Does E0492 require prior authorization?

Yes, E0492 requires prior authorization (high confidence). Code explicitly requires prior authorization.

`E0492`, Power source and control electronics unit for oral device/appliance for

HCPCS/CPT

Prior Auth Required

Code explicitly requires prior authorization (high confidence)

For BIPAP/related devices coverage for nocturnal hypoventilation/restrictive thoracic disorders: documentation of qualifying diagnosis codes (G47.34, G47.36, G70.*, J40-J44, M95.4, Q67.8) and clinical documentation that CPAP is intolerant or ineffective
General implication: sleep study results (in-lab polysomnography or appropriately conducted home sleep test meeting device channel requirements) and relevant clinical notes documenting symptoms, prior CPAP trial/intolerance, and comorbid conditions/tests (blood pressure, Epworth, MSLT) are required as part of selection criteria (these specific documentation elements are referenced in the policy text)
For CPAP and PAP device/accessory claims: documentation of device prescription, indication (diagnosis and AHI/comorbidity/symptom documentation as required), and any documentation of prior trials/education or reasons for intolerance where alternative devices are requested.

Removable oral appliances are proven and medically necessary for treating obstructive sleep apnea (OSA) when a sleep study confirms diagnosis and prior evaluation has occurred.
Continuous Positive Airway Pressure (CPAP) devices and accessories — HCPCS E0601 and listed masks/interfaces/accessories (A7027–A7046, A7037–A7039, E0561–E0562, etc.) covered for obstructive sleep apnea (G47.33) when selection criteria are met (AHI thresholds specified).
CPAP coverage with AHI ≥15 for OSA (G47.33) — CPAP is covered when selection criteria (AHI ≥15) are met.
CPAP coverage with AHI 5–14 for OSA when specified comorbid conditions (see list above) or excessive sleepiness criteria are present — CPAP covered when selection criteria met.
AutoPAP/APAP and pressure-relief technologies (e.g., C-Flex) — covered under applicable HCPCS when selection criteria for CPAP/APAP are met.
Bi-level PAP and respiratory assist devices (E0470, E0472) — covered for OSA members intolerant of CPAP or when CPAP/AutoPAP is ineffective; covered for diagnoses with nocturnal hypoventilation (G47.34, G47.36) and for restrictive thoracic and chronic lower respiratory disease diagnoses (G70.*, J40–J44, M95.4, Q67.8) when selection criteria are met.

HUMANA-FUNCTIONAL-ELECTRICAL-STIMULATORS-NON-PAIN-MA, Functional Electrical Stimulators (Non-Pain)

UHC-POL-obstructive-sleep-apnea-treatment, Obstructive and Central Sleep Apnea Treatment

AETNA-CPB-0004, Obstructive Sleep Apnea in Adults

BCBSIL-MED204.006, Medical Management of Sleep Related Breathing Disorders

BCBSMT-MED204.006

Ask Verity about documentation requirements, denial risks, or coverage in your state.