UnitedHealthcare Ablative Spinal Policy Update

Coverage Criteria for Ablative Procedures

General medical necessity

Covered when ALL of the following are met per InterQual CP: Procedures, Neuroablation, Percutaneous.

InterQual adherence: Procedure meets InterQual CP: Procedures, Neuroablation, Percutaneous clinical coverage criteria

Refer to InterQual for specific inclusion/exclusion and conservative care requirements

Unproven / Not Medically Necessary Procedures

The following are considered unproven and not medically necessary due to insufficient evidence of efficacy:

Unproven ablative techniques: Endoscopic radiofrequency ablation/endoscopic rhizotomy; Pulsed Radiofrequency Ablation of the facet nerves of the cervical, thoracic, or lumbar region, sacral nerve root, or dorsal root ganglion; Cooled Radiofrequency Ablation; Laser ablation (including pulsed, continuous, or low level); Intraosseous radiofrequency ablation of the basivertebral nerve (e.g., Intracept) for the treatment of spinal pain.

Listed explicitly as unproven/not medically necessary in this policy

Trial-derived coverage criteria (informational)

Covered when ALL of the following trial-derived selection features are met (as commonly applied in the clinical studies cited):

Primary selection criteria: Adult patient with chronic (>= 6 months) nonradiating axial low back pain; MRI demonstrates Modic type 1 or type 2 changes at vertebral levels L3–S1; symptoms refractory to prior conservative care; baseline disability and pain documented (validated ODI and VAS/NRS).see text

Reflects enrollment criteria used in the referenced BVNA randomized and pooled studies; trials required documented Modic changes and minimum symptom duration.

Evidence summary (informational): Randomized and prospective trials report clinically meaningful improvements in ODI and pain scores with durable effects in pooled follow-up (reported at 1–5 years), reductions in opioid use and spinal injections, and variable responder rates; evidence limitations include manufacturer sponsorship, open-label extensions, and crossover in some trials.

See SMART, INTRACEPT, and pooled analyses for outcome magnitudes and limitations.

Intraosseous radiofrequency ablation of the basivertebral nerve (e.g., Intracept®) is designated unproven and not medically necessary for treatment of spinal pain due to insufficient evidence of efficacy. This technique is explicitly listed among facet joint nerve ablation approaches judged to lack adequate support and therefore not covered under the policy.

Procedures may be considered investigational or not covered when substantive evidence gaps exist — for example, when randomized controlled trials do not demonstrate convincing advantages over sham or when trials are few, small, open-label, manufacturer‑sponsored, or at high risk of bias. Published reviews (Hayes; ECRI) concluded that available studies of intraosseous BVN ablation show inconsistent or limited benefit versus sham or conservative care and that additional high‑quality, blinded RCTs are required to resolve uncertainty.

The policy revision dated 04/01/2026 notes that cryoablation (cryodenervation, cryoneurolysis, cryosurgery, or cryoanesthesia) was removed from the prior list of excluded techniques, reflecting an update to the unproven/not medically necessary indications in the policy history.

The policy lists several ablative procedures as unproven and not medically necessary, including endoscopic radiofrequency ablation/endoscopic rhizotomy, pulsed radiofrequency ablation of facet nerves (cervical, thoracic, lumbar), sacral nerve root, or dorsal root ganglion, and cooled radiofrequency ablation. These techniques are identified because current evidence does not establish sufficient efficacy for coverage.

Use of an ablative procedure may be judged not medically necessary when patient selection departs from the populations studied in controlled trials. For vertebrogenic/BVNA procedures, key trial enrollment features included adults with chronic (≥6 months) nonradiating low back pain and Modic type 1 or 2 changes at L3–S1; absence of these imaging or clinical characteristics reduces the applicability of trial evidence and increases the likelihood of a denial.

The policy revision establishes a revised list of indications considered unproven or not medically necessary; the document’s Summary of Changes indicates specific items were updated on 04/01/2026. Where an indication is listed as unproven/not medically necessary in this policy excerpt, coverage is not supported by the available evidence and may be denied.

Applicable Codes and Coding Notes

Applicable CodesCPT

22899	Unlisted procedure, spine [when used to report the Intracept procedure or cooled radiofrequency ablation]
27299	Unlisted procedure, pelvis or hip joint.
64625	Radiofrequency ablation, nerves innervating the sacroiliac joint, with image guidance (i.e., fluoroscopy or computed tomography).
64628	Thermal destruction of intraosseous basivertebral nerve, including all imaging guidance; first 2 vertebral bodies, lumbar or sacral.
64629	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).
64999	Unlisted procedure, nervous system (to be used for Pulsed Radiofrequency Ablation)

Diagnostic block threshold used in referenced study

Study diagnostic-block threshold> 75% pain reduction

Provider Actions, Authorization & Documentation

Prior Authorization

Prior Authorization Required

Prior Authorization: UnitedHealthcare requires prior authorization for intraosseous radiofrequency ablation of the basivertebral nerve when applicable. InterQual® CP: Procedures, Neuroablation, Percutaneous is the primary source for medical necessity criteria and will be used to adjudicate requests. Procedures that do not meet InterQual clinical coverage criteria may be denied as not medically necessary.

InterQual CP: Procedures, Neuroablation, Percutaneous is used for primary medical/surgical criteria and prior authorization determinations.
Verify benefit-plan, federal, or state contractual requirements prior to authorization; those requirements govern in case of conflict.

Documentation Required

Confirm Trial‑Like Selection Criteria

Authorization reviews should confirm that the patient meets the selection criteria used in the pivotal trials and published studies. Specifically, documentation should demonstrate chronic (≥ 6 months) nonradiating low back pain thought to be vertebrogenic in origin, presence of Modic type 1 or 2 endplate changes at levels L3–S1, and baseline symptom severity consistent with trial entry (for example, baseline ODI and/or VAS scores as recorded in the study populations).

Background on Ablative Procedures

Ablative procedures (radiofrequency, laser, cryo, chemical) are intended to disrupt pain‑conducting nerve tissue to relieve spinal pain. Evidence quality varies by technique; the policy references InterQual CP: Procedures, Neuroablation, Percutaneous as the primary source for defining medical necessity and applying conservative care and selection criteria.

Definitions of Techniques and Indications

Cooled Radiofrequency Ablation

DefinitionCooled Radiofrequency Ablation: The application of continuous high frequency electrical current to ablate nerve tissue using water-cooled electrodes/probes.

Pulsed Radiofrequency Ablation

DefinitionPulsed Radiofrequency Ablation: Technique that delivers intermittent short bursts of energy using a probe temperature of 42° to 45° C (does not apply continuous heating).

Vertebrogenic pain / BVNA indication

Indication (trial population)Chronic nonradiating low back pain ≥6 months, thought to originate from vertebral endplates with Modic type 1 and/or type 2 changes between L3 and S1.

Required imaging

Conservative Treatment Requirements Before Ablative Procedures

Documented failure of conservative therapy

Documented failure of conservative therapy is required (trial-enrollment minimum):

Conservative therapy duration: Documented failure of nonsurgical/conservative therapies for >= 6 months prior to consideration of ablative procedures (trial-enrollment minimum).>= 6 months

Trials of BVNA enrolled patients with minimum 6 months of refractory CLBP; document prior conservative care and prior spinal interventions.

Frequency and Repeat Procedure Guidance

RFA procedures generally (frequency guidance)

Repeat-frequency guidance (general RFA)No specific repeat-frequency guidance for BVNA provided in these excerpts; apply analogous RFA guidance (e.g., repeat no more often than every ≥6 months, maximum ~2 times/year when benefit achieved).

Regional timingIf different regions are treated, procedures may be performed no sooner than 1 week (preferably 2 weeks) apart when not done in the same setting.

Thermal RFA (durability)

Durable relief timeframeThermal RFA provides durable relief for at least 6 months as noted in NASS guidance.

Use contextSuggested for zygapophyseal joint low back pain with appropriate diagnostic criteria.

Imaging & Diagnostic Block Requirements

Note

Procedures and Indications Not Covered

Not covered procedures explicitly include endoscopic radiofrequency ablation/endoscopic rhizotomy, pulsed radiofrequency ablation of the facet nerves (cervical, thoracic, lumbar), and cooled radiofrequency ablation. The policy history also documents a revision to the list of unproven/not medically necessary techniques effective 04/01/2026.

Endoscopic radiofrequency ablation/endoscopic rhizotomy and pulsed radiofrequency ablation of facet nerves are described as unproven and not medically necessary because evidence demonstrating clinical benefit over standard or sham procedures is insufficient.

Cooled radiofrequency ablation and laser ablation techniques are similarly listed among procedures lacking adequate evidence to support coverage for spinal pain indications and are therefore designated not medically necessary in this policy.

Use of BVNA or other investigational ablative procedures for indications that do not match trial populations (for example, absence of Modic changes at L3–S1 or predominantly radicular pain) is not supported by the cited evidence and may be considered not medically necessary.

The policy revision (effective 04/01/2026) indicates the unproven/not medically necessary list was revised; clinicians and reviewers should consult the current policy text for the updated list when making coverage determinations.

Endoscopic radiofrequency ablation/endoscopic rhizotomy, pulsed radiofrequency ablation of facet nerves, and other listed techniques remain designated as not medically necessary due to limited or inconclusive evidence; this determination applies across cervical, thoracic, and lumbar regions as specified in the policy.

OpenPayer

Ablative Treatment for Spinal Pain (for Kansas Only)