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G261
G261 – Arrhythmia induction - atrial
OHIP Diagnostic & Therapeutic Procedures Code — DIAGNOSTIC AND THERAPEUTIC PROCEDURES · Schedule of Benefits
Arrhythmia induction to include programmed electrical stimulation, drug provocation and termination of arrhythmia, if necessary - once per patient per 24 hours. This is a Major Invasive Procedure eligible for after-hours procedure premiums when the service is non-elective or delayed by an emergency. See for details on after-hours premiums.
When to Use
- Use G261 when performing programmed electrical stimulation to induce atrial arrhythmias for diagnostic mapping or assessment.
- Use G261 when the procedure involves pharmacological provocation of atrial arrhythmias in a controlled clinical setting.
- Use G261 when the procedure includes the necessary termination of the induced atrial arrhythmia as part of the primary intervention.
Common Pitfalls
- Billing G261 on the same day as G521, G522, G523, G395, or G391 will result in an automatic rejection due to explicit billing restrictions.
- Attempting to claim G261 more than once per patient per 24-hour period is prohibited and will be rejected by the Ministry.
- Applying after-hours premiums (E409, E410, E412, E413) to elective procedures that were not delayed by an emergency or categorized as non-elective is a common audit trigger.
Billing Tips
- Ensure the procedure is documented as non-elective or delayed by an emergency if you are attaching after-hours premiums to the G261 claim.
- Verify that no other diagnostic or therapeutic procedure codes from the restricted list (G521-G391) are submitted for the same patient on the same date of service.
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