R537 – Tendon release (open) - wrist
OHIP Radiology Code — MUSCULOSKELETAL SYSTEM SURGICAL PROCEDURES · Schedule of Benefits
This fee code represents an open surgical procedure for the release of a tendon at the wrist. The fee is for the release of the first tendon. For each additional tendon released during the same operative session, the add-on code E571 should be claimed. This procedure is listed under the Musculoskeletal System section of the OHIP Schedule of Benefits. As a surgical service, it is eligible for surgeon (suffix A), assistant (suffix B), and anaesthetist (suffix C) claims.
When to Use
- Use R537 for the primary open surgical release of a single tendon at the wrist, such as a trigger wrist or specific tenosynovitis release.
- Use R537 in conjunction with E571 when performing an open release on two or more distinct tendons during the same operative session at the wrist.
Common Pitfalls
- Claiming R537 for percutaneous or endoscopic releases, which are not considered 'open' procedures and may be subject to audit recovery.
- Failing to document the specific number of tendons released, which is required to justify the addition of E571.
Billing Tips
- Always claim E571 as an add-on to R537 for every additional tendon released beyond the first to ensure full compensation for the operative time.
- Ensure the operative report explicitly details each tendon released to support the claim for R537 plus multiple units of E571 if applicable.
Effective: April 1, 2026
N. Musculoskeletal System Surgical Procedures
MUSCULOSKELETAL SYSTEM SURGICAL PROCEDURES
Surgical
Musculoskeletal System Surgical Procedures
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