G320 – Interpretation of telephone transmitted ECG rhythm strip - professional component
OHIP Diagnostic & Therapeutic Procedures Code — DIAGNOSTIC AND THERAPEUTIC PROCEDURES · Schedule of Benefits
This service represents the physician's interpretation (professional component) of a telephone-transmitted electrocardiography (ECG) rhythm strip. It is a diagnostic service that is paired with the corresponding technical component, G311. As per the definition of a professional component, this service must be rendered personally by a physician with the appropriate training and experience. See , , and for general rules on professional components.
When to Use
- Use G320 to bill for the professional interpretation of a rhythm strip transmitted via telephone from a patient's home or remote location, provided you also bill G311 for the technical component.
- Apply this code when reviewing a transmitted rhythm strip that requires a formal diagnostic report, distinguishing it from a standard office ECG which should be billed under G212.
Common Pitfalls
- Billing G320 without the mandatory G311 technical component will result in an automatic rejection as the professional component is invalid on its own.
- Attempting to bill G320 for a standard in-office ECG interpretation is an audit risk, as G320 is strictly reserved for telephone-transmitted rhythm strips.
Billing Tips
- Ensure your clinical notes include the date, time, and the specific findings of the rhythm strip to justify the professional fee, as this documentation is frequently requested during audits.
Effective: April 1, 2025
J. Diagnostic and Therapeutic Procedures
DIAGNOSTIC AND THERAPEUTIC PROCEDURES
Diagnostic
Diagnostic and Therapeutic Procedures
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