ICD-10 Code F07 – Personality and behavioral disorders due to known physiological condition (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F07 – Personality and behavioral disorders due to known physiological condition
What it is
F07 covers personality or behavioral changes caused by a known medical or neurological condition. Use it when the documentation links the mental or behavioral disturbance to an underlying physiological cause.
Clinical signs
Clinical features vary; refer to documentation. Commonly reported findings include changes in personality, emotion, impulse control, or social behavior that are attributed to a medical disorder.
When to use this code
Use F07 when the provider documents a personality or behavioral disorder due to a recognized physiological condition, such as a brain or systemic disorder. Code the underlying condition as instructed and verify the causal relationship in the record.
If the chart only describes nonspecific psychiatric symptoms without a stated physiological cause, check documentation before assigning this code. You should not infer the diagnosis from symptoms alone.
Do not use for
Do not use this code for primary psychiatric disorders without a physiological cause. Also avoid it when the record does not clearly connect the behavior change to a known condition.
Coding tip
Confirm both the behavioral diagnosis and the linked physiological condition in the provider note before coding.