Personality disorder not otherwise specified

Personality disorder, unspecified
Other namesPersonality disorder NOS (PDNOS)
SpecialtyPsychiatry

Personality disorder not otherwise specified (PD-NOS) is a subclinical[a] diagnostic classification for some DSM-IV Axis II personality disorders not listed in DSM-IV.[1]

The DSM-5 does not have a direct equivalent to PD-NOS. However, the DSM-5 other specified personality disorder and unspecified personality disorder are substantially comparable to PD-NOS.[2]

Additionally, the DSM-5 introduced the diagnosis Personality disorder - trait specified (PD-TS) as an alternative to let clinicians define the presentation in detail in terms of "impairment of personality functioning" and "pathological personality traits".[3]


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  1. ^ Verheul, Roel; Bartak, Anna; Widiger, Thomas (August 2007). "Prevalence and construct validity of Personality Disorder Not Otherwise Specified (PDNOS)". Journal of Personality Disorders. 21 (4). New York City: Guilford Press: 359–70. doi:10.1521/pedi.2007.21.4.359. PMID 17685833.
  2. ^ Diagnostic and Statistical manual of Mental Disorders (5th ed.). Washington, DC: American Psychiatric Association. 2013. pp. 15. ISBN 978-0-89042-555-8.
  3. ^ "Alternative DSM-5 Model for Personality Disorders". Diagnostic and Statistical Manual for Mental Disorders (fifth edition). Washington, DC: American Psychiatric Association. p. 761.

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