R598 – Removal of extensive external fixation device under general anaesthetic
OHIP Radiology Code — MUSCULOSKELETAL SYSTEM SURGICAL PROCEDURES · Schedule of Benefits
This procedure involves the removal of an extensive external fixation device. It is specifically designated to be performed while the patient is under a general anaesthetic.
When to Use
- Use R598 for the removal of complex, multi-pin or ring external fixation devices (e.g., Ilizarov or Taylor Spatial Frame) that require general anaesthesia for patient comfort and safety.
- Use R598 when the removal process involves significant soft tissue management or hardware extraction that cannot be safely performed under local anaesthetic in an office or clinic setting.
Common Pitfalls
- Do not bill R598 for simple pin removal or minor hardware extraction that does not meet the definition of an 'extensive' device; use appropriate minor surgery codes instead.
- Avoid billing R598 if the procedure is performed under local anaesthetic or sedation only, as the code explicitly requires general anaesthesia.
- Failure to document the complexity of the fixation device can lead to audit scrutiny; ensure the operative report justifies why the device was classified as 'extensive'.
Billing Tips
- Ensure that the anaesthesiologist's claim is linked to the R598 procedure code to ensure proper processing of anaesthesia units and relevant premiums.
- If the removal occurs after hours or on weekends, verify eligibility for E409 or E410 to maximize the procedural fee, provided the criteria for non-elective or emergency-delayed surgery are met.
Effective: April 1, 2025
N. Musculoskeletal System Surgical Procedures
MUSCULOSKELETAL SYSTEM SURGICAL PROCEDURES
Surgical
Musculoskeletal System Surgical Procedures
The medical record must establish that an insured service was provided, the service for which the account is submitted is the service that was rendered, and the service was medically necessary.
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