Having your Hearing Aids and Audiological Devices denied by insurance is frustrating, but you have legal rights and a strong path to overturn the denial. Approximately 40-60% of insurance denials are overturned on appeal when patients submit comprehensive documentation and cite applicable laws. This guide walks you through exactly why hearing aids claims get denied, what medical necessity criteria major insurers apply, and how to build the strongest possible appeal.
Important Disclaimer
This guide is for informational purposes only and does not constitute legal or medical advice. Insurance coverage rules vary by plan type, state, and individual circumstances. Consult with a patient advocate, healthcare attorney, or your state Department of Insurance for advice specific to your situation. Information current as of 2026-03-28.
Why Hearing Aids Gets Denied by Insurance
Hearing Aids denials typically fall into specific, predictable patterns. Understanding the exact reason for your denial is the first step to building an effective appeal. The most common denial reasons for Hearing Aids and Audiological Devices include:
- Reason 1: Plan explicitly excludes hearing aids from covered benefits
- Reason 2: Hearing loss does not meet the insurer's severity threshold for coverage
- Reason 3: The specific device model or technology level is not on the approved list
- Reason 4: State mandate does not apply to the patient's plan type (ERISA exemption)
- Reason 5: Replacement requested before the insurer's minimum replacement interval (typically 3-5 years)
Your Explanation of Benefits (EOB) or denial letter should include a specific reason code. Match that code to the reasons above to target your appeal effectively. If the denial letter is vague, you have the legal right to request the specific clinical criteria used to evaluate your claim.
Common Denial Codes for Hearing Aids
Insurance companies use standardized codes to explain denials. Here are the codes most frequently associated with hearing aids denials:
| Denial Code | What It Means |
|---|---|
| CO-96 | Non-covered charge — excluded benefit |
| CO-50 | Not medically necessary |
| CO-119 | Benefit maximum reached |
| CO-27 | Equipment model not approved |
Understanding your specific denial code helps you tailor your appeal to address the exact basis for denial rather than making generic arguments. Request your complete claims file if the denial codes are not clear from your EOB. Use our EOB Decoder tool to understand your denial documentation.
Medical Necessity Criteria for Hearing Aids
Hearing aid coverage has expanded significantly. Over 30 states now mandate hearing aid coverage for children, and a growing number mandate adult coverage. Federal employees have hearing aid coverage through FEHB. The ACA requires hearing screening for newborns. OTC hearing aids became available in 2022, but prescription devices remain necessary for moderate-to-severe hearing loss. Medicare currently does not cover hearing aids, though Medicare Advantage plans may include hearing benefits. Major commercial insurers increasingly cover hearing aids, often with a dollar cap per device and a replacement interval of 3-5 years.
Key Takeaway
Each insurer applies different medical necessity criteria for hearing aids. Request your specific insurer's medical policy for this procedure. The criteria they use must be disclosed to you upon request, and your appeal should address each criterion point by point.
Step-by-Step Appeal Process for Hearing Aids
Step 1: Request the Complete Written Denial
Contact your insurer and request the full written denial including the specific clinical criteria used, the reviewer's credentials, and your appeal rights and deadlines. Under ACA Section 2719, you are entitled to this information. Keep a log of every communication with your insurer — dates, names, reference numbers.
Step 2: Obtain Your Complete Medical Records
Request all records relevant to your hearing aids claim from every provider involved. Under HIPAA, you are entitled to your complete medical records. Focus on documentation that directly addresses the denial reason.
Step 3: Get a Letter of Medical Necessity from Your Provider
Ask your treating physician to write a detailed letter explaining exactly why Hearing Aids and Audiological Devices is medically necessary for your specific condition. The letter should reference the insurer's specific medical policy criteria and address each requirement. A generic letter is far less effective than one that directly responds to the denial reason.
Step 4: Gather Supporting Clinical Evidence
Collect clinical practice guidelines from relevant medical societies, peer-reviewed research supporting the procedure for your diagnosis, and any applicable insurer-specific policy bulletins. Evidence from the same clinical guidelines the insurer references is particularly powerful.
Step 5: Write and Submit Your Appeal
Your appeal should cite specific laws (ACA Section 2719, ERISA Section 503 if applicable, and relevant state laws), address the exact denial reason with point-by-point rebuttal, include all supporting documentation, and request a specific outcome (approval of the denied service). Submit by certified mail or through the insurer's online portal with delivery confirmation.
Step 6: If Denied, Escalate to External Review
If your internal appeal is denied, you have the right to an external review by an Independent Review Organization (IRO) under the ACA. The external reviewer is independent of the insurer and makes a binding determination. External review must be requested within 4 months of the internal appeal denial in most states. For urgent situations, expedited external review must be decided within 72 hours.
Sample Appeal Letter Language for Hearing Aids
Sample Appeal Excerpt
I appeal the denial of hearing aids for [bilateral/unilateral] hearing loss, claim [X]. Audiological evaluation dated [date] demonstrates [type and degree of hearing loss: moderate sensorineural hearing loss with pure tone average of X dB HL]. The patient experiences [specific functional impairments: difficulty understanding speech in noise, inability to hear alarms, safety concerns, workplace communication difficulties]. Under [state] Insurance Code Section [X], hearing aid coverage is mandated for [qualifying population]. The prescribed devices at the [technology level] are the minimum level required to address the patient's specific hearing profile and communication needs as determined by the audiologist.
Customize this language with your specific details — claim numbers, dates, provider names, and clinical findings. A personalized appeal that addresses the specific denial reason is significantly more effective than a generic template. Use our free appeal letter generator to build a complete letter.
Supporting Documentation to Strengthen Your Appeal
For hearing aids appeals, gather the following documentation before submitting:
- Complete audiological evaluation with audiogram
- Speech recognition testing results
- Audiologist's recommendation specifying device type and technology level rationale
- Documentation of functional impairment from hearing loss
- State mandate documentation if applicable
- Physician referral or ENT evaluation to rule out medically treatable causes
Organize your documentation clearly with a cover page listing all enclosed items. Number each exhibit and reference them specifically in your appeal letter. Incomplete or disorganized submissions are easier for insurers to deny.
Success Rate and Tips for Hearing Aids Appeals
While specific success rates vary by insurer and clinical scenario, data from state insurance regulators suggests that 40-60% of medical necessity denials are overturned when patients pursue a comprehensive appeal. For hearing aids specifically, the following strategies may improve your chances:
- Check your state's hearing aid mandate — coverage requirements vary for children vs. adults
- Document functional impairment beyond hearing test results (workplace difficulties, safety concerns)
- If the technology level is denied, have the audiologist explain why a lower-level device is inadequate
- For children, cite both state mandates and the ACA pediatric essential health benefit
The single most important factor in appeal success is the quality and specificity of your documentation. Generic appeals fail. Appeals that address the exact denial reason with targeted clinical evidence succeed at much higher rates.
Check your appeal deadline to ensure you file within the required timeframe. Missing the deadline may forfeit your appeal rights entirely.
Frequently Asked Questions
Does insurance cover hearing aids?
Coverage varies by plan, state, and age group. Over 30 states mandate hearing aid coverage for children, and an increasing number mandate adult coverage. Commercial insurance plans increasingly offer hearing aid benefits, often with a per-device dollar cap ($1,000-$3,000 per ear). Medicare does not cover hearing aids, though Medicare Advantage plans may offer hearing benefits. Check your state's mandate and your specific plan documents.
Which states require hearing aid coverage?
States mandating hearing aid coverage for children include nearly all states. States mandating adult hearing aid coverage include Arkansas, Colorado, Connecticut, Delaware, Illinois, Maine, Maryland, Massachusetts, Minnesota, New Hampshire, New Jersey, New Mexico, Oregon, Rhode Island, and others, with the list expanding. Requirements vary — some mandate full coverage while others set dollar limits. Self-insured ERISA plans are generally exempt from state mandates.
Can I appeal if my plan excludes hearing aids?
If your plan explicitly excludes hearing aids and is not subject to a state mandate (either because your state lacks a mandate or because the plan is self-insured), the appeal path is limited. However, you may argue that hearing loss treatment should be covered as a medical condition, that hearing devices are necessary medical equipment, or that the exclusion discriminates against people with disabilities. The ACA requires pediatric hearing screening and may support coverage arguments for children.
How often can I get new hearing aids through insurance?
Most insurers that cover hearing aids allow replacement every 3-5 years. If you need replacement sooner due to device failure, significant hearing change, or damage, appeal by documenting the reason for early replacement with audiological evidence. Technology advancement alone is typically not sufficient justification for early replacement. Some plans cover repairs and adjustments between replacement cycles.
Are cochlear implants covered differently than hearing aids?
Yes. Cochlear implants are classified as prosthetic devices, not hearing aids, and are covered by Medicare and most commercial insurers when severe-to-profound hearing loss is documented and hearing aids do not provide adequate benefit. Cochlear implant coverage is generally more robust than hearing aid coverage because of the prosthetic device classification. If you have severe hearing loss and hearing aids are denied, ask your audiologist whether cochlear implant candidacy evaluation is appropriate.
Sources: ACA Section 2719 · ERISA Section 503 · No Surprises Act · CMS regulations · State insurance codes · Clinical practice guidelines. Disclaimer: This article is for informational purposes only. Coverage rules vary by plan type and state. Consult a patient advocate or healthcare attorney for advice specific to your situation. Last updated: 2026-03-28.