Psychiatric Disorder ICD-10-CM Codes

Psychiatric Disorder ICD-10-CM Codes

Explore the essential ICD-10 codes for psychiatric disorders. Understand their significance in diagnosis, treatment, and medical billing processes.

By Ericka Pingol on Jul 16, 2025.

Fact Checked by Ericka Pingol.

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What ICD-10 Codes are Used for Psychiatric Disorder

Implementing correct ICD-10 codes is integral to precise medical billing and coding for psychiatric disorders. These standardized codes are a universal language for documenting various mental health conditions. Here, we present a list of six commonly used ICD-10 codes in psychiatry, complete with their clinical descriptions:

  • F99 - Mental Disorder, Not Otherwise Specified: This code is utilized when a mental disorder is confirmed, but its specific category remains unidentified. It serves as a catch-all for disorders that don't fit neatly into other classifications.
  • F40.241 - Acrophobia: This ICD-10 code is employed for diagnosing acrophobia, an intense or irrational fear of heights. Healthcare providers must document such phobias for appropriate treatment planning accurately.
  • F41.0 - Panic Disorder: This specific code is assigned to patients who experience recurrent, unexpected panic attacks, significantly impacting their daily functioning and well-being.
  • F20.3 - Undifferentiated Schizophrenia: This code is designated for instances of schizophrenia that don't align precisely with other subcategories of this disorder, making it a useful tool for complex diagnoses.
  • F25.0 - Schizoaffective Disorder, Depressive Type: This code is used when patients exhibit symptoms characteristic of both schizophrenia and a depressive disorder, a condition known as schizoaffective disorder.
  • F33 - Major Depressive Disorder, Recurrent: This ICD-10 code pertains to patients who have encountered multiple episodes of depression, highlighting the recurring nature of their condition.

Understanding these codes and their application in professional settings is crucial. For a more detailed explanation, please watch our explainer video.

For additional information on these and other related codes, visit our Psychiatric Disorder ICD Codes resources. They provide in-depth knowledge about the wide range of ICD-10 codes used in psychiatry.

Which Psychiatric Disorder ICD codes are Billable:

All the abovementioned codes (F99, F40.241, F41.0, F20.3, F25.0, F33) are billable.

Clinical Information

  •  Psychiatric disorders can profoundly affect a person's cognitive, emotional, and behavioral states. This impact often leads to communication, understanding, and social interaction difficulties.
  • Diagnosing psychiatric disorders typically involves a thorough evaluation process. It includes physical examinations to rule out other medical conditions causing symptoms. 
  • Personal interviews are conducted to understand the patient's experiences, thoughts, feelings, and behaviors. Psychological testing may also be employed to gain deeper insights into the patient's mental state.
  • Treatment approaches for psychiatric disorders are as diverse as the disorders themselves. They may include psychotherapy or 'talk therapy,' which provides a safe space for patients to express their feelings and learn coping strategies. 
  • Medication is another common treatment used to manage symptoms and stabilize mood. A combination of both therapies is often the most effective course of action.

Synonyms Include:

  • Mental disorder
  • Mental illness
  • Psychological disorder
  • Mental health disorder
  • Psychopathological disorder
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