million (2017) [8] Major depressive disorder ( MDD ), also known as clinical depression, is a mental disorder [9] characterized by at least two weeks of pervasive low mood, low self-esteem, and loss of interest or pleasure in normally enjoyable activities. Introduced by a group of US clinicians in the mid-1970s, [10] the term was adopted by ...
Mixed anxiety–depressive disorder. Mixed anxiety–depressive disorder ( MADD) is a diagnostic category that defines patients who have both anxiety and depressive symptoms of limited and equal intensity accompanied by at least some autonomic nervous system features. Autonomic features are involuntary physical symptoms usually caused by an ...
A major depressive episode ( MDE) is a period characterized by symptoms of major depressive disorder. Those affected primarily exhibit a depressive mood for at least two weeks or more, and a loss of interest or pleasure in everyday activities. Other symptoms can include feelings of emptiness, hopelessness, anxiety, worthlessness, guilt ...
3–5% (lifetime prevalence) [ 4] Generalized anxiety disorder ( GAD) is a mental and behavioral disorder, [ 5] specifically an anxiety disorder characterized by excessive, uncontrollable and often irrational worry about events or activities. [ 6] Worry often interferes with daily functioning, and individuals with GAD are often overly concerned ...
Adjustment disorder is a maladaptive response to a psychosocial stressor. It is classified as a mental disorder. [2] The maladaptive response usually involves otherwise normal emotional and behavioral reactions that manifest more intensely than usual (considering contextual and cultural factors), causing marked distress, preoccupation with the ...
The ICD-10 established a set of diagnostic criteria for PCS in 1992. In order to meet these criteria, a patient has had a head injury "usually sufficiently severe to result in loss of consciousness" [33] [39] and then develop at least three of the eight symptoms marked with a check mark in the table at right under "ICD-10" within four weeks.
A revision of DSM-5, titled DSM-5-TR, was published in March 2022, updating diagnostic criteria and ICD-10-CM codes. [52] The diagnostic criteria for avoidant/restrictive food intake disorder were changed, [53] [54] along with adding entries for prolonged grief disorder, unspecified mood disorder and stimulant-induced mild neurocognitive disorder.
Recurrent brief depression (RBD) defines a mental disorder characterized by intermittent depressive episodes, not related to menstrual cycles in women, occurring between approximately 6–12 times per year, over at least one year or more fulfilling the diagnostic criteria for major depressive episodes (DSM-IV and ICD-10) except for duration in which RBD is less than 14 days (typically 5–7 days).