personality disorder cluster B personality disorder http://purl.bioontology.org/ontology/MEDDRA/10034729 http://purl.bioontology.org/ontology/SNOMEDCT/4306003 https://en.wikipedia.org/wiki/Category:Cluster_B_personality_disorders https://en.wikipedia.org/wiki/Cluster_B_personality_disorders https://www.wikidata.org/wiki/Q5136677 A categorization of personality disorders characterized by dramatic, overly emotional or unpredictable thinking or behavior and interactions with others. They include antisocial personality disorder, borderline personality disorder, histrionic personality disorder and narcissistic personality disorder. cluster B personality disorders personality disorder with dramatic behavior