ICD-10 Code F45.8 – Other somatoform disorders (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F45.8 – Other somatoform disorders
What it is
F45.8 identifies somatoform disorders that do not fit a more specific category. It is used when physical symptoms are present and the documentation supports a somatoform diagnosis, but another listed code is not appropriate.
Clinical signs
Clinical features vary; refer to documentation. Typical records describe persistent physical complaints, repeated medical evaluation, and symptoms that are not fully explained by a known medical condition.
When to use this code
Use F45.8 when the provider documents an “other somatoform disorder” or a similar nonspecific somatoform presentation. It may apply when symptoms are medically unexplained and the chart does not support a more specific F45 code. Check documentation for the exact diagnosis wording.
Do not use for
Do not use this code if the record supports a different somatic symptom or related disorder code, or if symptoms are explained by a confirmed physical illness. Avoid guessing when the diagnosis is unclear.
Coding tip
Match the code to the provider’s exact terminology and document any stated exclusion of organic disease.