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200 million. Major depressive disorder ( MDD ), also known as clinical depression, is a mental disorder [ 8] 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, [ 9] the term was adopted by the ...
The International Classification of Diseases (ICD) is an international standard diagnostic classification for a wide variety of health conditions. The ICD-10 states that mental disorder is "not an exact term", although is generally used "...to imply the existence of a clinically recognisable set of symptoms or behaviours associated in most cases with distress and with interference with ...
Gender dysphoria (also known as gender integrity disorder or gender incongruence, there are different categorizations for children and non-children in the ICD-11) Medication-induced movement disorders and other adverse effects of medication; Catatonia; Culture-bound syndrome
Dysthymia ( / dɪsˈθaɪmiə / dihs-THIY-mee-uh ), also known as persistent depressive disorder ( PDD ), [ 3] is a mental and behavioral disorder, [ 5] specifically a disorder primarily of mood, consisting of similar cognitive and physical problems as major depressive disorder, but with longer-lasting symptoms. [ 3][ 6][ 7] The concept was ...
ICD-10 is the 10th revision of the International Classification of Diseases (ICD), a medical classification list by the World Health Organization (WHO). It contains codes for diseases, signs and symptoms, abnormal findings, complaints, social circumstances, and external causes of injury or diseases. [ 1] Work on ICD-10 began in 1983, [ 2 ...
The International Classification of Diseases, Clinical Modification (ICD-9-CM) was an adaptation created by the US National Center for Health Statistics (NCHS) and used in assigning diagnostic and procedure codes associated with inpatient, outpatient, and physician office utilization in the United States. The ICD-9-CM is based on the ICD-9 but ...
Endogenous depression (melancholia) is an atypical subclass of major depressive disorder (clinical depression). It could be caused by genetic and biological factors. [ 1] Endogenous depression occurs due to the presence of an internal (cognitive, biological) stressor instead of an external (social, environmental) stressor. [ 2]
Treatment-resistant depression (TRD) is major depressive disorder in which an affected person does not respond adequately to at least two different antidepressant medications at an adequate dose and for an adequate duration. [ 1] Inadequate response has most commonly been defined as less than 25% reduction in depressive symptoms following ...