Specific code 2014 ICD-9-CM Diagnosis Code 301.9
Unspecified personality disorder
  • Billable Code
  • Short description: Personality disorder NOS.
  • ICD-9-CM 301.9 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 301.9 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Disease Synonyms
  • Personality disorder
Clinical Information
  • A diverse category of psychiatric disorders characterized by behavior that deviates markedly from the expectations of the individual's culture; this pattern of deviation is pervasive and inflexible and is stable over time. The behavioral pattern negatively interferes with relationships and work.
  • A major deviation from normal patterns of behavior.
  • Personality disorder characterized by conflict with others, low frustration tolerance, inadequate conscience development, and rejection of authority and discipline.
  • Personality disorder whose essential feature is a pervasive pattern of disregard for, and violation of, the rights of others through aggressive, antisocial behavior, without remorse or loyalty to anyone.
  • Personality disorders are long-term patterns of thoughts and behaviors that cause serious problems with relationships and work. People with personality disorders have difficulty dealing with everyday stresses and problems. They often have stormy relationships with other people. The exact cause of personality disorders is unknown. However, genes and childhood experiences may play a role.symptoms vary widely depending on the specific type of personality disorder. Treatment usually includes talk therapy and sometimes medicine.
  • When normal personality traits become inflexible and maladaptive, causing subjective distress or impaired social functioning, they can be considered disorders.
Applies To
  • Pathological personality NOS
  • Personality disorder NOS
  • Psychopathic:
    • constitutional state
    • personality (disorder)
Convert to ICD-10-CM: 301.9 converts approximately to:
  • 2014 ICD-10-CM F60.9 Personality disorder, unspecified
ICD-9-CM Volume 2 Index entries containing back-references to 301.9:
  • Abnormal, abnormality, abnormalities - see also Anomaly
    • excitability under minor stress 301.9
  • Complex
    • inferiority 301.9
  • Constitutional - see also condition
    • psychopathic state 301.9
  • Disorder - see also Disease
    • character NEC (see also Disorder, personality) 301.9
  • Disturbance - see also Disease
    • personality (pattern) (trait) (see also Disorder, personality) 301.9
      • following organic brain damage 310.1
  • Inferiority complex 301.9
    • constitutional psychopathic 301.9
  • Pathologic, pathological - see also condition
    • personality 301.9
  • Personality
    • disorder, disturbance NEC 301.9
      • with
        • antisocial disturbance 301.7
        • pattern disturbance NEC 301.9
        • sociopathic disturbance 301.7
        • trait disturbance 301.9
    • pathologic NEC 301.9
    • pattern defect or disturbance 301.9
    • psychopathic 301.9
      • with
        • amoral trend 301.7
        • antisocial trend 301.7
        • asocial trend 301.7
        • pathologic sexuality (see also Deviation, sexual) 302.9
      • mixed types 301.9
  • Problem (with) V49.9
    • personality (see also Disorder, personality) 301.9
  • Psychopathic - see also condition
    • state 301.9
  • Reaction
    • personality (see also Disorder, personality) 301.9
  • State
    • constitutional psychopathic 301.9
  • Witzelsucht 301.9
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 301.9 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2014 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.