G915 – Percutaneous diagnostic lumbar facet medial branch block with ultrasound guidance - each additional site
OHIP Diagnostic & Therapeutic Procedures Code — DIAGNOSTIC AND THERAPEUTIC PROCEDURES · Schedule of Benefits
This service represents the injection of each additional site for a percutaneous diagnostic lumbar facet medial branch block using ultrasound guidance. It is billed in addition to G914 for the first site. As per the commentary on page , ultrasound images must be of sufficient quality to clearly identify the injection site and needle placement at the junction of the transverse process and superior articular process.
When to Use
- Use G915 for the second, third, and subsequent medial branch blocks performed during the same session as the primary G914 procedure.
- Apply this code when treating multiple lumbar levels (e.g., L3-L4 and L4-L5) in a single encounter, provided the ultrasound guidance requirements are met for each specific site.
Common Pitfalls
- Billing G915 without an associated G914 claim will result in automatic rejection as it is strictly an add-on code.
- Exceeding the daily maximum of 7 units for G915 will trigger a rejection, as the total count includes the initial G914 and subsequent G915 units combined.
- Failing to retain ultrasound images that clearly demonstrate the needle tip at the junction of the transverse process and superior articular process creates a high audit risk.
Billing Tips
- Ensure the total number of units for G915 does not exceed 6, as the combined total of G914 and G915 cannot exceed the daily limit of 7.
Effective: April 1, 2025
J. Diagnostic and Therapeutic Procedures
DIAGNOSTIC AND THERAPEUTIC PROCEDURES
Procedure
Diagnostic and Therapeutic Procedures
Ultrasound images must be of sufficient quality to clearly identify the injection site and needle placement at the junction of the transverse process and superior articular process.
G915 is limited to a maximum of 7 services per patient per day.
The parent code G914 is only eligible for payment when a fluoroscopically guided facet injection has been rendered for the same site(s) within the previous 12 month period by the same physician.
The parent code G914 is limited to 6 services per patient per 12 month period. If, in the opinion of the treating physician, more frequent services are necessary, the physician may obtain written prior authorization from the MOH.
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