Self-reported narcissistic traits in patients with addiction through the lens of the ICD-11 model for personality disorders.

Background: There is a presumption that pathological narcissism, or narcissistic personality disorder , can be considered a precursor to addiction. Although the ICD-11 model does not distinguish specific personality disorders, narcissistic psychopathology should be captured through personality trait qualifiers.

Objectives: To verify the capacity of the ICD-11 model in the detection of narcissistic psychopathology in patients with addiction; to test its discrimination capacity, convergent validity, and specificity toward the gender and the type of addiction.