ICD-10 Code G52.8 – Disorders of other specified cranial nerves (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G52.8 – Disorders of other specified cranial nerves
What it is
This code identifies a disorder affecting a cranial nerve that is not otherwise classified in the ICD-10-CM cranial nerve categories. Use it when documentation names a specific cranial nerve problem, but no more precise code applies.
Clinical signs
Clinical features vary; refer to documentation. Findings may include nerve-specific sensory loss, weakness, pain, or impaired function tied to the affected cranial nerve.
When to use this code
Use G52.8 when the provider documents an abnormality of a specified cranial nerve and the chart does not support a more exact diagnosis. It is appropriate for coded reports of isolated cranial nerve dysfunction when the condition is not better described elsewhere. Check documentation if the nerve involved or cause is unclear.
Do not use for
Do not use this code for generalized neurologic disease, unspecified nerve disorders, or conditions with a more specific cranial nerve code. If the record identifies another exact diagnosis, code that instead.
Coding tip
Confirm the named cranial nerve in the provider note before assigning G52.8.