All codes
G249
G249 – Electrophysiologic measurements
OHIP Diagnostic & Therapeutic Procedures Code — DIAGNOSTIC AND THERAPEUTIC PROCEDURES · Schedule of Benefits
Electrophysiologic measurements (includes one or all of sinus node recovery times, HIS bundle measurements, conduction times and/or refractory periods), includes percutaneous access and insertion of electrodes. This code is classified as a 'Major Invasive Procedure' on page of the Schedule, which qualifies it for after-hours procedure premiums when the service is either non-elective or an elective procedure delayed due to an intervening surgical emergency. As such, it is eligible for after-hours premiums, including E409, E410, E412, and E413.
When to Use
- Use G249 when performing a diagnostic electrophysiologic study that includes specific measurements like sinus node recovery times or HIS bundle conduction times.
- Use G249 for the percutaneous insertion of electrodes required to obtain these specific electrophysiologic measurements during an invasive diagnostic procedure.
Common Pitfalls
- Do not bill G249 in addition to other cardiac catheterization or ablation codes if the Schedule specifically lists them as inclusive or mutually exclusive.
- Avoid billing G249 for routine ECG or Holter monitoring, as it is strictly intended for invasive electrophysiologic studies involving percutaneous access.
- Claims for after-hours premiums E409 or E410 will be rejected if the procedure is elective and not delayed by a documented surgical emergency.
Billing Tips
- Ensure the procedure start time is clearly documented in the operative report to support the application of E409 or E410 premiums for non-elective cases.
- If you are an Emergency Department physician, ensure you use the 'H' prefix and the appropriate emergency-specific premiums (E412 or E413) rather than the standard procedural premiums.
Ready to bill this code?
SnapBill makes OHIP billing simple — auto-filled codes, validation, and batch submission.