G853 – Fluorescein angiography - technical component
OHIP Diagnostic & Therapeutic Procedures Code — DIAGNOSTIC AND THERAPEUTIC PROCEDURES · Schedule of Benefits
Represents the technical component of a fluorescein angiography. This service is performed in conjunction with the professional component, G425. For bilateral procedures, the fee for this service is increased by 50% ().
When to Use
- Use G853 to bill for the technical capture of fluorescein angiography images when performed in a non-hospital setting, paired with G425 for the professional interpretation.
- Apply this code when the physician owns or operates the imaging equipment and assumes full responsibility for the quality assurance and data acquisition process.
Common Pitfalls
- Billing G853 for an inpatient service is prohibited; if the patient is admitted within 24 hours of the procedure, the claim will be rejected or subject to recovery.
- Failing to apply the 13.9% reduction (payable at 86.10%) when the technical component is performed within a hospital facility, as per GP11 rules.
- Submitting G853 without the corresponding professional component G425, which is required to substantiate the diagnostic service.
Billing Tips
- Always append the bilateral modifier or increase the fee by 50% when performing the procedure on both eyes to ensure correct payment under J90.
- Ensure your documentation explicitly confirms the technical quality assurance process, as the MOH requires proof of oversight for the technical component under GP11.
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 this upon request by the MOH. (:)
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