Summary & Overview
CPT 64505: Sphenopalatine (Meckel’s) Ganglion Nerve Block
CPT code 64505 denotes a sphenopalatine (Meckel’s or nasal) ganglion nerve block, an interventional pain procedure used to reduce transmission in the trigeminal-associated sphenopalatine ganglion. Nationally, this code matters as an option for managing refractory craniofacial pain, certain headache syndromes, and other pain conditions where blockade of the ganglion can provide relief. Use of this procedure reflects evolving practice in outpatient pain management and procedural headache care.
Key payers in the coverage landscape include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical intent and typical sites of service, plus what to expect in payer coverage considerations. The publication provides benchmarks for coding and billing practices, summarizes relevant policy themes that affect reimbursement and prior authorization, and explains clinical context for appropriate use. Practical sections cover documentation needs, common modifiers and service-line placement, and how this procedure fits within broader pain management pathways.
Data not available in the input for specific negotiated rates, detailed payer policies, ICD-10 pairings, and associated taxonomies; those items are noted as unavailable where relevant within the full publication.
Billing Code Overview
CPT code 64505 describes a sphenopalatine (Meckel’s or nasal) ganglion nerve block, a procedure that interrupts transmission in the sphenopalatine (trigeminal-associated) ganglion to reduce pain. The procedure targets pain pathways associated with headaches, facial pain, and other pain syndromes and can be used for a range of pain conditions from headache to low back pain.
Service type: Nerve block / interventional pain management procedure
Typical site of service: Outpatient procedure setting, including ambulatory surgery centers and office-based interventional pain clinics. If inpatient use is necessary, site of service should be documented according to clinical need.
Clinical & Coding Specifications
Clinical Context
A 45-year-old patient presents to an outpatient pain management clinic with a 6-month history of refractory cluster headaches and severe facial pain consistent with trigeminal neuralgia. Prior medical management with oral analgesics, anticonvulsants, and corticosteroid trials provided incomplete relief. After multidisciplinary evaluation, the interventional pain physician recommends a targeted sphenopalatine (Meckel’s) ganglion nerve block to interrupt trigeminal nociceptive pathways. The procedure is performed in a procedure suite with standard monitoring (blood pressure, pulse oximetry, ECG), intravenous access available, and resuscitation equipment on hand. The patient is positioned supine; topical and local anesthesia are applied to the nasal mucosa or percutaneous entry site as indicated. Under fluoroscopic or endoscopic guidance, the clinician advances a needle to the sphenopalatine ganglion region and injects local anesthetic with or without steroid for diagnostic and therapeutic effect. The patient is observed in recovery for hemodynamic stability and immediate pain response prior to discharge with post-procedure instructions and a plan for follow-up to assess efficacy and need for repeat block or alternative interventions.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | When only the physician interpretation or professional portion of a bundled service is billed separately. |