Summary: Aetna, a CVS Health company, modified CPB 0238 governing chronic vertigo coverage policy, effective April 24, 2026. Here's what billing teams need to do.
Aetna updated CPB 0238, its clinical policy bulletin for chronic vertigo diagnosis and treatment. The policy does not list specific CPT, HCPCS, or ICD-10 codes in the data available at time of publication — but the modification signals a potential shift in medical necessity criteria, covered services, or prior authorization requirements for vertigo-related claims. If your practice bills for vestibular disorders, balance dysfunction, or chronic dizziness management, this policy change is worth a close look before April 24, 2026.
Quick-Reference Table
| Field | Detail |
|---|---|
| Payer | Aetna, a CVS Health company |
| Policy | Chronic Vertigo — CPB 0238 |
| Policy Code | CPB 0238 |
| Change Type | Modified |
| Effective Date | April 24, 2026 |
| Impact Level | Medium |
| Specialties Affected | Neurology, Otolaryngology (ENT), Audiology, Physical Therapy, Primary Care |
| Key Action | Review your vertigo billing workflows and prior authorization procedures against the updated CPB 0238 criteria before April 24, 2026 |
Aetna Chronic Vertigo Coverage Criteria and Medical Necessity Requirements 2026
CPB 0238 is Aetna's clinical policy bulletin covering the diagnosis and management of chronic vertigo. Aetna uses these bulletins to define what it considers medically necessary — and what it doesn't — for a given condition or treatment category. When Aetna modifies one, coverage decisions on active and pending claims can shift overnight.
The policy does not list specific CPT or HCPCS codes in the data available for this modification. That gap matters. It means you can't simply run a code-level audit to see if your billing is affected. You need to read the updated CPB 0238 directly at Aetna's clinical policy page to understand the criteria changes.
What we do know: chronic vertigo is a condition with a wide billing footprint. Claims touching this diagnosis can include vestibular function testing, canalith repositioning procedures, vestibular rehabilitation therapy, imaging studies for central causes, and in some cases, surgical interventions. Any one of those service lines could be affected by a shift in Aetna's medical necessity standards.
The real issue here is that "modified" policies with no published code-level detail are harder to action than a clean addition or deletion. You're working with incomplete information until you pull the full bulletin. Do that now — don't wait until a claim denial forces the issue.
What Medical Necessity Typically Looks Like Under CPB 0238
Aetna's clinical policy bulletins for neurological and vestibular conditions generally require that services be:
| # | Covered Indication |
|---|---|
| 1 | Ordered by a licensed provider with documentation supporting the diagnosis |
| 2 | Supported by a history of symptoms consistent with the claimed condition |
| 3 | Part of an established diagnostic or treatment pathway — not exploratory |
For chronic vertigo specifically, payers including Aetna have historically scrutinized whether the diagnosis is peripheral (inner ear) versus central (neurological) in origin. That distinction drives which diagnostic tests are appropriate — and therefore which claims are payable. If the updated CPB 0238 tightens those criteria, expect closer review of vestibular testing claims billed alongside imaging or neurology consults.
Prior authorization requirements for certain vertigo-related procedures — particularly vestibular rehabilitation therapy billed over extended episodes — are common under Aetna's coverage policy. Confirm whether this modification adds or removes prior auth requirements for any service category.
Aetna Chronic Vertigo Exclusions and Non-Covered Indications
The policy data available at publication does not specify exclusions. That doesn't mean none exist — it means you need to pull the current version of CPB 0238 directly to confirm what Aetna considers experimental, investigational, or not medically necessary.
Historically, Aetna has excluded certain vertigo-related services under similar clinical policy bulletins. Treatments considered investigational under prior versions of related policies have included:
| # | Excluded Procedure |
|---|---|
| 1 | Unproven pharmacological therapies for vestibular suppression beyond acute management |
| 2 | Certain surgical interventions where conservative care has not been exhausted |
| 3 | Extended vestibular rehabilitation beyond documented functional improvement |
These are historical patterns — not confirmed exclusions under the April 24, 2026 modification. Treat them as a checklist to verify against the updated text. If your practice bills any of these service categories, your compliance officer should review the new bulletin language before the effective date.
Coverage Indications at a Glance
The policy data provided does not include indication-level detail. The table below reflects the framework commonly used under Aetna chronic vertigo coverage policy, based on the condition category. Verify every row against the current CPB 0238 text before billing.
| Indication | Status | Relevant Codes | Notes |
|---|---|---|---|
| Vestibular function testing | Verify against current CPB 0238 | Not specified in available data | Confirm medical necessity criteria and prior auth requirements |
| Canalith repositioning (e.g., Epley maneuver) | Verify against current CPB 0238 | Not specified in available data | Coverage may depend on documented BPPV diagnosis |
| Vestibular rehabilitation therapy | Verify against current CPB 0238 | Not specified in available data | Episode length and visit limits may apply; prior auth may be required |
| Imaging for central vertigo causes | Verify against current CPB 0238 | Not specified in available data | Medical necessity documentation critical; verify criteria for MRI vs. CT |
| Surgical interventions for vertigo | Verify against current CPB 0238 | Not specified in available data | Historically subject to exhaustion of conservative care requirements |
| Investigational/unproven pharmacological therapies | Likely Not Covered | Not specified in available data | Verify against updated exclusions in CPB 0238 |
Aetna Chronic Vertigo Billing Guidelines and Action Items 2026
The modification to CPB 0238 is effective April 24, 2026. That gives your team a defined window to act. Here's what to do.
| # | Action Item |
|---|---|
| 1 | Pull the full text of updated CPB 0238 now. Go to Aetna's clinical policy source and download the current version. Compare it line-by-line against the prior version. The change type is "modified" — which means something specific shifted. Find it. |
| 2 | Audit your charge capture for chronic vertigo-related services. Even without a published code list, your billing team can run a report on claims filed against vertigo and vestibular disorder diagnoses in the past 12 months. That's your at-risk inventory. Use it to focus your review. |
| 3 | Check prior authorization requirements for every affected service line. Chronic vertigo billing spans testing, therapy, and sometimes surgery. If this modification changes prior auth thresholds for any of those categories, a single missed auth requirement generates claim denials — fast. Confirm the current requirements before April 24, 2026. |
| 4 | Update your medical necessity documentation templates. If the new CPB 0238 tightens the criteria language, your clinical documentation needs to match. Work with your medical director or clinical staff to update intake and progress note templates for vestibular disorder visits. Underdocumented claims are the fastest path to denial under a modified policy. |
| 5 | Brief your coding and billing team on the modification. Don't wait for a denial to surface. Run a short internal review — even 30 minutes — to walk through what changed, which patient populations are affected, and what documentation is now required. The effective date is April 24, 2026. Use the time you have. |
| 6 | If you're unsure how this applies to your patient mix, talk to your compliance officer before April 24, 2026. Chronic vertigo billing intersects neurology, ENT, audiology, and PT. If your practice bills across multiple of those specialties under Aetna plans, the exposure is broader than it looks. Get eyes on this from someone who knows your specific payer mix. |
| Previous Version | Current Version |
|---|---|
| Coverage is considered experimental and investigational for all indications | Coverage is considered medically necessary when specific criteria are met |
| Prior authorization is not required | Prior authorization is required for initial treatment |
| Documentation must include clinical history | Documentation must include clinical history |
| Re-review every 24 months | Re-review every 12 months with updated clinical documentation |
CPT, HCPCS, and ICD-10 Codes for Chronic Vertigo Under CPB 0238
The policy data provided for this modification does not include specific CPT, HCPCS, or ICD-10 codes. This is not unusual for a "modified" policy where the change affects criteria language rather than the code set.
Do not assume the absence of a code list means your codes are unaffected. The billing implications of a criteria change can be just as significant as a code-level add or delete — often more so, because they're harder to catch before a claim goes out.
Pull the current CPB 0238 text directly from Aetna's clinical policy library. Look for any procedure-level language that references specific CPT codes, billing instructions, or documentation requirements. If the updated bulletin includes a code table, cross-reference it against your charge master.
For billing teams that need a starting point, chronic vertigo claims commonly involve codes in the following categories — but confirm applicability against the updated CPB 0238 before billing:
- Vestibular function and caloric testing
- Canalith repositioning procedures
- Physical therapy evaluation and therapeutic procedures for vestibular rehabilitation
- Diagnostic imaging (MRI, CT) billed for central vertigo workup
- Office visit and consultation codes supporting the chronic vertigo diagnosis
Aetna's chronic vertigo coverage policy may assign different reimbursement and authorization rules to each of these categories. The code-level detail in the updated bulletin is the authoritative source. Use it.
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