ICD-10 Code F44.81 – Dissociative identity disorder (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F44.81 – Dissociative identity disorder
What it is
F44.81 identifies dissociative identity disorder, a condition in which a person has two or more distinct identity states. These states may be accompanied by gaps in memory, awareness, or everyday functioning.
Clinical signs
Clinical features vary; refer to documentation. Commonly noted findings include recurrent amnesia, identity shifts, and disruption in behavior, mood, or sense of self that cannot be explained by ordinary forgetfulness.
When to use this code
Use F44.81 when the provider documents dissociative identity disorder, multiple personality disorder, or an equivalent confirmed diagnosis. Code it when the record supports distinct identity states with clinically significant memory gaps or functional impairment.
Do not assign it for brief dissociation, stress-related detachment, or unexplained memory loss without a documented diagnosis. If the chart is unclear, check documentation before coding.
Do not use for
Do not use this code for general amnesia, depersonalization, or other dissociative disorders unless dissociative identity disorder is specifically documented. Do not assume the diagnosis from symptoms alone.
Coding tip
Code F44.81 only when the provider’s documentation clearly names the disorder; otherwise, query for clarification.