G371 – Injection or aspiration of additional bursa, joint, ganglion or tendon sheath
OHIP Diagnostic & Therapeutic Procedures Code — DIAGNOSTIC AND THERAPEUTIC PROCEDURES · Schedule of Benefits
This code is for each additional bursa, joint, ganglion or tendon sheath injection or aspiration, following an initial service (e.g., G370), up to a maximum of 5 such additional services. This service is not eligible for payment when rendered in conjunction with a surgical procedure involving the same site or area. Only one of G370, G371, G328 and G329 is eligible for payment for the same bursa, joint or complex joint. Aspiration and/or injection of the olecranon bursa is only eligible for payment as G370/G371. G328/G329 are not eligible for payment solely for injection of complex joint. G370, G371, G328, G329 are uninsured services for injection of intra-articular viscosupplementation agents.
When to Use
- Use G371 for the second through fifth additional joint or bursa injections performed during the same encounter as the primary injection (G370).
- Apply G371 when treating multiple distinct sites, such as bilateral knee injections or a combination of a shoulder joint and a subacromial bursa injection, following the initial G370 claim.
Common Pitfalls
- Billing G371 for viscosupplementation (e.g., hyaluronic acid) is prohibited, as these are considered uninsured services regardless of the joint treated.
- Submitting G371 when performing a surgical procedure at the same site will result in a rejection, as the injection is considered bundled into the surgical fee.
- Attempting to bill G371 for the same joint site as G370 is a billing error; G371 is strictly for additional, separate anatomical sites.
Billing Tips
- Ensure you bill the primary site as G370 and subsequent distinct sites as G371 to correctly trigger the add-on logic for up to five additional services.
- If a blind injection fails and you must repeat it using image guidance, you may append E446 to the G371 claim to capture the premium for the guidance component.
Effective: April 1, 2025
J. Diagnostic and Therapeutic Procedures
DIAGNOSTIC AND THERAPEUTIC PROCEDURES
Procedure
Diagnostic and Therapeutic Procedures
All insured services must be documented in appropriate records that establish: 1. an insured service was provided; 2. the service for which the account is submitted is the service that was rendered; and 3. the service was medically necessary.
For the purpose of G328 and G329, a joint is defined as complex only if it is: a. a joint other than the knee; or b. a knee joint in which the anatomy is distorted by disseminated lupus erythaematosus, dermatomyositis, rheumatoid arthritis, Still's disease, ankylosing spondylitis or other seronegative spondyloarthropathies.
E446 is only eligible for payment when injection of the joint must be repeated using any method of image guidance following a failed blind attempt(s) by the same or different physician. Professional and/or technical fees for obtaining and interpreting the images required for the purpose of guidance of the injection are not eligible for payment to any physician.
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