CurrentAetnaPolicy 0569

Lumbar Traction Devices

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This policy addresses coverage, documentation, and exclusions for lumbar traction devices used to treat low back pain and related indications for Aetna members and suppliers.

Policy Summary

PayerAetna

PolicyLumbar Traction Devices

Policy CodePolicy 0569

Change TypeNo material change

Effective DateNov 9, 2001

Last ReviewJun 10, 2027

Next Review DateJun 10, 2027

Key ActionProvide a completed Standard Written Order (SWO) with required elements to the supplier before claim submission.

SourceLink

POLICY UPDATE CHANGES

No material clinical or coverage changes in this revision.

7device types listed as experimental/unproven

4SWO elements required

4max sessions/week (standard)

Limitedevidence quality

510(k)regulatory pathway noted

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CurrentAetnaPolicy 0569

Lumbar Traction Devices

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This policy addresses coverage, documentation, and exclusions for lumbar traction devices used to treat low back pain and related indications for Aetna members and suppliers.

Policy Summary

PayerAetna

PolicyLumbar Traction Devices

Policy CodePolicy 0569

Change TypeNo material change

Effective DateNov 9, 2001

Last ReviewJun 10, 2027

Next Review DateJun 10, 2027

Key ActionProvide a completed Standard Written Order (SWO) with required elements to the supplier before claim submission.

SourceLink

POLICY UPDATE CHANGES

No material clinical or coverage changes in this revision.

7device types listed as experimental/unproven

4SWO elements required

4max sessions/week (standard)

Limitedevidence quality

510(k)regulatory pathway noted

Coverage Criteria and Evidence Summary

Experimental, Investigational, or Unproven

Devices or interventions considered experimental, investigational, or unproven for treating low back pain or other indications:

Experimental/Unproven device list: Autotraction devices; axial spinal unloading (gravity-dependent) devices (e.g., LTX 3000, Triton DTS, Z-Grav Spinal Decompression Table); home pneumatic lumbar traction devices (e.g., Orthotrac Pneumatic Vest, Saunders Lumbar HomeTrac, Saunders STx, DDS 500 Lumbar Traction); inversion tables (e.g., Fit Spine LX9); lumbar exoskeleton traction devices (for lumbar disc herniation and other indications); lumbar lordotic curve-controlled traction devices (e.g., Kinetrac-9900).

Listed explicitly as experimental, investigational, or unproven in policy. A new prescription is required each time a new device or repair is requisitioned; sufficient medical record documentation must be provided (supplier statements alone are insufficient).

The policy lists specific procedure and HCPCS codes that are not covered for the indications in this CPB. Examples include CPT/HCPCS codes: 97012 (mechanical traction), 97140 (manual therapy techniques including manual traction), E0830 (ambulatory traction device), L0631 (lumbar‑sacral orthosis, sagittal control), and S9090 (vertebral axial decompression per session). The policy also names specific device types and products that are not covered, for example the Z‑Grav spinal decompression table, lumbar lordotic curve‑controlled traction devices, inversion tables (e.g., Fit Spine LX9), and lumbar exoskeleton traction devices. ICD‑10 diagnoses referenced as not covered for CPB indications include lumbar intervertebral disc disorder and low back pain codes such as M51.06, M51.16, M51.26, M51.36x–M51.369, M51.86, M54.50.

Clinical practice guidelines have identified insufficient evidence to recommend for or against traction for some indications. For example, the North American Spine Society guideline on degenerative lumbar spinal stenosis (2011) stated there was insufficient evidence to make a recommendation for or against traction or electrical stimulation for lumbar spinal stenosis. The Work Loss Data Institute guideline on low back (acute & chronic) listed several traction/decompression interventions (e.g., DRX®, Powered traction devices/Lordex®, VAX‑D®, IDD therapy) among procedures that were considered but not recommended.

Multiple systematic reviews and evidence summaries conclude that traction is not effective for acute low back pain. Older and more recent reviews (including the AHCPR guideline on acute LBP and a Cochrane review of traction for LBP with or without sciatica) found that traction did not demonstrate benefit for pain, disability, or work absence compared with placebo, sham, or other treatments. The Cochrane review noted that overall traction is probably not effective, and that available randomized trials do not support a clear clinical benefit.

For many home pneumatic and spinal unloading devices, there is a lack of well‑designed controlled clinical studies demonstrating reductions in pain and disability or improvements in function. Although device manufacturers and small uncontrolled studies report physiologic or preliminary symptomatic changes (for example, reports on the LTX 3000, DDS 500, Orthotrac, Saunders HomeTrac/STx), these reports are limited by uncontrolled designs, short duration, small sample sizes, and subjective endpoints, leaving insufficient evidence to support clinical effectiveness.

Codes and Billing Categories

CPT/HCPCS codes mentionedmixed

97012	Application of a modality to one or more areas; traction, mechanical.
97140	Manual therapy techniques (e.g., mobilization/manipulation, manual lymphatic drainage, manual traction), one or more regions, each 15 minutes.
E0830	Ambulatory traction device, all types, each.
L0631	Lumbar-sacral orthosis, sagittal control, with rigid anterior and posterior panels, posterior extends from sacrococcygeal junction to T-9 vertebra, produces intracavitary pressure to reduce load on the intervertebral discs, includes straps, closures, may include padding, shoulder straps, pendulous abdomen design, prefabricated item that has been trimmed, bent, molded, assembled, or otherwise customized to fit a specific patient by an individual with expertise.
S9090	Vertebral axial decompression, per session [Triton DTS].

ICD-10 codes mentioned (not covered for CPB indications)ICD-10Not Covered

M51.06	Intervertebral disc disorders with myelopathy, lumbar region.
M51.16	Intervertebral disc disorders with radiculopathy, lumbar region.
M51.26	Other intervertebral disc displacement, lumbar region.
M51.360 - M51.369	Other intervertebral disc degeneration, lumbar region.
M51.86	Other intervertebral disc disorders, lumbar region.
M54.50	Low back pain
M54.59	Low back pain

Provider Responsibilities, Documentation, and Billing Rules

Prior Authorization

Provide a completed Standard Written Order (SWO) to supplier before billing

A completed Standard Written Order (SWO) that includes member name/ID, order date, general item description (HCPCS code, HCPCS narrative, or brand/model), each separately billed option/accessory with HCPCS codes and quantities, treating practitioner name and NPI, and the treating practitioner’s signature must be communicated to the supplier before a claim is submitted.

Member name or identification number
Order date
General description of the item (HCPCS code, HCPCS narrative, or brand/model)
List each separately billed option, accessory, or supply with HCPCS code and quantity
Treating practitioner name and NPI
Treating practitioner signature

Note

Prior authorization not explicitly required by policy text; use plan rules

Clinical Background and Context

Traction refers to interventions that apply a pulling force to the spine and may be delivered manually or mechanically. Common approaches include manual traction, motorized or table‑based mechanical traction, inversion or gravity‑assisted traction (e.g., inversion tables), autotraction (use of the patient’s own weight on a moving table), home pneumatic lumbar traction (vest or belt systems), and spinal unloading devices that shift weight‑bearing from the lumbar spine to the hips. Traction is often used in combination with other conservative treatments such as medication, physical therapy, and electrotherapy rather than as a standalone therapy.

Device Definitions and Terminology

Autotraction — definition and examples

DefinitionUse of the patient’s own weight to generate the traction force; the patient determines the traction force, enabling positional and gravity-assisted multi-plane traction.

Typical devices / examplesTables with custom-contoured rollers such as the Spinalator, Spinalign Massage, Intersegmental Traction Table, and the Anatomotor.

Device mechanicsContoured rollers move underneath the patient and can provide roller elevation, roller travel, and roller rotation (3-motor operating system).

Evidence summaryOnly two randomized clinical trials compare autotraction with other traction forms; results are conflicting (one favored autotraction; one found no difference).

Spinal unloading devices — description and examples

Description

Policy Revision History

2001-11-09effective

Policy originally became effective.

2026-08-06last_reviewLatest

Policy most recently reviewed (Last review dated 08/06/2026).

Policy Summary

PayerAetna

PolicyLumbar Traction Devices

Policy CodePolicy 0569

Change TypeNo material change

Effective DateNov 9, 2001

Last ReviewJun 10, 2027

Next Review DateJun 10, 2027

Key ActionProvide a completed Standard Written Order (SWO) with required elements to the supplier before claim submission.

SourceLink

On This Page

The policy does not set a formal prior authorization rule in this section, but notes limited clinical evidence for many 510(k)-cleared devices and states that plan rules requiring evidence of medical necessity may imply prior authorization is appropriate.

Step Therapy

Limit supervised mechanical traction to up to 4 sessions/week

When supervised mechanical traction is provided, standard treatment is typically delivered in conjunction with other therapies and is commonly limited to up to 4 sessions per week.

Traction is typically used alongside therapeutic procedures, not as an isolated treatment
Standard supervised mechanical traction: up to 4 sessions per week

Step Therapy

Use traction in the context of conservative therapies and evidence from trials

Consider traction only after or alongside other conservative modalities; systematic reviews and trials described show traction is often evaluated in combination with advice, exercises, medication, electrotherapy, or compared to surgery, with one trial showing added benefit when mechanical traction was added to medication and electrotherapy.

Traction is commonly used with other conservative treatments (advice, exercises)
One trial reported additional benefit when mechanical traction was added to medication and electrotherapy
Advice/exercises and surgery comparisons are discussed in systematic reviews

Documentation Required

Document medical necessity in the member’s medical record (do not rely on supplier attestations)

Medical records must contain sufficient information demonstrating that all applicable coverage criteria are met; supplier-prepared statements or practitioner attestations alone are not sufficient. The SWO does not replace the need for corroborating documentation in the member’s medical record.

Include clinical documentation in the member’s record that supports medical necessity and corroborates any supplier statement or attestation
Supplier records or documents from parties with financial interest are not sufficient by themselves

Documentation Required

For newer devices, supply diagnosis, prior conservative therapy, sessions, and objective outcomes

For newer devices (for example, lumbar exoskeletons), include diagnosis, documentation of prior conservative therapy, number of treatment sessions, and objective outcome measures (e.g., VAS, ODI, ROM) in the medical record to support medical necessity and to reflect evidence discussed in trials.

Document the diagnosis (e.g., lumbar disc herniation)
Record prior conservative therapies attempted
Record number and dates of treatment sessions and concurrent therapies
Include objective outcome measures such as Visual Analogue Scale (VAS), Oswestry Disability Index (ODI), and lumbar range of motion (ROM)

Denial Risk

Do not bill until supplier has received the completed SWO — failure leads to denial

Claims will be denied as not medically necessary if the supplier bills for an item addressed in this policy without first receiving a completed SWO that contains the required elements listed in the policy.

Denial Risk

Devices cleared by 510(k) lacking high-quality efficacy evidence risk denial

Many spinal unloading and related devices were cleared via FDA 510(k) and lack high-quality evidence of clinical effectiveness; absence of such evidence and lack of documented medical necessity may lead to noncoverage or denial of claims.

Spinal unloading devices were cleared via 510(k) premarket notification (no premarket approval evidence required)
Lack of well-designed controlled clinical studies demonstrating reductions in pain and disability may result in noncoverage or denials

Devices intended to provide a traction-like effect by shifting weight-bearing off the lower back onto the hips to reduce lumbar spine pressure.

Mechanisms / examplesSome devices use gravitational force (e.g., LTX 3000); others use applied pneumatic pressure (e.g., Orthotrac Pneumatic Vest, Saunders STx, Saunders Lumbar HomeTrac Deluxe).

Regulatory noteMany spinal unloading devices were cleared via FDA 510(k) premarket notification, so premarket effectiveness evidence is limited.

Evidence summaryBiomechanical and physiologic studies (EMG, spinal curvature) exist, but clinical outcome evidence demonstrating reduced pain/disability or improved function is lacking.

Spinal unloading devices (alternate descriptor)

Alternate descriptorDevices that produce a traction-like effect to off-load the lumbar spine by shifting weight-bearing to the hips using gravitational force or applied pneumatic pressure.

Examples by mechanismGravity-dependent: LTX 3000; Pneumatic systems: Orthotrac Pneumatic Vest, Saunders STx and HomeTrac devices.

Clinical implicationAlthough designed to decompress the lumbar spine, clinical evidence for meaningful patient outcome improvements is limited and inconclusive.

DDS 500 Lumbar Traction — device description

Device descriptionManufacturer-described device using a patented spinal air-traction design with vertically expandable columns to provide spinal decompression and support between the lower rib cage and upper hip.

Functional featuresProvides traction and support (not just support), converts to a soft lumbar support orthosis (LSO) and offers flexibility via vertically expandable columns.

Intended effectCreates weight-bearing forces away from the lower back to reduce pressure in the lumbar spine (spinal decompression).

Lordotic curve-controlled traction (L-LCCT)

Approach / device conceptLordotic curve-controlled traction (L-LCCT) is a traction approach and device designed to maintain the lumbar lordotic curve during traction to address technical limitations of traditional linear traction.

Example deviceKinetrac-9900 (L-LCCT) was evaluated against traditional traction in patients with lumbar intervertebral disc disease.

Study findingsIn a randomized study (n=40), both L-LCCT and traditional traction reduced pain, but only the L-LCCT group showed significant improvements in functional scores and morphological disc changes.

Lumbar exoskeleton device

Device conceptPortable lumbar exoskeleton devices that combine traction, range-of-motion (ROM) exercises, and resistance training into a single system as an alternative to traditional traction plus rehabilitation.

Clinical evidenceA randomized, non-inferiority, multicenter trial (118 patients with lumbar disc herniation) found the exoskeleton device to have comparable safety and effectiveness to traditional traction plus rehabilitation after 10 treatment sessions.

Intended advantagesMay reduce treatment complexity by integrating multiple therapeutic elements and offer a promising alternative for conservative LDH treatment.