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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 ...
The Major Depression Inventory ( MDI) is a self-report mood questionnaire developed by the World Health Organization. The instrument was constructed by a team led by Professor Per Bech, a psychiatrist based at Frederiksborg General Hospital in Denmark. [1] The MDI differs from many other self-report inventories, such as the Beck Depression ...
The DSM-IV-TR features expanded disorder descriptions, clarified wordings, and corrected errors. While categorizations and diagnostic criteria remained largely unchanged, a few subtypes were added or removed. Additionally, ICD-9-CM codes updated since the release of DSM-IV were incorporated. [4]
The DSM-5 (2013), the current version, also features ICD-9-CM codes, listing them alongside the codes of Chapter V of the ICD-10-CM. On 1 October 2015, the United States health care system officially switched from the ICD-9-CM to the ICD-10-CM. [1] [2] The DSM is the authoritative reference work in diagnosing mental disorders in the world.
A mood disorder, also known as an affective disorder, is any of a group of conditions of mental and behavioral disorder [ 2] where a disturbance in the person's mood is the main underlying feature. [ 3] The classification is in the Diagnostic and Statistical Manual of Mental Disorders (DSM) and International Classification of Diseases (ICD).
A revision of DSM-5, titled DSM-5-TR, was published in March 2022, updating diagnostic criteria and ICD-10-CM codes. [93] The diagnostic criteria for avoidant/restrictive food intake disorder was changed, [94] along with adding entries for prolonged grief disorder, unspecified mood disorder and stimulant-induced mild neurocognitive disorder.
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 ...
Differential diagnoses of depression. Neuroimaging can be a valuable tool in the diagnostic work-up of various psychiatric disorders including depression. [1] Depression, one of the most commonly diagnosed psychiatric disorders, [2] [3] is being diagnosed in increasing numbers in various segments of the population worldwide.