G652 – Technical component - 12 to 35 hours scanning
OHIP Diagnostic & Therapeutic Procedures Code — DIAGNOSTIC AND THERAPEUTIC PROCEDURES · Schedule of Benefits
This is the technical scanning component for a Level 1 continuous ECG monitoring service, corresponding to a recording of 12 to 35 hours. Level 1 requires a device capable of recording three or more simultaneous channels and the acquisition of a continuous ambulatory electrocardiographic recording of all beats, using three or more skin electrodes, for a minimum of 12 hours. The device must also have the ability to analyze and manually review all parts of the recording, and to produce graphical and quantitative reports of relevant parameters and diagnostic quality tracings for visual review, including post-hoc review of any portion of the recording to enable diagnostic rhythm analysis. It must include a patient diary and event marker capability to enable symptom-rhythm correlation. See also G651 for the recording component and G650 for the professional component.
When to Use
- Use G652 when the Holter monitor recording duration exceeds 12 hours but remains under 35 hours, ensuring the device meets the three-channel requirement.
- Submit G652 in conjunction with G651 (recording component) and G650 (professional component) to complete the full billing cycle for a standard 24-hour Holter study.
Common Pitfalls
- Billing G652 alongside G683 or G685 will trigger an automatic rejection due to the restricted code list for ambulatory ECG monitoring.
- Submitting G652 for studies lasting less than 12 hours is a common audit risk; ensure the technical report confirms the minimum duration was met.
- Claiming the full fee for G652 when the service is performed in a hospital setting will lead to an overpayment, as it must be billed at 86.10% of the fee.
Billing Tips
- Always verify the total recording time in the technical report before submission to ensure it falls within the 12-35 hour window, as studies exceeding 35 hours require different billing codes.
Effective: April 1, 2026
J. Diagnostic and Therapeutic Procedures
DIAGNOSTIC AND THERAPEUTIC PROCEDURES
Diagnostic
Diagnostic and Therapeutic Procedures
The physician submitting a claim for the technical component is responsible for the complete quality assurance process for all elements of the technical component of the service, including data acquisition, reporting, and record keeping. The physician must be able to demonstrate the above upon request by the MOH.
1. Maximum one professional component, one technical recording component and one technical scanning component per patient, per recording.
Ready to bill this code?
SnapBill makes OHIP billing simple — auto-filled codes, validation, and batch submission.