What is OHIP billing code G684?

G684 is "Continuous ECG monitoring - technical component - 60 hours to 13 days recording", an OHIP Diagnostic and Therapeutic Procedures code from the Ontario Schedule of Benefits (Physician Services).

How much does G684 pay?

The current OHIP fee for G684 is $83.25, effective 2026-04-01, per the Ontario Schedule of Benefits.

How do I bill G684 to OHIP?

G684 is submitted through OHIP's MCEDT claims system, either directly or via billing software. SnapBill validates G684 claims against the Schedule of Benefits rules before submission.

What codes are related to G684?

Codes related to G684 in the Schedule of Benefits include G685, G659.

All codes

G684

G684 – Continuous ECG monitoring - technical component - 60 hours to 13 days recording

OHIP Diagnostic and Therapeutic Procedures Code — DIAGNOSTIC AND THERAPEUTIC PROCEDURES · Schedule of Benefits

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This fee code represents the technical recording component for a Level 1 continuous ECG monitoring service, commonly known as a Holter monitor, for a period ranging from 60 hours up to and including 13 days. Level 1 Requirements: The service must utilize a device capable of recording three or more simultaneous channels and acquiring a continuous electrocardiographic recording of all beats via three or more skin electrodes. The device must also facilitate analysis, manual review of the entire recording, and produce detailed reports with diagnostic quality tracings. Additionally, it must support a patient diary and an event marker for symptom-rhythm correlation. This fee covers the provision of the equipment and the recording process itself. The associated scanning component is billed as G685 and the professional component as G659.

Referral requiredFrom: Physician, NursePractitioner

The physician has the necessary training and experience to personally render the technical component of the service.

The physician maintains documentation that describes the process by which the physician monitors quality assurance in accordance with professional standards.

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.

Usage limits

[1, "per_recording", "per_patient", "Maximum one technical recording component per patient, per recording."]

G685 G659

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. 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. Must include a patient diary and event marker capability to enable symptom-rhythm correlation. Minimum 12 hours of monitoring.

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