Intervertebral Disc Prostheses — CPB 0591 | AETNA Coverage Update

TL;DR: Aetna modified CPB 0591 governing intervertebral disc prostheses coverage policy, effective January 16, 2026. If your team bills CPT 22856, 22857, 22858, 22861, 22862, 22864, or 22865 for disc arthroplasty procedures, check your patient eligibility against the updated criteria before submitting claims.

Aetna's updated intervertebral disc arthroplasty coverage policy tightens the device-specific and age-based criteria that determine medical necessity for both cervical and lumbar disc replacement. The policy governs which FDA-approved prosthetic devices qualify at one versus two contiguous levels, which age brackets apply to each device brand, and which clinical findings support authorization. Billing teams that don't map their patient population to these device-level rules will see claim denials pile up fast.

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Quick-Reference Table

Field	Detail Copy
Payer	Aetna, a CVS Health company
Policy	Intervertebral Disc Prostheses
Policy Code	CPB 0591
Change Type	Modified
Effective Date	January 16, 2026
Impact Level	High
Specialties Affected	Orthopedic Surgery, Neurosurgery, Spine Surgery, Interventional Pain, Physical Medicine & Rehabilitation
Key Action	Audit all pending and scheduled disc arthroplasty cases against device-specific age criteria before submitting claims under CPT 22856–22865

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Aetna Intervertebral Disc Arthroplasty Coverage Criteria and Medical Necessity Requirements 2026

Single-level cervical disc arthroplasty is billed under CPT 22856. For two-level (contiguous) procedures, CPT 22858 is added as an add-on code for the second interspace. But the coverage is not blanket. Every approval path runs through a specific FDA-approved device brand, a specific age window, and a six-part clinical checklist.

Here's the real issue: Aetna ties medical necessity determinations to the device name, not just the procedure code. Billing the right CPT code with the wrong device—or a patient outside the approved age range for that device—is a straight path to denial.

Device-Specific Age Criteria for Single-Level Cervical Arthroplasty (C3–C7)

For single-level replacement, each device carries its own age requirement:

These aren't soft guidelines. A 62-year-old patient who needs a ProDisc-C falls outside the covered criteria. That claim will be denied without an exception documented in advance.

Device-Specific Age Criteria for Two-Level Cervical Arthroplasty

Two-level replacement is more restricted. Only four devices qualify:

If your surgeon is planning a two-level procedure with a device not on this list—say, the Bryan Cervical Disc or Secure-C—Aetna will not cover it regardless of the clinical picture. That conversation needs to happen before the OR is booked, not after the claim drops.

The Six-Part Clinical Checklist

Beyond the device and age criteria, all cervical disc arthroplasty cases must clear six clinical hurdles:

The conservative therapy requirement is strict. Virtual physical therapy does not satisfy it. Home PT does not satisfy it. Document in-person active PT or document why a waiver applies—otherwise prior authorization will be denied.

Sequential and Contiguous Level Coverage

Aetna also covers two additional scenarios when criteria are met: placement of a second artificial cervical disc contiguous to a previously placed disc, and concurrent or sequential artificial cervical disc replacement with adjacent level fusion. These require the same medical necessity documentation as the primary procedure.

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Aetna Intervertebral Disc Arthroplasty Exclusions and Non-Covered Indications

Aetna considers artificial cervical disc replacement experimental, investigational, or unproven when the new request would result in more than two contiguous disc replacement levels from C3 to C7. Full stop.

Three levels. That's the ceiling. If your surgeon is planning a three-level artificial disc procedure, it will not be covered under this policy. No prior authorization path exists for that indication under CPB 0591. The clinical documentation won't matter. Redirect those cases toward fusion or have a very direct conversation with the surgeon and patient about out-of-pocket exposure before scheduling.

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Coverage Indications at a Glance

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Aetna Intervertebral Disc Arthroplasty Billing Guidelines and Action Items 2026

This policy took effect January 16, 2026. If you haven't audited your pending spine cases yet, do it today. Here's what your billing and authorization teams should do right now.

Copy Action Items

If you're managing a high volume of spine cases or working through a transition period on pending authorizations, loop in your compliance officer to review any claims that straddle the January 16, 2026 effective date.

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CPT, HCPCS, and ICD-10 Codes for Intervertebral Disc Prostheses Under CPB 0591

Covered CPT Codes (When Selection Criteria Are Met)

Other CPT Codes Related to CPB 0591

These codes support the diagnostic workup and conservative therapy requirements documented in the policy. They are not disc arthroplasty procedure codes, but they appear in the CPB and support medical necessity documentation for reimbursement purposes.

The full CPB 0591 code list includes 543 CPT codes. The codes above represent the primary arthroplasty procedure codes, related add-on codes, and the diagnostic imaging and therapy codes explicitly listed in the policy. View the complete code list at app.payerpolicy.org/p/aetna/0591.

Note: No ICD-10-CM codes were listed in the policy data provided. The policy document references degenerative disc disease and herniated disc as primary diagnoses, but no ICD-10 codes are enumerated in CPB 0591's current code table.

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