G284 – Single chamber reprogramming including electrocardiography - technical component
OHIP Diagnostic & Therapeutic Procedures Code — DIAGNOSTIC AND THERAPEUTIC PROCEDURES · Schedule of Benefits
Represents the technical component of single chamber pacemaker reprogramming, which includes the use of equipment and personnel to perform the electrocardiography (ECG) and other technical aspects of the service. This is billed separately from the professional component (G283), which covers the physician's interpretation and report.
When to Use
- Use G284 when you perform the technical data acquisition and ECG recording for a single-chamber pacemaker check in an office setting.
- Bill G284 in conjunction with G283 when you provide both the professional interpretation and the technical equipment/personnel support for the reprogramming session.
Common Pitfalls
- Billing G284 for an inpatient service will trigger a rejection or recovery if the patient is admitted to the hospital within 24 hours of the procedure.
- Failing to apply the 86.10% fee reduction when billing G284A for services rendered within a hospital facility is a frequent audit trigger.
- Submitting G284 without G283 when the professional interpretation was also performed by the same provider leads to incomplete billing.
Billing Tips
- Always append the suffix 'A' (G284A) when billing the technical component for services performed within a hospital facility to ensure the correct fee adjustment is applied.
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.
The physician maintains documentation that describes the process by which the physician monitors quality assurance in accordance with professional standards.
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