What is OHIP billing code Z457?

Z457 is "Surgical removal or repair of tunneled central venous catheter", an OHIP Psychiatric code from the Ontario Schedule of Benefits (Physician Services).

How much does Z457 pay?

The current OHIP fee for Z457 is $60.00, effective 2026-04-01, per the Ontario Schedule of Benefits.

How do I bill Z457 to OHIP?

Z457 is submitted through OHIP's MCEDT claims system, either directly or via billing software. SnapBill validates Z457 claims against the Schedule of Benefits rules before submission.

What codes are related to Z457?

Codes related to Z457 in the Schedule of Benefits include Z456, Z446, Z447, E684.

All codes

Z457

Z457 – Surgical removal or repair of tunneled central venous catheter

OHIP Psychiatric Code — DIAGNOSTIC AND THERAPEUTIC PROCEDURES · Schedule of Benefits

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Surgical removal or repair of implanted central venous catheter. This is a surgical procedure and requires suffix A for the surgeon, B for an assistant, and C for the anaesthesiologist. Assistant and anaesthesia services are calculated based on basic and time units.

When to Use

Use Z457 for the formal surgical removal of a tunneled central venous catheter (e.g., Hickman or Broviac) that requires a skin incision and dissection, rather than a simple bedside pull.
Use this code for the surgical repair of a damaged external segment of a tunneled catheter when the procedure involves a formal repair kit or surgical intervention.

Common Pitfalls

Billing Z457 for a simple non-tunneled central line removal, which is typically included in the global fee of the initial insertion or a standard office visit.
Failing to include the required suffix (A, B, or C) for the specific role, which will result in an automatic rejection of the claim.
Attempting to bill Z457 alongside Z456 (insertion) for the same site on the same day without clear documentation of medical necessity for both, as this often triggers an audit.

Billing Tips

When billing for a surgical assistant (suffix B), ensure you reference the anaesthesia unit value (6 units) as the basis for calculation, and be prepared to submit a letter of justification if the claim is flagged for manual review.
Always verify if the procedure was performed in an emergency setting to determine if E020C is applicable to the anaesthesiologist's claim.

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Provider Fee$60.00

Anaesthetist Fee$95.76

Non-Anaesthetist Fee$95.76

Effective: April 1, 2026

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