Z542 – Intubation of bile duct for obstruction
OHIP Psychiatric Code — DIGESTIVE SYSTEM SURGICAL PROCEDURES · Schedule of Benefits
Intubation of bile duct for obstruction. This is a surgical procedure listed under the Digestive System, Biliary Tract, Incision section of the Schedule.
When to Use
- Use Z542 for the specific surgical intubation of the bile duct when performed to relieve an obstruction.
- Choose Z542 when the procedure is distinct and not bundled into a more comprehensive biliary surgery, such as a cholecystectomy or complex duct exploration.
Common Pitfalls
- Do not bill Z542 in addition to a cholangiogram during abdominal surgery, as the Schedule explicitly states no additional fee is payable for the latter.
- Avoid using Z542 for diagnostic ERCP procedures; ensure the clinical documentation clearly supports the 'obstruction' indication to prevent audit recovery.
Billing Tips
- If an assistant is required for this procedure, you must provide a letter justifying the necessity to the medical consultant, as Z542 does not have pre-assigned basic units for surgical assistants.
Effective: April 1, 2025
S. Digestive System Surgical Procedures
DIGESTIVE SYSTEM SURGICAL PROCEDURES
Surgical
Digestive System Surgical Procedures
- If claiming for a surgical assistant where no basic units are listed, a letter from the surgeon outlining the reason the assistant was required must be submitted for authorization by a medical consultant. See . - If claiming anaesthesia units by comparison, supporting documentation for the comparable procedure may be required. See . - For any time-based fee (anaesthesia, assistant), the start and end times of the service must be recorded in the patient's medical record. See .
Unless otherwise specified, there is no additional fee payable for cholangiogram during abdominal surgery.
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