Endolymphatic Hydrops (Meniere's Disease) Tests — CPB 0571 | AETNA Coverage Update

Aetna modified CPB 0571 for endolymphatic hydrops (Meniere's disease) diagnostic testing, effective December 4, 2025. Here's what billing teams need to do.

Aetna, a CVS Health company updated its Meniere's disease testing coverage policy under CPB 0571 Aetna system, affecting CPT codes 92517, 92518, 92519, 92550, 92567, 92584, and 81406, as well as HCPCS code A9579. The policy draws a hard line: dehydration testing with osmotic diuretics is medically necessary only for atypical presentations. Seven other diagnostic approaches — including VEMP testing, genetic testing, and intravenous gadolinium MRI — are classified as experimental, investigational, or unproven across the board.

If your ENT, audiology, or otolaryngology billing team is running these tests routinely on Aetna members, this coverage policy change has real claim denial risk attached to it.

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Quick-Reference Table

Field	Detail Copy
Payer	Aetna, a CVS Health company
Policy	Endolymphatic Hydrops (Meniere's Disease) Tests
Policy Code	CPB 0571
Change Type	Modified
Effective Date	December 4, 2025
Impact Level	High
Specialties Affected	Otolaryngology, Audiology, ENT, Neurotology
Key Action	Audit active orders for CPT 92517–92519, 92550, 92567, and A9579 against Aetna members before billing

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Aetna Meniere's Disease Testing Coverage Criteria and Medical Necessity Requirements 2025

The core of this Aetna Meniere's disease testing coverage policy is narrow. Aetna covers dehydration testing — using glycerol, urea, or other osmotic diuretics — only when a member presents with an atypical picture of endolymphatic hydrops. That's the entire covered category.

If the presentation is typical, dehydration testing doesn't meet medical necessity under this policy. Aetna treats it as experimental for all other indications. Document the atypical presentation clearly in the medical record before submitting any claim.

Electrocochleography (CPT 92584) is addressed separately under CPB 0564. If your team bills 92584 for Meniere's disease, look there — not here — for Aetna's medical necessity criteria. Don't assume CPB 0571 covers it.

There's no mention of prior authorization requirements specific to the diagnostic tests in this policy. That said, if you're billing for procedures that fall in a gray zone — especially where atypical presentation is the only path to coverage — check Aetna's prior auth requirements for the specific plan type before the encounter. Prior auth decisions and medical necessity determinations are two different gates.

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Aetna Meniere's Disease Testing Exclusions and Non-Covered Indications

This is where the policy does the most damage to billing teams who haven't read it carefully. Seven categories are explicitly experimental, investigational, or unproven. None of them carry any coverage pathway under CPB 0571.

Vestibular evoked myogenic potential (VEMP) testing — CPT 92517 (cervical), 92518 (ocular), and 92519 (cervical and ocular combined) — is off the table for both diagnosis and disease monitoring. It doesn't matter if the clinician ordered it to track progression. Aetna won't cover it.

Multi-frequency tympanometry using CPT 92550 or 92567 is also excluded for Meniere's diagnosis. Standard tympanometry for other indications may still apply under different policies, but not here.

Intravenous gadolinium inner ear MRI — billed with HCPCS A9579 for the contrast agent — is experimental for Meniere's diagnosis. Gadolinium-enhanced inner ear imaging is a growing clinical tool, but Aetna isn't covering it for this indication.

Genetic testing for KCNE1, KCNE3, SIK1, SLC8A1, and SLC26A4 mutations — billed under CPT 81406 — is experimental. Molecular pathology billing for Meniere's diagnosis won't clear Aetna under this policy.

Endolymphatic sac immunohistochemistry testing aquaporin-2, V2R vasopressin receptor, NKCC2, and TRPV4 is also experimental.

Antibody testing against inner ear antigens for diagnosis is excluded.

Video head impulse test carries the same experimental designation.

The real issue here is that several of these tests — VEMP especially — have become routine in audiology and ENT workups for vertigo. Billing teams at practices that run standard Meniere's panels will see denials if they haven't updated their workflows to reflect this coverage policy.

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Coverage Indications at a Glance

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Aetna Meniere's Disease Billing Guidelines and Action Items 2025

Copy Action Items

If you're unsure how this applies to your specific patient mix or payer contracts, loop in your compliance officer before December 4, 2025. The overlap between CPB 0571 and CPB 0564 on electrocochleography is exactly the kind of boundary question that generates denials when teams assume rather than verify.

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CPT, HCPCS, and ICD-10 Codes for Endolymphatic Hydrops Testing Under CPB 0571

Covered CPT Codes (When Medical Necessity Criteria Are Met)

Code	Type	Description Copy
No covered CPT codes assigned separately	—	Dehydration testing has no specific CPT code listed; coverage applies to the osmotic diuretic test procedure when atypical presentation is documented

Not Covered / Experimental CPT Codes

Related Surgical CPT Codes

Code	Type	Description Copy
69805	CPT	Endolymphatic sac operation
69806	CPT	Endolymphatic sac operation

Not Covered HCPCS Codes

Code	Type	Description	Reason Copy
A9579	HCPCS	Injection, gadolinium-based MRI contrast agent, not otherwise specified, per mL	IV gadolinium inner ear MRI experimental for Meniere's diagnosis

Key ICD-10-CM Diagnosis Codes

The full ICD-10-CM list under CPB 0571 includes 123 codes across the H81.x range. Use the most specific laterality and type code available for your claim. Unspecified codes are audit flags — use them only when clinical documentation genuinely doesn't support a more specific code.

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