R959 – Bone transport - circular external fixation (less than or equal to 6 cm)
OHIP Radiology Code — MUSCULOSKELETAL SYSTEM SURGICAL PROCEDURES · Schedule of Benefits
This code is for a surgical procedure listed in the Musculoskeletal System section of the Schedule of Benefits. The specific details of the procedure are not provided in the context, but it is identified as a surgical service. The service is performed by a surgeon (suffix A) and may involve an assistant (suffix B) and an anaesthesiologist (suffix C). The fee listed is for the surgeon's professional service. Additional premiums may apply for services rendered to children, after hours, or for trauma cases.
When to Use
- Use R959 for the surgical application of circular external fixation specifically for bone transport procedures where the transport distance is 6 cm or less.
- Select this code when the primary surgical intent is limb lengthening or bone segment transport using a circular frame, provided the distance criteria are met.
Common Pitfalls
- Billing R959 for bone transport exceeding 6 cm, which requires a different fee schedule or manual assessment for the increased complexity.
- Failing to document the specific transport distance in the operative report, which is essential to justify the use of this specific code over other external fixation codes.
- Incorrectly applying after-hours premiums (E409/E410) to elective bone transport cases, as these premiums are restricted to non-elective procedures or those delayed by emergencies.
Billing Tips
- Ensure the Injury Severity Score (ISS) is explicitly documented in the chart if claiming the E420 trauma premium, as this is a frequent audit trigger for orthopedic surgical claims.
Effective: April 1, 2025
N. Musculoskeletal System Surgical Procedures
MUSCULOSKELETAL SYSTEM SURGICAL PROCEDURES
Surgical
Musculoskeletal System Surgical Procedures
All insured services must be documented in appropriate records. The Act requires that the record establish that: 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.
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