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Medicare (Traditional Part A & B) · restorative neurostimulation

v1verified 2026-07-24needs re-verification

✓ conditional · medicare rn

Criteria checklist

0 of 7 ticked
Indications
  • enumerated: yes
  • covered:
      • name: Chronic mechanical low back pain from lumbar multifidus dysfunction
      • criteria:
        • chronic lbp min months: 6
        • etiology: mechanical/nociceptive LBP with multifidus dysfunction (ICD-10 M62.85); e.g., positive prone instability test
        • conservative care failed: >=90 days refractory to medical management incl. physical therapy
        • no radicular pain: yes
        • no prior lumbar surgery: yes
        • severity: moderate-to-severe pain/disability (e.g., VAS/ODI thresholds per ISASS)
  • investigational:
    • current radicular pain / radiculopathy
    • prior lumbar spine surgery
    • another dominant pain generator (e.g., stenosis, fracture, malignancy, infection)
    • non-mechanical / inflammatory back pain
Documented pathology (objective basis)required
Conservative care
  • required: yes
  • min duration months: 3
  • satisfied by:
    • tried and failed >=90 days
    • contraindicated
  • modalities named:
    • physical therapy
    • pharmacologic
    • activity modification
Trial
  • required: no
  • min duration days: not stated in the policy
  • success criteria: not stated in the policy
  • threshold is binding: no
Psychological evaluation
  • required: no
  • must clear: no
  • note posture: not required
Quantity limits
  • applies: no
Device / waveformnot_applicable
Payor-specific notes

ReActiv8 (Mainstay Medical) restorative neurostimulation stimulates the L2 medial branch to rehabilitate the lumbar multifidus — mechanistically and by indication DISTINCT from pain-masking neurostimulation. No NCD and no IN/KY LCD govern it (WPS/CGS publish nothing), so Traditional Medicare adjudicates under §1862(a)(1)(A) reasonable-and-necessary. The criteria here are the de facto standard from FDA labeling and the ISASS 2025 guideline (chronic mechanical LBP >=6 months from multifidus dysfunction [ICD-10 M62.85], >=90 days failed conservative care, NO radicular pain, NO prior lumbar surgery) — not a binding policy. IMPORTANT: this shares CPT 64555/64590 with generic PNS but is a SEPARATE coverage cell (the documented PNS-vs-ReActiv8 split). Commercial payors frequently deem ReActiv8 investigational — flag when the commercial cells are built. Confirm current MAC posture before clinical use (needs_reverification). Criteria sources: ISASS 2025 guideline (IJSS 19(6):760); Mainstay Medical labeling; ReActiv8 trials.

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Dot phrase

Lean narrative A&P attestation. `***` = fill-in. No NCD/LCD binds in IN/KY — documents to FDA labeling + ISASS 2025 under Medicare's reasonable-and-necessary standard. Distinct from generic PNS.

.REACTIV8MCARE
.REACTIV8MCARE

Assessment: *** — chronic mechanical low back pain present >=6 months arising from lumbar
multifidus dysfunction (ICD-10 M62.85), supported by *** (e.g., positive prone instability
test / imaging). There is no radicular pain, no prior lumbar spine surgery, and no other
dominant pain generator.

Medical necessity under Medicare's reasonable-and-necessary standard (no NCD or LCD binds;
documented to FDA labeling and the ISASS 2025 restorative-neurostimulation criteria):
conservative and medical management has been tried and has failed over >=90 days — physical
therapy, pharmacologic therapy, and activity modification: *** . Pain and disability are at
threshold (VAS/ODI ***), and the etiology is mechanical (nociceptive). Alternative pain
generators — stenosis, fracture, malignancy, infection, and inflammatory disease — are
excluded.

Plan: Implantation of the ReActiv8 restorative neurostimulation system (bilateral L2 medial
branch leads 64555 x2 plus generator 64590). Risks, benefits, and alternatives discussed;
consent obtained.

Where this payor diverges from the Medicare baseline

  • diagnosis line (multifidus dysfunction)
  • exclusions (radicular/prior surgery)
  • no trial / no psych eval

Cautions

  • No externalized trial and no psychological evaluation apply. Bills the same codes as generic PNS but is a separate coverage cell. Regenerate if `medicare-in-ky-reactiv8.md` `version` advances.

Prior-auth pathway

  • required: no
  • verified: no
  • note: Not on the OPD prior-auth list (that list = implanted SPINAL neurostimulators). Confirm if hospital-outpatient.

Provenance

  • authority:
    • type: none
    • id: not stated in the policy
    • title: No NCD or IN/KY LCD; coverage adjudicated case-by-case under SSA §1862(a)(1)(A) (reasonable and necessary) by the local MAC
    • applies because: No NCD for restorative neurostimulation; WPS (J8) and CGS (J15) publish no LCD (CMS MCD 'restorative neurostimulation' search = 0, verified 2026-06-28)
    • peer lcds:
    • source: https://www.ijssurgery.com/content/19/6/760
    • effective: — · payor last reviewed: — · we verified: 2026-07-24 · v1

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    Change history

    • 2026-07-24reactiv8/medicare: verified via MCP - still no restorative-neurostim LCD anywhere; R&N posture unchanged; last_verified 2026-07-24 7b1da3de18
    • 2026-06-28Add ReActiv8 restorative neurostimulation x Medicare IN/KY cell (R&N) 582dbd4f48