G154 – Cortical evoked audiometry - professional component
OHIP Diagnostic & Therapeutic Procedures Code — APPENDIX F · Schedule of Benefits
This fee is for the professional component of cortical evoked audiometry as required by the Workplace Safety and Insurance Board (WSIB). The test must involve a minimum of 4 frequencies in each ear. The corresponding technical component is billed using G153. A 'professional component' is a class of service listed in the Schedule headed by a column listed 'P' or with 'professional component' listed opposite the service (:). Note: This payment represents full payment for the service. No additional charge to either OHIP or the patient for this service is permitted. This service is listed in Appendix F, which is reproduced for informational purposes and does not form part of the official Schedule of Benefits (:).
When to Use
- Use G154 specifically when interpreting cortical evoked audiometry results explicitly requested by the WSIB for a workplace injury claim.
- Use this code only when the diagnostic procedure includes a minimum of 4 frequencies tested in each ear to meet the professional interpretation requirement.
Common Pitfalls
- Billing any other service on the same day as G154 will result in an automatic rejection, as this code is restricted to a single-service day for non-ophthalmologists.
- Failing to ensure the WSIB has formally requested the assessment, as G154 is strictly for WSIB-mandated diagnostic professional components rather than routine clinical audiometry.
- Confusing G154 with G153; G154 is the professional interpretation fee, while G153 is the technical component fee and is subject to the 86.10% payment adjustment.
Billing Tips
- Ensure the claim is submitted with the appropriate WSIB claim number to avoid administrative delays or audit flags regarding the necessity of the professional component.
Effective: April 1, 2026
AF. Appendix F
APPENDIX F
Diagnostic
Diagnostic and Therapeutic Procedures
The service must be required by the Workplace Safety and Insurance Board (WSIB).
The technical component of the cortical evoked audiometry service rendered in a hospital is payable at 86.10% of the listed fee.
This payment represents full payment for the service. No additional charge to either OHIP or the patient for this service is permitted.
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