CMS Modified NCD 124 for Vertebral Axial Decompression (VAX-D): What Billing Teams Need to Know in 2026

TL;DR: The Centers for Medicare & Medicaid Services modified NCD 124 governing Vertebral Axial Decompression (VAX-D), effective March 7, 2026. The position is unchanged — VAX-D is not covered by Medicare — but the policy update formalizes and maintains that non-coverage stance. Here's what your billing team needs to do.

The Centers for Medicare & Medicaid Services updated its VAX-D coverage policy under NCD 124 on March 7, 2026. The policy covers vertebral axial decompression — a traction-based treatment for lumbar disk pain — and CMS's position is firm: this service is not covered under Medicare. The policy does not list specific CPT or HCPCS codes, which creates its own set of challenges for billing teams who need to manage claim submissions and patient financial counseling correctly.

Quick-Reference Table

CMS Vertebral Axial Decompression Coverage Criteria and Medical Necessity Requirements 2026

The CMS VAX-D coverage policy is straightforward and leaves no room for interpretation. Medicare does not cover vertebral axial decompression under any clinical circumstances.

CMS cites insufficient scientific data to support the technique's benefits. That's the entire basis for non-coverage — not a prior authorization hurdle, not a documentation gap, not a diagnosis code mismatch. There is no medical necessity pathway that gets this service paid by Medicare.

VAX-D combines pelvic and/or cervical traction applied through a specialized table. The treatment targets symptomatic pain relief from lumbar disk problems. Despite the clinical rationale some practitioners cite, CMS has determined the evidence base does not meet its coverage threshold — and NCD 124 makes that binding across all Medicare Administrative Contractors (MACs) nationwide.

This is a National Coverage Determination, not a Local Coverage Determination (LCD). That distinction matters. An LCD applies only within a specific MAC's jurisdiction, and a provider in a different region might have coverage. An NCD applies to every Medicare beneficiary in every state. There is no MAC that can override this. If you bill Medicare for VAX-D, you will get a claim denial — every time.

Whether VAX-D is covered under Medicare is a question with a clear answer: it is not, under any indication, under any diagnosis, for any patient. That has not changed with this 2026 modification. What has changed is the administrative record — CMS reviewed and updated the policy, and your billing team needs to treat this effective date as a trigger to audit your own workflows.

CMS VAX-D Exclusions and Non-Covered Indications

This entire service is excluded from Medicare reimbursement. That's not the same as a partial coverage policy with a list of excluded indications — NCD 124 excludes VAX-D categorically.

CMS's stated reason is the absence of sufficient scientific data to support the treatment's effectiveness. This classification puts VAX-D in the same category as other techniques CMS has deemed unproven — similar to how CMS has handled other spinal interventions that lack randomized controlled trial support.

The real issue here is that "not covered" and "experimental or investigational" are functionally different from a billing and patient communication standpoint. CMS's language in NCD 124 focuses on insufficient evidence — it does not explicitly call VAX-D experimental. But the practical result is identical: Medicare will not pay, and the financial exposure falls on the patient unless you document that correctly.

Coverage Indications at a Glance

CMS Vertebral Axial Decompression Billing Guidelines and Action Items 2026

The effective date of March 7, 2026 is your line in the sand. Here's what to do before and after it.

The billing guidelines here are less about coding complexity and more about protecting your practice from unnecessary denials and patient disputes. VAX-D billing under Medicare is a simple equation: don't do it.

CPT, HCPCS, and ICD-10 Codes for Vertebral Axial Decompression Under NCD 124

A Note on Code Availability

NCD 124 does not list specific CPT codes, HCPCS codes, or ICD-10-CM diagnosis codes. This is the policy as published by CMS — no code-level granularity is provided.

That creates a practical problem for your billing team. Without a defined code set, you cannot rely on your billing system's payer edits to catch VAX-D claims before they go out the door. There is no list of codes to flag and block at the charge capture level.

This means your controls have to be process-based, not code-based. Train your coding staff to recognize VAX-D by its clinical description — pelvic and/or cervical traction applied through a specialized decompression table for lumbar disk pain — not by a code on a blocked list. When they see that description in documentation, the service is non-covered under Medicare, regardless of what code might otherwise apply.

If your practice bills standard traction codes to Medicare for other, covered indications, talk to your compliance officer about how to clearly distinguish those services from VAX-D in your documentation. The distinction needs to live in the clinical notes, not just in the code selection.

Not Covered Services