DSM = the diagnostic and statistical manual of mental disorders, by the American Psychiatric Association, it provides standard criteria for classifying mental disorders, the most current version is the DSM-5 which holds 157 disorders
Major categories
neurodevelopmental disorders, e.g. intellectual disabilities
Ocd + related disorders, e.g. trichotillomania
Trauma + stress related disorders, e.g. PTSD
Somatic symptom disorders, e.g. conversion disorder
Feeding/eating disorders, e.g. Anorexia
Impulse control disorders, e.g. Pyromania
Substance use and addictions, e.g. Gambling disorder