ICD-10 Code F07.89 – Other personality and behavioral disorders due to known physiological condition (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F07.89 – Other personality and behavioral disorders due to known physiological condition
What it is
F07.89 identifies personality or behavioral changes caused by a known physiological condition. Use it when the record links the change to an underlying medical disorder rather than a primary psychiatric diagnosis.
Clinical signs
Clinical features vary; refer to documentation. Commonly reported findings include altered personality, disinhibition, emotional lability, apathy, or other behavior changes that follow a documented medical condition.
When to use this code
Use this code when the provider documents behavioral or personality disturbance due to a known physiological cause and does not name a more specific code. It may apply when the chart states the condition is secondary to a neurologic, metabolic, or other medical disorder. Confirm the causal link in the note.
Do not use for
Do not use it for primary mental health disorders without a documented physiological cause. If the chart does not clearly connect the behavior change to an underlying condition, check documentation before coding.
Coding tip
Look for explicit wording such as “due to,” “secondary to,” or “associated with” a known medical condition before assigning F07.89.