Quoting its[Wikipedia page]§(https://en.wikipedia.org/wiki/Diagnostic_and_Statistical_Manual_of_Mental_Disorders):
The Diagnostic and Statistical Manual of Mental Disorders (DSM) is a publication by the American Psychiatric Association (APA) for the classification of mental disorders using a common language and standard criteria and is the main book for the diagnosis and treatment of mental disorders in the United States and is considered one of the “Bibles” of psychiatry
Mainly used in the United States, this manual is a reference for researchers, psychiatric drug regulation agencies, health insurance companies, pharmaceutical companies, the legal system, and policymakers. Mental health professionals use the manual to determine and help communicate a patient’s diagnosis after an evaluation; health-care researchers use the DSM to categorize patients for research purposes.
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