G648 – Technical component - 14 or more days scanning
OHIP Diagnostic & Therapeutic Procedures Code — DIAGNOSTIC AND THERAPEUTIC PROCEDURES · Schedule of Benefits
This is the technical scanning component of a Level 1 continuous ambulatory electrocardiographic (ECG) monitoring service that has a recording duration of 14 or more days. This service involves the technical analysis and processing of the recorded ECG data and is performed as part of a complete Holter monitoring service which also includes recording (G647) and professional interpretation (G649).
When to Use
- Use G648 when you have completed the technical analysis and processing of an extended Holter monitor recording that lasted 14 days or longer.
- Use this code specifically for the technical scanning phase when the recording phase (G647) and the professional interpretation (G649) are billed as separate components of the same 14+ day study.
Common Pitfalls
- Billing G648 for a recording duration of less than 14 days, which will trigger a rejection or audit recovery; use standard Holter codes for shorter durations.
- Submitting G648 without a corresponding G647 for the same patient and date range, as the technical component is dependent on the existence of the recording component.
- Failing to apply the 86.10% fee reduction when the technical service is performed within a hospital facility.
Billing Tips
- Ensure your billing software is configured to link G648, G647, and G649 to the same referral and diagnostic episode to maintain audit compliance.
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 have the necessary training and experience to personally render the technical component of the service.
The physician must maintain documentation that describes the process by which the physician monitors quality assurance in accordance with professional standards.
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.
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