2026 ICD-10-CM Diagnosis Code F44

Code attributes

• Non-billable/Non-specific code

Coding rules

• Specify the leaf code — the parent code (e.g. F32) is a navigational header; billing requires a leaf code (F32.0, F32.1, etc.) that matches the documented presentation.
• Document onset, course, and severity (mild / moderate / severe) plus functional impact. Payers use this combination when adjudicating medical necessity.
• Attach a validated instrument score (PHQ-9, GAD-7, PCL-5, or equivalent) at intake and at follow-up where applicable. Objective measures support code selection and continued authorization.
• Review at every visit and update if presentation changes — including remission and partial remission states.

Clinical information

F44 covers dissociative and conversion disorders — including dissociative amnesia (F44.0), dissociative fugue (F44.1), dissociative identity disorder (F44.81), and conversion presentations (F44.4–F44.7). Trauma history is common. Document the dissociative phenomena observed, rule out medical and substance causes, and capture any co-occurring PTSD or depressive disorder.