Intraosseous Radiofrequency Ablation of the Basivertebral Nerve for Chronic Low Back Pain (Preauthorization Required)
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Defines clinical coverage, criteria, contraindications, and coding for intraosseous radiofrequency ablation of the basivertebral nerve for vertebrogenic chronic low back pain (L3–S1) and requires preauthorization.
No material clinical or coverage changes in this revision.
Coverage Criteria for Basivertebral Nerve Ablation
inv-01: Reasonable and necessary criteria (Initial therapy)
Covered when ALL of the following are met
inv-02: Not reasonable and necessary / Other indications
Not reasonable and necessary when:
Contraindications to intraosseous radiofrequency ablation of the basivertebral nerve include: skeletally immature patients (age <18 years); severe cardiac or pulmonary compromise; radicular pain; when the targeted ablation zone is <10 mm from a sensitive structure (including the vertebral foramen); active systemic or local infection at the treatment site; pregnancy; and presence of implantable pulse generators or other electronic implants.
This policy defines clinical coverage and specific preauthorization requirements for intraosseous radiofrequency ablation of the basivertebral nerve (L3–S1). Preauthorization is required and benefit determination is dependent on the member’s applicable benefit contract; these Medical Policies do not constitute authorization, certification, or a contract for benefits.
Any application of intraosseous radiofrequency ablation that does not meet all of the criteria listed in this policy (including age >18 years, chronic low back pain ≥6 months, required conservative therapy, MRI demonstrating Modic Type 1 or 2 changes at L3–S1, and limitation of activities of daily living) is considered not reasonable and necessary and therefore not covered.
Coding and Related Criteria
| 22899 | UNLISTED PROCEDURE SPINE |
| 64628 | THERMAL DSTRJ INTRAOSSEOUS BVN 1ST 2 LMBR/SAC - Thermal destruction of intraosseous basivertebral nerve, including all imaging guidance; first 2 vertebral bodies, lumbar or sacral |
| 64629 | THERMAL DSTRJ INTRAOSSEOUS BVN EA ADDL LMBR/SAC - Thermal destruction of intraosseous basivertebral nerve, including all imaging guidance; each additional vertebral body, lumbar or sacral (List separately in addition to code for primary procedure) |
| affected codes | CPT codes referenced generically by the policy; specific CPT codes are not listed in these chunks. |
Provider Actions, Authorization & Documentation
Preauthorization required — BVN ablation
Preauthorization is required for intraosseous radiofrequency ablation of the basivertebral nerve; the procedure (CPT 64628/64629 or unlisted 22899) is considered reasonable and necessary only when the policy's coverage criteria are fully met.
Preauthorization process — follow BCBSN procedures
Obtain preauthorization according to BCBS of Nebraska procedures before scheduling the intraosseous radiofrequency ablation; authorization should document that all policy criteria are satisfied.
- Preauthorization must be requested through BCBSN preauthorization channels.
- Ensure the request demonstrates that the patient meets all coverage criteria.
Conservative therapy prerequisites
Conservative therapies must be tried and failed prior to approval: at least 6 weeks of documented physical therapy and at least 6 months of pharmacotherapy.
- Physical therapy: ≥ 6 weeks documented.
- Pharmacotherapy: ≥ 6 months (narcotics, non‑narcotic analgesics, muscle relaxants, neuroleptics, and/or anti‑inflammatories).
Required documentation for preauthorization
Include the following documentation with the preauthorization request: confirmation of skeletal maturity (age >18), duration of chronic low back pain (≥6 months), documentation of failed conservative therapy (≥6 weeks PT and ≥6 months pharmacotherapy), MRI showing Modic Type 1 or 2 changes at one or more vertebrae from L3 to S1, and the procedure code pairing (CPT 64628/64629 or 22899 as applicable).
Verify plan‑specific benefit terms and follow plan rules
Follow plan‑specific benefit contract terms and BCBSN preauthorization procedures when requesting coverage; Medical Policies are used in administering plan benefits but do not replace benefit contract rules.
- Verify member benefit coverage and applicable contract terms before seeking authorization.
Denial triggers if coverage criteria not met
Requests will be denied if the patient does not meet all coverage criteria (e.g., age >18, chronic LBP ≥6 months, required conservative therapy, MRI demonstrating Modic Type 1 or 2 at L3–S1, and ADL limitation) or if the indication is outside the specified L3–S1 vertebral levels.
- Denial triggers include failure to document required conservative therapy, inadequate duration of pain, absence of Modic changes at L3–S1, or indications outside the policy's stated uses.
Benefits determined by applicable benefit contract
Benefits for a specific service or item are determined by the terms and conditions of the member's applicable benefit contract; Medical Policies do not constitute authorization, certification, or a contract for benefits.
- Even if policy criteria are met, coverage depends on the member's benefit plan provisions.
Required Conservative Treatments Prior to Approval
inv-24: Must be documented prior to approval — >= 6 weeks PT; >= 6 months pharmacotherapy
Must be documented prior to approval
Documentation should be included with preauthorization request
Imaging Requirements
MRI with Modic Type 1 or 2 required
For BVN ablation, MRI must demonstrate Modic Type 1 or Type 2 changes at one or more vertebrae from L3 to S1; this imaging finding is required for coverage consideration.
- Ensure MRI report documents Modic Type 1 or Type 2 changes at involved vertebral levels (L3–S1).
Definitions and Key Terms
Background
Intraosseous radiofrequency ablation of the basivertebral nerve is a minimally invasive, outpatient procedure intended to treat vertebrogenic chronic low back pain by thermally disrupting nociceptive signaling in the basivertebral nerve within the vertebral body. Diagnosis and patient selection rely on MRI evidence of vertebral endplate degeneration—specifically Modic Type 1 or Type 2 changes—at one or more levels from L3 through S1. The procedure is considered when conservative measures have failed (including at least 6 weeks of documented physical therapy and at least 6 months of pharmacotherapy) and the patient’s activities of daily living remain limited due to persistent low back pain.
Not Covered Indications
Use of intraosseous radiofrequency ablation for indications other than vertebrogenic chronic low back pain with MRI-confirmed Modic Type 1 or Type 2 changes at L3–S1 is considered not reasonable and necessary because effectiveness for other indications has not been established, and therefore such applications are not covered.
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