Most of psychoanalytic sources, including DSM, talks about Borderline Personality disorder and only disorder. Meanwhile Nancy McWilliams talks about Borderline Personality Organization. Also she mentions:
Kernberg (1984), one of the originators of the concept, began having to differentiate between “borderline personality organization” (BPO) and the DSM’s “borderline personality disorder” (BPD).
Meanwhile people with Borderline Personality Organization is described by McWilliams as quite abnormal and problematic. So it stays unclear what exactly the difference between Borderline Personality Disorder and Borderline Personality Organization?
Also, are there any difference between Psychotic Personality Disorder vs Psychotic Personality Organization? McWilliams doesn't seem to say anything on that topic.