Summary & Overview
CPT 64454: Image-Guided Genicular Nerve Injection for Knee Pain
CPT code 64454 represents an image-guided injection of an anesthetic and/or steroid into the genicular nerve branches supplying the knee. The code captures procedures used for diagnostic nerve blocks and for therapeutic pain relief in patients with knee pain, including osteoarthritis and post-surgical pain. Nationally, use of targeted genicular nerve interventions has grown with expanding evidence for symptom control and as a minimally invasive alternative to more invasive procedures.
Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication provides a national view of clinical context, coverage patterns, and billing considerations for 64454 across these major payers. Readers will find benchmarks on utilization patterns, summaries of payer coverage stances where available, and discussion of clinical indications and service settings associated with the code. The report also highlights coding considerations such as inclusion of imaging guidance in the code descriptor and typical sites of service for the procedure.
Intended readers are clinicians, coding staff, and policy analysts seeking concise information about the procedure represented by CPT code 64454, how it is billed, and the payer landscape relevant to national practice.
Billing Code Overview
CPT code 64454 describes an image-guided injection of an anesthetic agent and/or steroid into branches of the genicular nerves that supply the knee joint. The procedure targets the sensory nerve branches around the knee to provide diagnostic or therapeutic pain relief.
Service type: Nerve block / joint-related pain management injection
Typical site of service: Outpatient procedure setting, commonly performed in ambulatory surgery centers, hospital outpatient departments, or office-based procedure suites where imaging guidance (fluoroscopy or ultrasound) is available.
Clinical & Coding Specifications
Clinical Context
A 68-year-old patient with chronic, debilitating osteoarthritic knee pain presents to an outpatient interventional pain clinic after failing conservative therapy including oral analgesics, physical therapy, and intra-articular corticosteroid injection. The pain is localized to the medial and lateral joint line and posterior knee and is reproducibly exacerbated by ambulation. Diagnostic genicular nerve block under fluoroscopic or ultrasound guidance produced significant temporary pain relief during a prior visit, supporting the diagnosis of genicular nerve–mediated knee pain.
On the day of service, the patient is evaluated by an interventional pain physician or musculoskeletal proceduralist. The procedure involves sterile preparation of the knee, imaging localization of the superior medial, superior lateral, and inferior medial genicular nerve branches, and percutaneous injection of a local anesthetic with or without corticosteroid. Imaging guidance (fluoroscopy or ultrasound) is used and documented as part of the procedure. The patient is monitored in recovery and discharged with post-procedure instructions and follow-up planning for possible repeat diagnostic blocks or radiofrequency ablation if relief is significant but temporary.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
11 | Normal, uncomplicated service | Use when the procedure is performed routinely without unusual circumstances. |