List Of ICD-9 Codes 290–319: Mental Disorders

List of ICD-9 Codes 290–319: Mental Disorders encompasses a comprehensive classification of mental disorders as outlined in the Ninth Revision of the International Classification of Diseases (ICD-9). This range of codes is dedicated to identifying and categorizing various mental health conditions, from cognitive disorders in the elderly to developmental disorders in childhood. Understanding these codes is crucial for healthcare professionals, researchers, and policy-makers in diagnosing, treating, and studying mental health issues.

Overview

The ICD-9 codes for mental disorders are divided into several categories, each addressing a different type of mental health condition. These categories facilitate a systematic approach to diagnosing and treating mental illnesses, ensuring consistency and accuracy across the medical field.

Dementia and Delirium (290–294)

This category includes disorders characterized by a decline in memory, thinking, behavior, and the ability to perform everyday activities. Notable codes include:

• 290.0 - Senile dementia, uncomplicated
• 292.0 - Drug-induced delirium

Psychotic Disorders (295–299)

Psychotic disorders involve distorted thinking and awareness. Key conditions and their codes are:

• 295 - Schizophrenia
• 298.9 - Unspecified psychosis

Mood Disorders (296–298)

Mood disorders affect a person's emotional state, ranging from depression to bipolar disorder. Examples include:

• 296.2 - Major depressive disorder, single episode
• 296.7 - Bipolar disorder, unspecified

Anxiety Disorders (300)

Anxiety disorders are characterized by excessive fear or anxiety. Important codes in this category are:

• 300.0 - Anxiety state, unspecified
• 300.3 - Obsessive-compulsive disorder

Personality Disorders (301)

Personality disorders involve enduring patterns of behavior, cognition, and inner experience that deviate from the expectations of the individual's culture. Notable examples are:

• 301.0 - Paranoid personality disorder
• 301.6 - Dependent personality disorder

Substance Abuse Disorders (303–305)

These codes cover disorders related to the misuse of substances such as alcohol and drugs.

• 303.9 - Alcohol dependence syndrome, unspecified
• 305.0 - Alcohol abuse, unspecified

Developmental Disorders (306–319)

This category includes disorders that are typically diagnosed in infancy, childhood, or adolescence.

• 314.0 - Attention deficit disorder with hyperactivity
• 317 - Mild intellectual disabilities

Conclusion

The ICD-9 codes for mental disorders provide a vital framework for the diagnosis and treatment of mental health conditions. By categorizing these conditions, the ICD-9 facilitates research, education, and policy development in the field of mental health.

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