Axial/Spinal Decompression Therapy/Mechanical Traction (Provided in a Clinic Setting) - (CPG275) | CIGNA Coverage Update

Cigna modified CPG275 (cpg275_axial_spinal_decomp_mechanical_traction) covering axial/spinal decompression therapy and mechanical traction, effective September 26, 2025. Here's what billing teams need to do.

Cigna Healthcare updated its clinical policy bulletin for clinic-based mechanical traction and spinal decompression. The revised coverage policy draws a hard line between two billing codes: CPT 97012 for mechanical traction and HCPCS S9090 for vertebral axial decompression. One gets covered. One doesn't. If your team bills both, this change matters right now.

Quick-Reference Table

Cigna Mechanical Traction Coverage Criteria and Medical Necessity Requirements 2025

The Cigna mechanical traction coverage policy under CPG275 separates traditional clinic-based traction from branded spinal decompression systems. That distinction drives every medical necessity and reimbursement decision in this policy.

CPT 97012 — application of a mechanical traction modality — is considered medically necessary when clinical criteria are met. The policy covers both cervical and lumbar traction delivered in a clinical setting. Cervical traction addresses herniated disc with nerve root compression, cervical radiculopathy, and restricted joint mobility in the neck. Lumbar traction addresses low back pain and sciatica when traction is delivered as part of a broader treatment plan.

The clinical basis Cigna uses here is established. Cervical traction forces between 20 and 50 pounds create intervertebral separation after roughly two minutes of sustained pull. The policy recognizes both continuous/static traction and intermittent/cyclical traction as valid delivery methods. Duration ranges from a few minutes up to 20-30 minutes per session, one to three times weekly.

Lumbar traction uses a harness with Velcro strapping placed around the lower rib cage and iliac crest. Force and duration can be varied in continuous or intermittent mode. Cigna covers this when billed under CPT 97012 and when medical necessity criteria support it.

What the policy does not do is specify prior authorization triggers for CPT 97012 directly in the CPG275 language. That doesn't mean prior authorization isn't required — your plan contracts with Cigna may carry PA requirements separately. Check your specific plan agreements before assuming CPT 97012 is exempt from prior auth requirements. If you're unsure, ask your compliance officer before billing.

Cigna Spinal Decompression Therapy Exclusions and Non-Covered Indications

This is where the policy cuts hard. HCPCS S9090 — vertebral axial decompression, per session — is explicitly classified as experimental, investigational, and unproven under the Cigna axial/spinal decompression therapy coverage policy.

Vertebral axial decompression (VAX-D) and similar motorized decompression tables go by brand names like DRX9000 and Lordex. These systems are marketed as more sophisticated than standard mechanical traction. Cigna disagrees with that framing, at least for coverage purposes.

The policy's rationale points to a core problem: the proposed mechanisms for spinal decompression have not been supported by sufficient clinical evidence. Cigna acknowledges the theory — spinal elongation, decreased lordosis, increased intervertebral space, reduced nerve root compression — but the evidence base doesn't support those mechanisms with enough rigor to cross the medical necessity threshold.

This is a real financial exposure point. Vertebral axial decompression sessions typically run $50–$150 each, and patients often receive multiple sessions per week. If your practice has been billing S9090 expecting commercial reimbursement from Cigna, those claims are being denied — or should be. If they haven't been, that's a billing error waiting to surface in an audit.

Don't bill S9090 for Cigna patients. The effective date is September 26, 2025, but this reflects the clinical policy standard. Check your historical claims too.

Coverage Indications at a Glance

Cigna Mechanical Traction Billing Guidelines and Action Items 2025

The billing implications here are straightforward once you know the rules. Here's exactly what your team needs to do before and after the September 26, 2025 effective date.

1. Audit all S9090 claims billed to Cigna — now.
Pull every claim from the past 12-24 months where HCPCS S9090 was billed to a Cigna plan. If those claims were paid, you may be sitting on overpayments that surface in an audit. If they were denied, confirm the denial reason matches the experimental/investigational designation. Document everything.

2. Remove S9090 from your Cigna charge capture.
Don't wait. Update your charge capture system to flag or block HCPCS S9090 for Cigna payers before September 26, 2025. This includes Cigna commercial, Cigna Medicare Advantage, and any Cigna-administered ASO plans. One miscoded claim can trigger a larger records request.

3. Map axial/spinal decompression services to CPT 97012 — only when appropriate.
If your practice provides mechanical traction that meets the clinical definition under CPT 97012 (force-controlled, clinic-based, provider-directed), bill that code instead. Do not use CPT 97012 as a workaround to bill for axial decompression equipment that functionally operates as VAX-D or DRX9000 systems. That's upcoding, and Cigna's policy makes the distinction explicit.

4. Confirm prior authorization requirements at the plan level.
CPG275 doesn't list PA triggers for CPT 97012 directly. But your Cigna plan contracts may. Contact your Cigna provider relations rep or check your contract documentation for PA thresholds — typically tied to visit counts or diagnosis categories. Do this before September 26, 2025, not after a denial.

5. Document medical necessity clearly for every CPT 97012 claim.
Cigna covers mechanical traction for cervical and lumbar indications when criteria are met. Your documentation needs to reflect: the clinical indication (herniated disc, radiculopathy, low back pain, sciatica), the traction parameters used (force in pounds, duration, continuous vs. intermittent), and how traction fits into the broader treatment plan. Vague notes won't survive a medical necessity review.

6. Brief your treating providers on the S9090 exclusion.
Physical therapists and chiropractors who use spinal decompression tables may not know this coverage policy by name. Share the CPG275 update with them directly. If they're ordering or delivering services billed as S9090, the claim denial falls on your practice — not theirs.

If you have any volume of Cigna patients receiving spinal decompression services and you're not sure how your billing maps to CPT 97012 vs. HCPCS S9090, loop in your billing consultant or compliance officer before the effective date.

CPT, HCPCS, and ICD-10 Codes for Spinal Decompression and Mechanical Traction Under cpg275_axial_spinal_decomp_mechanical_traction

Covered CPT Codes (When Medical Necessity Criteria Are Met)

Not Covered / Experimental Codes

No ICD-10-CM codes are listed in the CPG275 policy document. The policy does not specify covered diagnosis codes by ICD-10 number. Your diagnosis coding should align with the clinical indications described in the policy — cervical radiculopathy, herniated disc, low back pain, sciatica — using the most specific ICD-10-CM codes available. Work with your coding team to map these correctly.

A Note on the Covered vs. Experimental Split

The S9090/97012 divide is not a new concept. This is the same pattern Cigna has applied to other categories where a newer, branded variation of a therapy gets marketed as superior to a standard modality — and the evidence doesn't back up the premium positioning.

Traditional mechanical traction has decades of clinical use. The mechanism is understood, the parameters are measurable, and the billing code (CPT 97012) is well established in physical therapy and rehabilitation billing. Vertebral axial decompression makes stronger claims — nerve rehydration, disc restoration, sustained decompression — and those claims haven't been validated at the level Cigna requires for coverage policy purposes.

The real issue for billing teams is not the clinical debate. It's that S9090 and 97012 can look similar at the point of service. The equipment is often in the same room. The patient experience may feel identical. But the coverage policy treats them as categorically different. Your documentation and charge capture need to reflect that difference precisely.