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G477
G477 – Interpretation of comprehensive urodynamic studies
OHIP Diagnostic & Therapeutic Procedures Code — DIAGNOSTIC AND THERAPEUTIC PROCEDURES · Schedule of Benefits
G477 is the fee for the interpretation of comprehensive urodynamic studies when the procedure is performed by paramedical personnel. This service represents the professional component of the study. Comprehensive urodynamic studies may include services such as G475, G192, or G193. This service includes the common elements of all insured services as described in the Schedule of Benefits.
When to Use
- Use G477 when you are interpreting the results of a urodynamic study performed by paramedical staff in a facility where you are not billing the technical component.
- Use this code when the study was technically performed under G475, G192, or G193 by a technician, and you are providing the formal professional interpretation.
Common Pitfalls
- Billing G477 in conjunction with G475, G192, or G193 is a direct violation of the Schedule of Benefits, as those codes already include the professional component.
- Attempting to bill G477 when you have already billed a global procedure code for the same patient on the same day will result in an automatic rejection.
Billing Tips
- Ensure your billing record clearly indicates that the technical component was performed by paramedical personnel to justify the use of the professional-only code G477.
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