ICD-10 Code G52.2 – Disorders of vagus nerve (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G52.2 – Disorders of vagus nerve
What it is
G52.2 identifies disorders affecting the vagus nerve, the cranial nerve that helps control swallowing, voice, and autonomic functions. Use it when documentation states a vagus nerve disorder or dysfunction without a more specific diagnosis.
Clinical signs
Clinical features vary; refer to documentation. Commonly reported findings may include hoarseness, swallowing difficulty, or symptoms related to vagal dysfunction. Confirm that the provider has linked the signs to the vagus nerve.
When to use this code
Use G52.2 when the record specifically documents vagus nerve palsy, neuropathy, or other disorder of the vagus nerve. It is also appropriate when the provider describes vagal dysfunction without naming a different, more specific neurologic condition. Check documentation if the cause is unclear.
Do not use for
Do not use this code for generalized cranial nerve disorders unless the vagus nerve is specifically identified. Do not assign it when the chart documents only symptoms, such as hoarseness or dysphagia, without a confirmed vagus nerve disorder.
Coding tip
Query the provider when the note mentions vagal symptoms but does not clearly document a vagus nerve disorder.