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E604C
E604C – Fixation of Each Additional Rib Exceeding Four Ribs - Anaesthesia
OHIP Surgical Assists Code — Respiratory Surgical Procedures · Schedule of Benefits
Payable to the anaesthesiologist for providing anaesthesia during the fixation of each additional rib exceeding four ribs. This is an add-on to a primary rib fixation procedure such as M116. Payment is calculated by adding 2 base units to the time units for the procedure.
When to Use
- Use this code for the 5th, 6th, and subsequent ribs fixed during a multi-rib stabilization procedure where the primary code M116 covers the first four ribs.
- Apply this code as an add-on unit when the surgical report explicitly confirms the fixation of more than four ribs, ensuring each additional rib is billed as a separate unit of E604C.
Common Pitfalls
- Billing E604C for the first four ribs, which are already included in the base anaesthesia units for the primary procedure M116.
- Failing to specify the quantity of E604C units billed, which must correspond exactly to the number of ribs fixed beyond the initial four.
Billing Tips
- Ensure the operative report clearly lists the total number of ribs fixed to justify the number of E604C units claimed, as this is a common target for post-payment audit.
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