ICD-10 Code F44 – Dissociative and conversion disorders (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F44 – Dissociative and conversion disorders
What it is
F44 covers dissociative and conversion disorders, a group of conditions where changes in memory, identity, sensation, or movement are not explained by a known neurologic or medical cause. Use the code when documentation supports this diagnosis.
Clinical signs
Clinical features may include amnesia, depersonalization, altered identity, or neurologic-like symptoms such as weakness, paralysis, or nonepileptic seizures. Clinical features vary; refer to documentation.
When to use this code
Use F44 when the provider documents a dissociative disorder or conversion disorder and the record shows symptoms consistent with that diagnosis. It is also appropriate when the clinician has ruled out a clear organic explanation. Check documentation if the note uses older terms such as hysteria or psychogenic symptoms.
Do not use for
Do not use F44 for symptoms clearly caused by a neurologic disease, substance use, or another confirmed medical condition. Do not assign it when the chart only says “rule out” or “possible” without a documented diagnosis.
Coding tip
Code the specific F44 diagnosis only when the provider documents it; otherwise, report the confirmed symptom or condition and query if needed.