CPT 92558
Global XXXEvoked auditory test qual
CPT 92558 Billing & Documentation Guide
CPT code 92558 (Evoked auditory test qual) is classified under Audiology with a global period indicator of XXX. The 2026 Medicare Physician Fee Schedule assigns a work RVU of 0.17, a non-facility practice expense RVU of 0.11, and a malpractice RVU of 0.01, a total non-facility RVU of 0.29 and facility RVU of 0.22. With the current conversion factor of $33.4009, the national average non-facility reimbursement is approximately $9.91, though rates vary from $9.01 to $12.61 based on MAC locality and Geographic Practice Cost Indices (GPCIs).
When billing 92558, ensure documentation supports medical necessity and the specific components required for the code's level of service. For E/M codes, document MDM (medical decision-making) elements: problems addressed, data reviewed, and risk. For procedural codes, document the indication, technique, and any complications. Always verify NCCI edits before bundling 92558 with related codes; this code has 10 PTP bundling relationships on file (see table below).
Payment Status & Global Period
Statutory exclusion
No global period (E/M and other non-procedural services)
MUE Limit (Medically Unlikely Edits)
Submitting more than 0 units of 92558 for the same patient on the same date triggers automatic line denial unless an appropriate modifier and supporting documentation justify the higher quantity.
RVU Breakdown, CPT 92558
| Component | Non-Facility | Facility |
|---|---|---|
| Work RVU | 0.17 | 0.17 |
| Practice Expense RVU | 0.11 | 0.04 |
| Malpractice RVU | 0.01 | 0.01 |
| Total RVU | 0.29 | 0.22 |
| Conversion Factor | $33.4009 | |
2026 Medicare Reimbursement by State, CPT 92558
State-level averages across all MAC localities. Non-facility rates typically apply to office-based services; facility rates apply to hospital outpatient / inpatient.
| State | Non-Facility | Facility | Range (Non-Fac) | Localities |
|---|---|---|---|---|
| California | $10.41 | $7.64 | $9.98 - $11.78 | 29 |
| Florida | $10.01 | $7.67 | $9.69 - $10.35 | 3 |
| Georgia | $9.59 | $7.36 | $9.35 - $9.83 | 2 |
| Illinois | $9.89 | $7.63 | $9.55 - $10.18 | 4 |
| Michigan | $9.6 | $7.41 | $9.41 - $9.79 | 2 |
| North Carolina | $9.32 | $7.14 | $9.32 - $9.32 | 1 |
| New York | $10.5 | $7.89 | $9.4 - $11.03 | 5 |
| Ohio | $9.37 | $7.23 | $9.37 - $9.37 | 1 |
| Pennsylvania | $9.68 | $7.4 | $9.37 - $10 | 2 |
| Texas | $9.64 | $7.34 | $9.33 - $9.87 | 8 |
Source: CMS PFSRVU 2026 · Updated 2026-04-01. Full locality-level detail available for all 53 states, contact us for custom reports.
NCCI Bundling Edits, CPT 92558
Procedure-to-procedure (PTP) edits. If you bill any of these codes with 92558 on the same date of service, review the modifier indicator and payer policy before submission.
| Partner Code | Relationship | Modifier Allowed | Rationale |
|---|---|---|---|
| 36591 | Column 1 (primary), can be billed with modifier | No | CPT Manual or CMS manual coding instruction |
| 36592 | Column 1 (primary), can be billed with modifier | No | CPT Manual or CMS manual coding instruction |
| 69209 | Column 1 (primary), can be billed with modifier | No | Misuse of Column Two code with Column One code |
| 69210 | Column 1 (primary), can be billed with modifier | No | Misuse of Column Two code with Column One code |
| 96523 | Column 1 (primary), can be billed with modifier | No | CPT Manual or CMS manual coding instruction |
| 0728T | Column 2 (secondary), bundled into primary | No | Misuse of Column Two code with Column One code |
| 0729T | Column 2 (secondary), bundled into primary | No | Misuse of Column Two code with Column One code |
| 92587 | Column 2 (secondary), bundled into primary | No | More extensive procedure |
| 92588 | Column 2 (secondary), bundled into primary | No | More extensive procedure |
| 92601 | Column 2 (secondary), bundled into primary | No | Misuse of Column Two code with Column One code |
Frequently Asked Questions, CPT 92558
What does CPT code 92558 mean? +
CPT code 92558 represents: Evoked auditory test qual. It's in the Audiology category with a global period of XXX.
What is the Medicare reimbursement for CPT 92558? +
The 2026 Medicare national average non-facility payment for CPT 92558 is $9.91. Rates range from $9.01 to $12.61 across 53 states depending on MAC locality and GPCIs.
What modifiers can I use with CPT 92558? +
Medicine section spans a wide range: therapy services use GP/GO/GN (PT/OT/SLP plans of care) and KX (above cap with documentation). Drug administration uses JW (waste) and JZ (no waste). Professional/technical split applies to some diagnostic codes.
What bundling edits apply to CPT 92558? +
This code has 10 NCCI PTP bundling relationships. See the NCCI Bundling section below for full list.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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