CPT code 92587 – Otoacoustic emissions, limited

Key takeaways

CPT code 92587 covers limited distortion product OAE testing at 3-6 frequencies, or transient evoked OAE testing, with interpretation and report.

CPT 92588 needs at least 12 distortion product frequencies per ear. A session that tests 7-11 frequencies still bills as 92587.

Medicare covers 92587 under LCD A57434 when medical necessity is documented; newborn screening is separately covered under EPSDT for Medicaid.

One unit of CPT 92587 covers both ears, because audiologic function tests are bilateral by definition. Append modifier 52 when only one ear is tested.

Practice management software like Pabau tracks OAE billing codes, modifier requirements, and prior authorization status across audiology payers.

CPT code 92587: Official descriptor and procedure definition

CPT code 92587 reports a limited otoacoustic emissions (OAE) evaluation with interpretation and report.

It covers distortion product OAE testing at 3-6 frequencies to confirm whether a hearing disorder is present. It also covers transient evoked OAE testing, which carries no frequency count in the descriptor.

The American Medical Association (AMA) descriptor names two routes to the code. The first is “distortion product evoked otoacoustic emissions; limited evaluation (to confirm the presence or absence of hearing disorder, 3-6 frequencies).” The second is “transient evoked otoacoustic emissions, with interpretation and report.” The code sits in the audiologic function tests group, 92550-92597.

Two OAE subtypes fall under 92587. Distortion product OAE (DPOAE) introduces two simultaneous pure tones at different frequencies and measures the distortion product the cochlea generates in response. Transient evoked OAE (TEOAE), also called click-evoked OAE, uses a broad-spectrum click and captures the cochlear response across a wide frequency range. A TEOAE evaluation with interpretation and report always bills as 92587, because 92588 is a distortion product code only.

The frequency count is the billing line. A DPOAE session that tests 1,000, 2,000, 3,000, and 4,000 Hz is 92587. The session only becomes 92588 once at least 12 distinct frequencies are tested in each ear. Repeating a frequency does not count toward that minimum, so a 7-11 frequency session still reports as 92587.

Billing 92587 for a full cochlear map is undercoding. Billing 92588 for fewer than 12 frequencies per ear is overcoding that payers may flag in an audit. An automated pass/fail screen with no professional interpretation is neither code, and reports as 92558 instead.

Related audiology codes: How CPT code 92587 fits in the panel

OAE codes sit within a broader audiology panel that coders frequently bill together. Understanding where 92587 falls prevents bundling errors and helps billers construct complete claim lines. For broader context on medical billing workflows in audiology, the relationship between these codes matters as much as the individual descriptors.

The NCCI (National Correct Coding Initiative) bundling edits govern which of these codes can appear together on a single claim. CMS updates these tables quarterly. Never assume a combination is safe based on prior-year tables. Check the CMS Physician Fee Schedule lookup tool and current NCCI edits before billing any panel combination.

Medicare coverage and reimbursement for CPT code 92587

Medicare covers CPT code 92587 under Local Coverage Determination (LCD) A57434 (Vestibular and Audiologic Function Studies), administered by applicable Medicare Administrative Contractors. Coverage requires documented medical necessity: the record must show a clinical indication for the OAE test, not merely that the equipment was available.

Covered indications typically include evaluation of suspected sensorineural hearing loss, monitoring ototoxicity from medications (aminoglycosides, cisplatin), and follow-up after noise exposure. Cosmetic or elective audiologic testing without a qualifying diagnosis is not covered. Verify the active LCD for your MAC jurisdiction, as LCD criteria can differ between contractors. Solid revenue cycle management practices include checking LCD status before the appointment, not after the claim is submitted.

2026 Medicare fee schedule rates for 92587

Medicare Physician Fee Schedule rates for CPT code 92587 vary by geographic location and place of service. The figures below are approximate national non-facility and facility rates based on published MPFS data. Verify current rates using the CMS MPFS lookup tool for your specific locality.

Commercial payers set their own fee schedules independently of Medicare. Contracted rates typically range from 80% to 150% of the Medicare allowable depending on the payer and the practice’s negotiated contract. Submitting claims through electronic claims via Claim.MD allows real-time eligibility verification before the appointment, reducing post-service coverage surprises on audiology claims.

Modifiers for CPT code 92587

Modifier selection for CPT code 92587 depends on how many ears were tested, who performed and interpreted the test, and whether it was repeated. The code is bilateral by definition, and billing it per ear is a common denial trigger.

Bilateral testing: Can CPT 92587 be billed per ear?

No, because CPT 92587 already includes testing of both ears. Audiologic function tests are bilateral unless the descriptor says otherwise, and the NCCI Policy Manual allows one unit of service for both ears. Modifier 50 and RT/LT line splits do not apply. When only one ear is tested, report one unit with modifier 52.

• Step 1: Record which ears were tested in the OAE report, with separate frequency data for each ear.
• Step 2: Report one unit of 92587 for a bilateral test, with no modifier 50 and no RT/LT lines.
• Step 3: Append modifier 52 when only one ear was tested, and note the reason in the chart.
• Step 4: If a commercial payer’s written policy differs, follow it and keep a copy with the claim.

ICD-10 codes that support medical necessity for 92587

Every 92587 claim needs a diagnosis code that explains why the test was ordered. The codes below are common pairings for OAE testing. Confirm each one against your MAC’s covered-diagnosis list before billing.

Documentation requirements for a 92587 claim

A complete patient record is the foundation of a payable CPT code 92587 claim. Payers and Medicare auditors look for specific documentation elements. Missing any one of them can trigger a post-payment audit or a prospective denial. Practices focused on medical billing compliance build a documentation checklist directly into the OAE workflow.

• Clinical indication: The referring or ordering provider’s reason for the OAE test, tied to a covered ICD-10 code (e.g., H90.3 for bilateral sensorineural hearing loss)
• Ears tested: Whether one ear or both were tested, which decides whether modifier 52 applies
• Equipment and stimulus type: Whether DPOAE or TEOAE was used, and the equipment make and model
• Frequencies or stimulus conditions tested: The DPOAE frequencies tested in each ear (e.g., 1,000, 2,000, 3,000, and 4,000 Hz), or the TEOAE stimulus used. This supports 92587 over 92588
• Response data: Printout or electronic record of the OAE waveforms, signal-to-noise ratios, and pass/refer results
• Interpretation: The audiologist’s written interpretation of the test results, signed and dated
• Ordering provider: Name and NPI of the provider who ordered the test (required for Medicare)
• Place of service: POS code matching the location where testing occurred (POS 11 for office, POS 22 for outpatient hospital)

Generating a complete audiology superbill that captures all these elements at the point of care is far easier than reconstructing the record after a denial. Build the OAE report template to include every field above before the claim goes out.

Common claim denial reasons for CPT 92587 and how to fix them

Denials on CPT code 92587 cluster around a handful of avoidable errors. Sound denial management strategies start with understanding why each denial type occurs. The table below maps the most common denial causes to corrective actions.

Reviewing your electronic remittance advice (ERA) after each claim batch tells you exactly which CARC denial code the payer applied. Match each CARC to the denial types above and address the root cause rather than just resubmitting the same claim. For a full reference on reading denial codes, see the denial codes in medical billing guide.

Prior authorization and payer-specific requirements for CPT 92587

Medicare generally does not require prior authorization for CPT code 92587, but LCD medical necessity criteria must still be met. Commercial payers are less uniform. Aetna, Cigna, UnitedHealthcare, and Blues plans each maintain their own audiology coverage policies, and prior authorization requirements can change with annual contract renewals.

Thorough insurance eligibility verification before the appointment should confirm whether audiology diagnostic services need authorization. Check the patient’s specific plan, not just the payer’s general policy. A patient on a high-deductible Cigna PPO may have different requirements than one on a Cigna HMO.

• Medicare: No prior auth required. LCD A57434 criteria must be met. Documentation of medical necessity must be in the record before billing.
• Medicaid: Requirements vary by state. EPSDT covers OAE testing for children under 21 without prior auth in most states, but adults require state-specific verification.
• Commercial plans: Contact the payer or use the payer portal to check authorization requirements for the specific plan ID, not just the payer name.
• Managed Medicare (Medicare Advantage): Plans may impose stricter prior auth requirements than traditional Medicare. Treat each MA plan as a commercial payer for authorization purposes.

Pediatric and newborn hearing screening billing with CPT code 92587

Otoacoustic emissions testing is central to universal newborn hearing screening (UNHS) programs, and CPT code 92587 covers the interpreted follow-up. Every U.S. state mandates newborn hearing screening before hospital discharge. OAE testing is one of the two approved screening methods, alongside auditory brainstem response (ABR). The American Academy of Pediatrics (AAP) endorses UNHS as standard of care. An automated pass/fail screen with no professional interpretation usually reports as 92558 rather than 92587.

Billing for newborn OAE screening differs from diagnostic billing in one key way: the indication is screening, not diagnosis. For Medicaid patients, the Early and Periodic Screening, Diagnostic, and Treatment (EPSDT) benefit covers OAE screening for children under 21. It does not require a pre-existing diagnosis code. This removes the medical necessity hurdle that applies to adult Medicare claims.

• Newborn inpatient: Bill under the birth admission with the facility claim. Separate professional billing for the audiologist depends on whether the audiologist is employed by the hospital or independent.
• Outpatient follow-up after a refer result: Bill 92587 for a TEOAE or a DPOAE below 12 frequencies per ear. Bill 92588 for a DPOAE cochlear map of 12 or more frequencies per ear. Pair either with a diagnostic ICD-10 code for the refer result, such as P09.6 for abnormal neonatal hearing screening findings.
• Pediatric Medicaid (EPSDT): Prior authorization is typically not required. Include the appropriate EPSDT-covered ICD-10 code and ensure the claim reflects the correct age of the patient.
• Commercial pediatric plans: Many cover newborn OAE screening under preventive benefits. Billing under the preventive benefit bucket (if available) may avoid cost-sharing for the family.

Submitting and tracking CPT code 92587 claims efficiently

Audiology practices billing CPT code 92587 across multiple payers need a workflow that checks frequency counts, modifiers, and LCD documentation before submission. Practice management software like Pabau keeps CPT codes, modifier rules, and prior authorization tracking in its claims management software. That cuts the manual steps that introduce errors on OAE claims.

Connecting to a clearinghouse is the other critical step. Pabau integrates with Claim.MD, which routes claims to over 4,000 US payers and returns real-time eligibility responses and electronic remittance data. The built-in CPT catalog inside Claim.MD includes 92587 and its modifiers. The clearinghouse validates the code against the patient’s plan before the claim reaches the payer. Learn more about how the Claim.MD clearinghouse works for practices billing audiology CPT codes.

Simplify audiology billing with Pabau

Pabau’s claims management software tracks CPT codes, modifiers, and payer-specific rules in one place. Your billing team spends less time correcting 92587 claims and more time on patient care.

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Conclusion

CPT code 92587 turns on how many distortion product frequencies were tested in each ear. Any TEOAE test and any DPOAE test short of 12 frequencies per ear bill as 92587, and one unit covers both ears. Build that count and the ears tested into the OAE report template. Coders can then pick the right code before the claim goes out, instead of defending it on appeal.

Pabau’s claims management software keeps audiology billing teams on top of modifier rules and payer requirements without building a separate lookup process for every claim. To see how Pabau handles the full billing workflow for audiology and specialty practices, book a demo.

Continue your research

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Want a clean claims checklist for audiology? What makes a clean claim covers the pre-submission checks that prevent the most common rejections.

Exploring clearinghouse options for your practice? Medical claims clearinghouse guide explains how clearinghouses validate and route claims before they reach payers.

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