Endolymphatic Hydrops (Meniere's Disease) Tests (CPB 0571, reviewed 2026-09-01)
Aetna considers dehydration testing with glycerol, urea, or other osmotic diuretics medically necessary to verify suspected endolymphatic hydrops (Meniere's disease) only in members with atypical presentations of the disease, and considers it experimental, investigational, or unproven for other indications. Aetna considers the following experimental, investigational, or unproven: endolymphatic sac immunohistochemistry of aquaporin-2, V2R, NKCC2 and TRPV4; genetic testing of KCNE1, KCNE3, SIK1, SLC8A1 and SLC26A4 for this diagnosis; intravenous gadolinium inner ear MRI; multi-frequency tympanometry; testing for antibodies against inner ear antigens; vestibular evoked myogenic potential (VEMP) testing for diagnosis and for monitoring disease progression; and the video head impulse test. The policy lists CPT codes 81406, 92517, 92518, 92519, 92550, 92567 and 92584 and HCPCS code A9579 as not covered for the indications listed, and ICD-10 codes for Meniere's disease, related vertigo, labyrinthitis, gait abnormalities and dizziness are covered if selection criteria are met.