What is OHIP billing code Z574?

Z574 is "Removal of infected sutures from abdominal wall or re-exploration of wound for bleeding", an OHIP Psychiatric code from the Ontario Schedule of Benefits (Physician Services).

How much does Z574 pay?

The current OHIP fee for Z574 is $94.85, effective 2025-04-01, per the Ontario Schedule of Benefits.

How do I bill Z574 to OHIP?

Z574 is submitted through OHIP's MCEDT claims system, either directly or via billing software. SnapBill validates Z574 claims against the Schedule of Benefits rules before submission.

All codes

Z574

Z574 – Removal of infected sutures from abdominal wall or re-exploration of wound for bleeding

OHIP Psychiatric Code — DIGESTIVE SYSTEM SURGICAL PROCEDURES · Schedule of Benefits

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A surgical procedure involving the incision of the abdomen, peritoneum, or omentum for the purpose of removing infected sutures from the abdominal wall or for the re-exploration of a wound to control bleeding. This service must be performed under general anaesthetic.

When to Use

Use Z574 for the surgical re-exploration of an abdominal incision specifically to evacuate a hematoma or control active bleeding post-operatively.
Use Z574 for the surgical removal of deep-seated infected sutures or foreign bodies within the abdominal wall that require formal incision and general anaesthesia.

Common Pitfalls

Do not bill Z574 for simple bedside suture removal or superficial wound care; the code explicitly requires the procedure to be performed under general anaesthetic.
Avoid billing Z574 for routine wound debridement; this code is specific to re-exploration for bleeding or removal of infected sutures, not general infection management.
Failure to document the requirement for general anaesthesia in the operative report is a common cause for audit recovery, as this is a mandatory condition for this code.

Billing Tips

Ensure the operative report clearly distinguishes the re-exploration from the original surgery to justify the necessity of the procedure and avoid claims of 'unbundling' or duplicate billing.
If the procedure is performed after hours, ensure you append the appropriate E-series premium (E409 or E410) to the Z574 claim to maximize the procedural fee.

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Provider Fee$94.85

Surgical Assistant Fee$75.06

Anaesthetist Fee$108.43

Non-Anaesthetist Fee$108.43

Effective: April 1, 2025

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