G440 – Pure tone threshold audiometry - technical component
OHIP Diagnostic & Therapeutic Procedures Code — DIAGNOSTIC AND THERAPEUTIC PROCEDURES · Schedule of Benefits
This code represents the technical component for pure tone threshold audiometry, a basic diagnostic hearing test which may include bone conduction testing. It is listed under the Otolaryngology subsection of Diagnostic and Therapeutic Procedures. The corresponding professional component for interpretation is billed separately as G525. When rendered in a hospital, this service is subject to a payment adjustment.
When to Use
- Use G440 when you personally perform the technical acquisition of pure tone threshold audiometry in an office setting.
- Use this code specifically for the technical component when the professional interpretation is billed separately under G525.
Common Pitfalls
- Billing G440 on the same day as G525, G441, or G526 will result in a total rejection of the claim.
- Submitting G440 for services rendered to an inpatient or a patient who is admitted to the hospital within 24 hours of the test violates the technical component payment rules.
Billing Tips
- Ensure your office records include documented quality assurance protocols for the equipment used, as this is a mandatory requirement for claiming the technical component.
Effective: April 1, 2026
J. Diagnostic and Therapeutic Procedures
DIAGNOSTIC AND THERAPEUTIC PROCEDURES
Diagnostic
Diagnostic and Therapeutic Procedures
The physician has the necessary training and experience to personally render the technical component of the service.
The physician maintains documentation that describes the process by which the physician monitors quality assurance in accordance with professional standards.
The physician submitting a claim for the technical component is responsible for the complete quality assurance process for all elements of the technical component of the service, including data acquisition, reporting, and record keeping. The physician must be able to demonstrate the above upon request by the MOH.
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