Narcissistic Personality Disorder (NPD):

Narcissistic personality disorder (NPD) can only be diagnosed by a mental health professional based on specific criteria outlined in the Diagnostic and Statistical Manual of Mental Disorders, fifth edition (DSM-5). The official definition of NPD was revised in 2014 in DSM-5-TR (TR = text revision) as a pervasive pattern of grandiosity (in fantasy or behavior), a constant need for admiration, and lack of empathy.” The narcissistic traits must be inflexible, maladaptive, and persistent, causing significant functional impairment or subjective distress to self and relationships. The disorder can represent not only extreme grandiose (overt) but also aspects ofvulnerable (covert) narcissism, or both. Also see Personality Disorders. NPD is first noticed as a lack of empathy, beginning by early adulthood and seen in various ways, as indicated by the presence of at least 5 of the following 9 criteria:

• Grandiose sense of self-importance, with exaggerated achievements, expectations to be recognized as superior without commensurate achievements 
• Preoccupation with fantasies of unlimited success, power, brilliance, beauty, or ideal love 
• Belief they are unique and special and can only be understood by, or should associate with, other special or high-status people or institutions 
• Need for excessive admiration 
• Sense of entitlement, expecting special favors and automatic compliance with their expectations 
• Interpersonally exploitative behavior, taking advantage of others to achieve their own ends
• Lack of empathy 
• Envy of others or belief that others are envious of them 
• Arrogant, haughty behaviors or attitudes