Summary & Overview
CPT 0218T: Ultrasound-Guided Lumbar/Sacral Facet Joint Injection
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.
Billing Code Overview
CPT code 0218T describes an ultrasound-guided injection of a diagnostic or therapeutic agent at a third level of the lumbar or sacral paravertebral facet joints or the nerves that exit those joints. The provider may inject the agent at additional spinal levels during the same encounter. The procedure is performed to relieve pain or to deliver anesthetic for a surgical procedure.
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Service type: Image-guided spinal injection (diagnostic or therapeutic paravertebral/facet joint injection)
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Typical site of service: Hospital outpatient department or ambulatory surgery center; may also be performed in an office setting equipped for image-guided procedures when appropriate.
Clinical & Coding Specifications
Clinical Context
A 58-year-old patient with chronic axial low back pain and suspected lumbar facet arthropathy presents to an outpatient interventional pain clinic. Conservative management including physical therapy, nonsteroidal anti-inflammatory drugs, and activity modification produced insufficient relief. After clinical evaluation and review of prior imaging demonstrating degenerative changes at the lumbar facet joints, the interventional pain specialist schedules a diagnostic or therapeutic paravertebral/medial branch injection under ultrasound guidance. The procedure is performed in an ambulatory surgery center or hospital outpatient department with continuous monitoring. Using ultrasound to identify the posterior elements, the provider injects a diagnostic anesthetic and/or therapeutic steroid at the targeted third-level lumbar or sacral paravertebral facet joints or the exiting nerves; additional contiguous levels may be injected during the same session. The procedure aims to confirm facet-mediated pain or provide temporary analgesia prior to considering radiofrequency ablation or surgical planning. Typical workflow includes pre-procedure consent and history, sterile prep and ultrasound localization, needle placement with real-time imaging and aspiration checks, controlled injection of diagnostic/therapeutic agent, post-procedure observation for adverse effects, and documentation of level(s) treated, drug(s) and volumes, imaging guidance modality, and response to injection.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier | Standard reporting when no modifier applies |
22 | Increased procedural services | Use when work or complexity significantly greater than usual (document justification) |
23 | Unusual anesthesia | Use when procedure performed with general anesthesia for unusual circumstances |
50 | Bilateral procedure | Use when same procedure performed on both left and right sides during same session |
52 | Reduced services | Use when service is partially reduced or not completed as originally planned |
53 | Discontinued procedure | Use when procedure is started but discontinued due to patient or clinical reasons |
54 | Surgical care only | Use when reporting only the surgical portion and another provider reports pre/post op care |
55 | Postoperative management only | Use when provider performs only postoperative care related to the procedure |
62 | Two surgeons | Use when two surgeons with different specialties share the operative procedure |
66 | Principal physician cannot perform; other qualified physician substitutes | Use when a substitute qualified physician performs service in principal's absence |
78 | Return to OR for related procedure during postoperative period | Use when a related procedure is performed after initial operative procedure in the postoperative period |
80 | Assistant surgeon | Use when a qualified assistant surgeon assists during the procedure |
81 | Minimum assistant surgeon | Use when a minimum assistant is required and documented |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
| 2084P0800X | Pain Medicine | Interventional pain specialists commonly perform lumbar/sacral facet injections |
| 2084P0802X | Interventional Pain Management | Physicians focused on image-guided spine interventions |
| 207RH0000X | Physical Medicine & Rehabilitation | Physiatrists performing spine injections in outpatient settings |
| 207LP2900X | Anesthesiology | Anesthesiologists frequently perform or supervise pain injections |
| 207RC0000X | Neurology | Neurologists with interventional training may perform diagnostic injections |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
M54.16 | Radiculopathy, lumbosacral region | Radicular pain from lumbar/sacral nerve root irritation may be evaluated or temporarily relieved by targeted paravertebral or medial branch injections |
M54.5 | Low back pain | Common indication for diagnostic or therapeutic facet joint injections when facet arthropathy is suspected |
M47.817 | Spondylosis with radiculopathy, lumbar region | Degenerative changes causing facet-mediated pain or radicular symptoms prompting diagnostic injections |
M51.16 | Intervertebral disc disorders with radiculopathy, lumbar region | Disc-related pathology may coexist; injections can help differentiate facet versus discogenic pain |
M42.15 | Kyphosis, lumbar region | Spinal deformity contributing to facet joint stress and pain targeted by injections |
M99.03 | Subluxation complex, lumbar region | Used rarely but may be listed when segmental dysfunction is considered in pain generation |
G89.29 | Other chronic pain | General code for chronic pain syndromes where targeted injections are part of multimodal management |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
64490 | Injection(s), diagnostic or therapeutic agent, paravertebral facet joint (or nerves innervating the joint), lumbar; single level | Often used for single-level diagnostic/therapeutic facet injections when not using the specific third-level descriptor in 0218T |
64493 | Injection(s), diagnostic or therapeutic agent, paravertebral facet joint (or nerves innervating the joint), lumbar; each additional level (List separately in addition to code for primary procedure) | Billed as an add-on for additional lumbar levels treated during the same session |
64633 | Destruction by neurolytic agent; paravertebral facet joint nerve (e.g., medial branch), lumbar or sacral, single level | Represents neurolytic procedures such as radiofrequency ablation that may follow a diagnostic medial branch block if the block is positive |
77021 | Magnetic resonance guidance for needle placement (MR guidance) | Alternative imaging guidance codes when advanced imaging is used instead of ultrasound; documents image-guided needle placement |
76937 | Ultrasound guidance for needle placement | Used to report ultrasound guidance for needle placement when billing requires a separate code (per payer policy) |