The pattern is stable and of long duration, and its onset can be traced back at least to adolescence or early adulthood. The enduring pattern is not better explained as a manifestation or consequence of another mental disorder. The enduring pattern is not attributable to the physiological effects of a substance (e.g., a drug of abuse, a medication) or another medical condition (e.g., head trauma). ICD-11
The ICD-11 personality disorder section differs substantially compared to the previous edition ICD-10. All distinct PDs have been merged into one: Personality disorder (6D10), which can be coded as Mild (6D10.0), Moderate (6D10.1), Severe (6D10.2), or severity unspecified (6D10.Z). There is also an additional category called Personality difficulty (QE50.7), which can be used to describe personality traits that are problematic, but do not meet the diagnostic criteria for a PD. A personality disorder or difficulty can be specified by one or more Prominent personality traits or patterns (6D11). The ICD-11 uses five trait domains: (1) Negative affectivity (6D11.0); (2) Detachment (6D11.1), (3) Dissociality (6D11.2), (4) Disinhibition (6D11.3), and (5) Anankastia (6D11.4). Listed directly underneath is Borderline pattern (6D11.5), a category similar to Borderline personality disorder. This is not a trait in itself, but a combination of the five traits in certain severity.
They were dropped in the DSM-IV, though a proposed depressive personality disorder was added; in addition, the official diagnosis of passive–aggressive personality disorder was dropped, tentatively renamed negativistic personality disorder.International differences have been noted in how attitudes have developed towards the diagnosis of personality disorder. Kurt Schneider argued they were abnormal varieties of psychic life and therefore not necessarily the domain of psychiatry, a view said to still have influence in Germany today. British psychiatrists have also been reluctant to address such disorders or consider them on par with other mental disorders, which has been attributed partly to resource pressures within the National Health Service, as well as to negative medical attitudes towards behaviors associated with personality disorders. In the US, the prevailing healthcare system and psychanalytic tradition has been said to provide a rationale for private therapists to diagnose some personality disorders more broadly and provide ongoing treatment for them. See also
Depressive personality disorder
Borderline personality disorder

References
Further reading
Marshall, W. & Serin, R. (1997) Personality Disorders. In Sm.M. Turner & R. Hersen (Eds.) Adult Psychopathology and Diagnosis. New York: Wiley. 508–41
Murphy, N. & McVey, D. (2010) Treating Severe Personality Disorder: Creating Robust Services for Clients with Complex Mental Health Needs. London: Routledge
Millon, Theodore (and Roger D. Davis, contributor) – Disorders of Personality: DSM IV and Beyond – 2nd ed. – New York, John Wiley and Sons, 1995 ISBN 0-471-01186-X
Yudofsky, Stuart C. (2005). Fatal Flaws: Navigating Destructive Relationships With People With Disorders of Personality and Character (1st ed.). Washington, DC. ISBN 978-1-58562-214-6.