List of ICD-9 codes 290–319: mental disorders

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The List of ICD-9 codes 290–319 covers the section of the International Classification of Diseases (Ninth Revision), or ICD-9, that pertains to mental disorders. This range of codes is used primarily in the field of medicine and psychology to classify various forms of mental health issues, ranging from dementia and mood disorders to anxiety disorders and personality disorders. The classification helps in diagnosing, studying, and managing mental health conditions.

Overview[edit | edit source]

The ICD-9 is a coding system that was developed by the World Health Organization (WHO) and is used internationally to classify diseases and a wide variety of signs, symptoms, abnormal findings, complaints, and social circumstances. Codes 290–319 specifically address mental disorders, providing a standardized framework for diagnosis and treatment across different healthcare systems.

Classification[edit | edit source]

The codes within this range are divided into several categories, each addressing different types of mental health issues:

Organic, including symptomatic, mental disorders (290–294)[edit | edit source]

  • 290 - Dementia in conditions classified elsewhere
  • 291 - Alcoholic psychosis
  • 292 - Drug-induced mental disorders
  • 293 - Transient mental disorders due to conditions classified elsewhere
  • 294 - Persistent mental disorders due to conditions classified elsewhere

Psychotic disorders (295–299)[edit | edit source]

Neurotic disorders, personality disorders, and other nonpsychotic mental disorders (300–316)[edit | edit source]

  • 300 - Anxiety disorders
  • 301 - Personality disorders
  • 302 - Sexual deviations and disorders
  • 303 - Alcohol dependence
  • 304 - Drug dependence
  • 305 - Nondependent abuse of drugs
  • 306 - Physiological malfunction arising from mental factors
  • 307 - Special symptoms or syndromes not elsewhere classified
  • 308 - Acute reaction to stress
  • 309 - Adjustment reaction
  • 310 - Specific nonpsychotic mental disorders following organic brain damage
  • 311 - Depressive disorder, not elsewhere classified
  • 312 - Disturbance of conduct not elsewhere classified
  • 313 - Disturbances of emotions specific to childhood and adolescence
  • 314 - Attention deficit disorder
  • 315 - Specific delays in development
  • 316 - Psychic factors associated with diseases classified elsewhere

Mental retardation (317–319)[edit | edit source]

  • 317 - Mild mental retardation
  • 318 - Other specified mental retardation
  • 319 - Unspecified mental retardation

Usage[edit | edit source]

These codes are utilized by healthcare professionals to diagnose and treat individuals with mental health issues. They also play a crucial role in epidemiological research, allowing for the systematic collection of data on mental health disorders across populations.

See also[edit | edit source]

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Contributors: Prab R. Tumpati, MD