CurrentBlue Cross Blue Shield - Rhode IslandPolicy N/A

Image-Guided Minimally Invasive Spinal Decompression for Spinal Stenosis

Defines coverage stance for percutaneous image-guided minimally invasive spinal decompression (mild®) for spinal stenosis for Blue Cross & Blue Shield of Rhode Island Medicare Advantage and Commercial products, including coding notes for HCPCS G0276.

Policy Summary

PayerBlue Cross Blue Shield - Rhode Island

PolicyImage-Guided Minimally Invasive Spinal Decompression for Spinal Stenosis

Policy CodePolicy N/A

Change TypeNo material change

Effective DateN/A

Next Review DateN/A

Key ActionBill Medicare clinical study services with the Q0 or Q1 modifier per CMS procedures; verify member benefits before providing services.

SourceLink

POLICY UPDATE CHANGES

No material clinical or coverage changes in this revision.

G0276HCPCS code addressed

CED onlyMedicare Advantage stance

Not coveredCommercial stance

15References cited

Coverage Criteria

Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.

Medicare Advantage — Covered only in CMS CED trial

Medicare Advantage coverage

Medicare Advantage CED coverage: Percutaneous image-guided lumbar decompression (PILD) is covered only when performed as a blinded procedure or placebo-control as part of a CMS‑approved coverage with evidence development (CED) clinical trial meeting CMS decision memo criteria.must be CMS‑approved CED trial

Follow CMS billing and modifier procedures (Q0/Q1).

Commercial Products — Not medically necessary

Commercial Products coverage stance

Commercial coverage decision: IG‑MILD (including PILD as described) is considered not medically necessary for Commercial Products because the evidence is insufficient to determine that the technology results in an improvement in net health outcome.evidence insufficient

G0276 is listed as not medically necessary for Commercial Products; services will be denied per plan rules.

The procedure is indicated for central lumbar spinal stenosis only. Image‑guided minimally invasive spinal decompression (IG‑MILD / mild®) is a percutaneous, fluoroscopically guided technique that removes hypertrophied ligamentum flavum and small laminar bone to decompress the central canal. The devices and technique are not intended for use near the lateral neural elements and are contraindicated for disc procedures or for treatment of nerve root compression or disc herniation.

Providers must verify member benefits and eligibility before delivering services. If a service is determined to be not medically necessary or a non-covered benefit, the provider may not charge the member unless the member was informed and agreed in writing in advance to accept financial responsibility. Confirm benefit details through the provider call center and the member's subscriber agreement or Evidence of Coverage.

For Commercial Products, IG‑MILD (including percutaneous image‑guided lumbar decompression or PILD performed as a blinded procedure/placebo‑control) is considered not medically necessary. The available evidence, including randomized trials and systematic reviews, is insufficient to demonstrate an improvement in net health outcome, and therefore the service (HCPCS G0276 when used in this context) is not covered outside of appropriate clinical trials.

Coding and Billing Codes

Medicare Advantage HCPCS — addressed codeHCPCSCovered

G0276

Blinded procedure for lumbar stenosis, percutaneous image-guided lumbar decompression (PILD) or placebo-control, performed in an approved coverage with evidence development (CED) clinical trial

Required claim modifiers for CMS clinical study billingModifier

Q0	Investigational clinical service provided in a clinical research study that is in an approved research study
Q1	Routine clinical service provided in a clinical research study that is in an approved clinical research study

Provider Actions and Billing Requirements

Prior Authorization

Not applicable.

Note

Prior authorization verification

Verify prior authorization and member benefits/eligibility with the provider call center and the member's contract or Evidence of Coverage prior to scheduling or billing services.

Note

Benefits variability

Benefits may vary between groups and contracts. Refer to the member's Benefit Booklet, Evidence of Coverage, or Subscriber Agreement for applicable coverage, not medically necessary, or not covered determinations.

Documentation Required

Billing documentation and modifier requirement

For Medicare Advantage members enrolled in a CMS-approved clinical study, bill covered clinical trial services with the appropriate modifier and follow the Clinical Trials Medicare Advantage Plans billing procedures.

G0276 may be covered for Medicare Advantage members when performed as part of a CMS-approved Coverage with Evidence Development (CED) clinical trial.
Claim lines for services rendered as part of a CMS-approved clinical study must include one of the following modifiers:
• Modifier Q0 — Investigational clinical service provided in a clinical research study in an approved study (Medicare claims filed without Q0 may deny as not medically necessary).
• Modifier Q1 — Routine clinical service provided in a clinical research study in an approved study.

Denial Risk

Commercial product denial trigger

For Commercial products, the procedure code listed is considered not medically necessary and will not be covered.

G0276 — Blinded procedure for lumbar stenosis, percutaneous image-guided lumbar decompression (PILD) or placebo-control, performed in an approved CED clinical trial — Not medically necessary for Commercial products.

Billing Rule

Benefit verification and member financial liability risk

Consult member benefits and eligibility via the provider call center before providing services. If services are determined to be non-covered or not medically necessary, the member may be held financially responsible unless notified and having provided written consent in advance.

Background

Lumbar spinal stenosis (LSS) is a pathological narrowing of the spinal canal that can compress the spinal cord and/or nerve roots, commonly producing neurogenic claudication with pain and disability that worsen on standing or walking. Conventional posterior decompression procedures (eg, laminectomy, laminotomy) vary in invasiveness and carry risks including postoperative instability. IG‑MILD (mild®) is an ultra‑minimally invasive, percutaneous decompressive technique performed under fluoroscopic guidance that targets hypertrophied ligamentum flavum and small laminar bone to decompress the central canal while remaining dorsal to the dura; it is not designed to address lateral neural elements or disc herniations.

Definitions

Image-guided minimally invasive spinal decompression (IG‑MILD / mild®) — definition and tooling

Procedure definitionA percutaneous, fluoroscopically guided decompression of the central lumbar spinal canal using a specialized cannula and single‑use mild® tool kit to resect thickened ligamentum flavum and small laminar bone fragments; performed under fluoroscopic guidance without endoscopic or microscopic visualization.

Intended anatomic targetCentral lumbar spinal stenosis (central canal) — not intended to address nerve root compression, lateral neural elements, or disc herniation.

Key tooling/componentsSpecialized 6-gauge cannula, portal cannula, surgical guide, bone rongeur, tissue sculptor, trocar, and contrast medium used to visualize the epidural space during fluoroscopically guided tissue and bone removal.

Guidance and visualizationProcedure performed solely under fluoroscopic guidance with contrast medium instilled for visualization; no endoscopic or microscopic visualization is used.

Contraindications/limitationsNot intended for use near lateral neural elements and contraindicated for disc procedures.

G0276 — HCPCS code description for PILD/placebo-control procedure

HCPCS codeG0276 — Blinded procedure for lumbar stenosis, percutaneous image-guided lumbar decompression (PILD) or placebo-control, performed in an approved coverage with evidence development (CED) clinical trial.

Medicare Advantage contextMay be covered for Medicare Advantage Plan members only when performed as part of a CMS‑approved CED clinical trial; follow CMS billing and modifier procedures.

Required claim modifiers for study billingModifier Q0 — Investigational clinical service provided in an approved research study; Modifier Q1 — Routine clinical service provided in an approved clinical research study.

Denial risk without modifierMedicare claims filed without the Q0 modifier will deny as not medically necessary when billed for services rendered as part of a CMS approved clinical study.