Summary & Overview
CPT 64408: Vagus Nerve Injection of Anesthetic and/or Steroid
CPT code 64408 denotes injection of an anesthetic, steroid, or both into the tenth cranial nerve (vagus nerve). This targeted nerve injection is used for diagnostic or therapeutic purposes and can be reported for one or more injections performed during a single procedure. Nationally, services involving cranial nerve blocks are clinically significant due to procedural complexity, need for image guidance or specialist skill, and variable coverage policies across major payers.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the clinical context and service settings for 64408, a summary of payer coverage considerations and common modifiers reported with the service, and benchmarks and policy updates relevant to billing and reimbursement. The publication highlights coding guidance for reporting the procedure when multiple injections occur during a single session and outlines areas where payers commonly require documentation, such as indication, procedural technique, and expected outcomes.
This overview is aimed at clinicians, billing professionals, and policy analysts seeking a national perspective on clinical use, payer handling, and administrative considerations for CPT code 64408.
Billing Code Overview
CPT code 64408 describes the injection of an anesthetic, steroid, or both into the tenth cranial nerve (the vagus nerve). The service involves targeted nerve injection techniques intended to deliver medication directly to the vagus nerve to achieve therapeutic anesthesia or anti-inflammatory effect.
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Service type: Nerve injection / therapeutic nerve block
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Typical site of service: Ambulatory surgical center or hospital outpatient department; may also be performed in office-based procedural settings depending on clinical resources and patient needs.
Data not available in the input for associated taxonomies, ICD-10 diagnoses, and related codes.
Clinical & Coding Specifications
Clinical Context
A 45-year-old patient with refractory cluster headaches and recurrent vagally mediated syncope is referred for a vagus nerve injection. The procedure is performed in an outpatient ambulatory surgery center with monitored anesthesia care or local anesthesia. The patient screening includes history and review of imaging to identify cervical anatomy; consent documents describe risks including bleeding, infection, and nerve injury. The provider positions the patient supine with the neck extended, identifies the cervical course of the vagus nerve (typically within the carotid sheath), and uses surface landmarks and/or ultrasound guidance to advance a needle to deliver a local anesthetic, corticosteroid, or both to the tenth cranial (vagus) nerve. Vital signs and neurological status are monitored before, during, and after the injection. Post-procedure instructions include observation for bradycardia, hoarseness, dysphagia, and airway compromise, and documentation includes indication, laterality if applicable, medications and doses injected, guidance modality, and disposition.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
11 | Normal or typical procedure services | Use when the service represents the physician’s usual service during a single encounter. |
22 |