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G117
G117 – Thoracic epidural or spinal injection
OHIP Diagnostic & Therapeutic Procedures Code — DIAGNOSTIC AND THERAPEUTIC PROCEDURES · Schedule of Benefits
A percutaneous therapeutic epidural injection in the thoracic spine. This service is part of the Interventional Pain Injections group. Payment is subject to limitations on frequency and co-billing with other procedures as detailed in the payment rules. See .
When to Use
- Use G117 for a percutaneous therapeutic epidural injection specifically targeting the thoracic spine for pain management.
- Use G117 when performing a diagnostic or therapeutic epidural injection that is distinct from any sympathetic block (which is not separately payable as G236, G234, or G920).
Common Pitfalls
- Attempting to bill G236, G234, or G920 for a sympathetic block resulting from the G117 procedure, which is explicitly disallowed.
- Billing G117 concurrently with surgical procedures or anesthetic fees, as it is restricted unless specifically using E030C or E031C for sedation support.
- Failing to document the specific 'separate condition' if attempting to bill G117 on the same day as G236, G234, or G920, leading to automatic rejection.
Billing Tips
- Ensure you append the appropriate add-on codes like E440 (fluoroscopy), E441 (previous surgery level), E442 (transforaminal), or E443 (catheter) to maximize the claim value when the clinical criteria are met.
- If the procedure is non-elective and performed after hours, apply the correct E-series premium (E409-E413) based on your provider status and the time of commencement to increase the base fee.
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