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G918
G918 – Caudal
OHIP Diagnostic & Therapeutic Procedures Code — DIAGNOSTIC AND THERAPEUTIC PROCEDURES · Schedule of Benefits
Percutaneous epidural injection, caudal. It is one of the percutaneous epidural injection services listed under the Nerve Blocks - Interventional Pain Injections section. Add-on codes are available for concomitant procedures such as fluoroscopy (E440), revision at the same level of previous surgery (E441), use of a transforaminal technique (E442), or catheter/port insertion (E443, E833).
When to Use
- Use G918 for percutaneous caudal epidural injections performed for the management of chronic pain or radiculopathy.
- Use G918 when a caudal approach is specifically chosen over other epidural routes (e.g., lumbar interlaminar or transforaminal) for therapeutic or diagnostic purposes.
Common Pitfalls
- Billing G918 alongside G236, G234, or G920 without clear documentation that the services were for separate, distinct clinical conditions.
- Attempting to bill G918 in conjunction with any concurrent surgical procedure or anesthetic fee, which will trigger an automatic rejection unless E030C or E031C is applicable.
- Exceeding the global limit of 12 services per patient per 12-month period when combining G918 with G117, G119, or G246.
Billing Tips
- Always append the appropriate add-on code (e.g., E440 for fluoroscopy) to the G918 claim to ensure full reimbursement for technical components.
- Ensure the procedure is not billed with G919 for the same clinical encounter, as G919 is mutually exclusive for the same procedure.
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