G647 – Technical component - 14 or more days recording
OHIP Diagnostic & Therapeutic Procedures Code — DIAGNOSTIC AND THERAPEUTIC PROCEDURES · Schedule of Benefits
This is the technical component for the recording of a Level 1 continuous ambulatory electrocardiogram for a period of 14 or more days. Level 1 Requirements: - The device must be capable of recording three or more simultaneous channels. - It must acquire a continuous ambulatory electrocardiographic recording of all beats. - It must use three or more skin electrodes. - The device must have the ability to analyze and manually review all parts of the recording. - It must 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. - Must include a patient diary and event marker capability to enable symptom-rhythm correlation. - Requires a minimum 12 hours of monitoring (this specific code is for 14+ days).
When to Use
- Use G647 for extended ambulatory cardiac monitoring (e.g., Zio XT or similar patch devices) when the recording duration meets or exceeds 14 days.
- Select G647 when the device meets Level 1 technical requirements, specifically the ability to perform a continuous, beat-to-beat analysis of three or more channels.
Common Pitfalls
- Billing G647 in conjunction with G648 or G649 for the same recording period is a duplicate claim error, as G647 covers the technical component for the entire 14-day duration.
- Failing to ensure the device captures three or more simultaneous channels will lead to audit rejection, as this is a strict requirement for the Level 1 classification of G647.
- Submitting G647 when the patient recording duration is less than 14 days will result in a claim rejection; use G648 or G649 for shorter durations.
Billing Tips
- Ensure the technical component claim includes the specific start and end dates of the 14-day monitoring period to substantiate the duration requirement.
- If the service is performed in a hospital setting, remember that the payment is automatically adjusted to 94.68% of the fee, so do not attempt to bill the full amount.
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.
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.