CPT code 0218T identifies an ultrasound-guided injection of a diagnostic or therapeutic agent at a third-level lumbar or sacral paravertebral facet joint or the exiting nerves, with allowance for additional levels. This procedure is used to manage spinal pain and to administer anesthetic for surgical procedures, and it reflects growing use of image-guided techniques in spine care. Nationally, the code matters because it defines a discrete, image-guided interventional service that affects clinical pathways for pain management and perioperative anesthesia.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise summary of the clinical intent and typical settings for the service, payer coverage considerations and common modifiers, and the types of benchmarks and policy updates typically tracked for image-guided spinal injections. The publication provides context on clinical use, typical sites of service such as hospital outpatient departments and ambulatory surgery centers, and the practical implications for billing and documentation. Data not available in the input is noted where applicable; the focus remains on clarifying the code's clinical role, payer landscape, and what information a clinician or billing professional should expect to review when this service is billed.