ICD-10 Code G52.1 – Disorders of glossopharyngeal nerve (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G52.1 – Disorders of glossopharyngeal nerve
What it is
G52.1 identifies disorders affecting the glossopharyngeal nerve, the ninth cranial nerve. Use it when documentation describes dysfunction of this nerve without a more specific named diagnosis.
Clinical signs
Clinical features vary; refer to documentation. Commonly recorded findings may include throat or ear pain, swallowing difficulty, or altered gag reflex when the glossopharyngeal nerve is involved.
When to use this code
Use G52.1 when the provider documents glossopharyngeal nerve disorder, neuralgia, or neuropathy and does not assign a more specific cause. It also fits nonspecific cranial nerve IX dysfunction noted on examination or in the assessment. Check documentation if the record suggests a broader neurologic disease.
Do not use for
Do not use this code for isolated throat pain, ear pain, or dysphagia without documented glossopharyngeal nerve involvement. If another cranial nerve disorder or a specific underlying condition is identified, code that diagnosis instead.
Coding tip
Confirm the note names the glossopharyngeal nerve or cranial nerve IX before assigning G52.1.