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G478
G478 – Electroconvulsive therapy (ECT) cerebral
OHIP Diagnostic & Therapeutic Procedures Code — DIAGNOSTIC AND THERAPEUTIC PROCEDURES · Schedule of Benefits
This service covers the performance of single or multiple applications of cerebral electroconvulsive therapy (ECT) for a patient admitted to a hospital. This code is intended for use by the physician performing the ECT. The anaesthesia service for this procedure (G478C) has 6 base units as per the Schedule.<br><br>Note: As per , Electrosleep therapy or Sedac therapy are not insured benefits.
When to Use
- Use G478 for the physician performing the ECT procedure on an admitted hospital patient.
- Use G478 when providing ECT as a therapeutic intervention for treatment-resistant psychiatric conditions.
Common Pitfalls
- Billing G478 for non-hospitalized patients, as the code explicitly requires the patient to be admitted to a hospital.
- Confusing G478 with anaesthesia services; the anaesthesiologist must bill G478C, not G478, to avoid claim rejection.
- Attempting to bill for Electrosleep or Sedac therapy under G478, which are explicitly non-insured services per Section J106.
Billing Tips
- Ensure the anaesthesia component (G478C) is billed separately by the anaesthesiologist, noting that it carries 6 base units.
- If the procedure occurs during after-hours periods, ensure the appropriate anaesthesia premium (E400C or E401C) is applied to the anaesthesia service (G478C) rather than the procedure code G478 itself.
Provider Fee$102.35
Anaesthetist Fee$95.76
Non-Anaesthetist Fee$95.76
Effective: April 1, 2026
Category
J. Diagnostic and Therapeutic Procedures
Subcategory
DIAGNOSTIC AND THERAPEUTIC PROCEDURES
Service Type
Procedure
Code Classes
Diagnostic and Therapeutic Procedures
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