ICD-10 Code F06.2 – Psychotic disorder with delusions due to known physiological condition (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F06.2 – Psychotic disorder with delusions due to known physiological condition
What it is
Use this code for a psychotic disorder in which delusions are caused by an identifiable physiological condition. The condition is medical or neurologic, not a primary psychiatric psychosis.
Clinical signs
Typical findings include fixed false beliefs and impaired reality testing, with symptoms linked to an underlying medical cause. Clinical features vary; refer to documentation.
When to use this code
Assign F06.2 when the record clearly states psychotic disorder with delusions due to a known physiological condition. You should also document the associated medical condition when it is identified. Use the code only when the provider links the psychosis to that cause.
Do not use for
Do not use this code for primary delusional disorder, schizophrenia, or unspecified psychosis without a documented physiological cause. Check documentation if the etiology is unclear.
Coding tip
Verify that the provider explicitly connects the delusions to the underlying physiological condition before assigning F06.2.