ICD-10 Code F44.5 – Conversion disorder with seizures or convulsions (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F44.5 – Conversion disorder with seizures or convulsions
What it is
This code describes seizure-like episodes caused by a functional neurological symptom disorder, not by epileptic brain activity. Use it when the record shows convulsions or seizure-like events without evidence of epilepsy.
Clinical signs
Episodes may resemble generalized seizures, but standard neurologic testing does not support epileptic seizures. Clinical features vary; refer to documentation, especially when notes describe psychogenic nonepileptic events or conversion symptoms.
When to use this code
Use F44.5 when the clinician documents conversion disorder with seizures, convulsions, or psychogenic nonepileptic seizures. You may also use it when the provider clearly links the events to a functional or dissociative presentation. Check documentation if the cause is uncertain.
Do not use for
Do not use this code for confirmed epilepsy, febrile seizures, syncope, or other neurologic causes of loss of consciousness. If the record does not support a conversion disorder diagnosis, do not assume it.
Coding tip
Code from the provider’s documented diagnosis, not from seizure-like appearance alone.