All codes
Z357
Z357 – Thoracic window creation
OHIP Psychiatric Code — RESPIRATORY SURGICAL PROCEDURES · Schedule of Benefits
Creation of a thoracic window. As this procedure is designated with a 'Z' prefix, it is considered an Independent Operative Procedure (IOP) and is subject to the specific payment rules outlined in the Surgical Preamble (:). These rules address billing for pre-operative assessments and multiple procedures.
When to Use
- Use Z357 for the creation of a thoracic window in patients requiring chronic drainage or access to the pleural space.
- Use this code when the procedure is performed as a standalone surgical intervention, distinct from a major thoracic resection or thoracotomy.
Common Pitfalls
- Billing a consultation or major assessment on the same day as Z357 will result in a rejection, as Z357 is an Independent Operative Procedure (IOP) that restricts same-day assessment billing.
- Failing to account for the 85% reduction rule when Z357 is performed alongside other surgical procedures under the same anaesthesia, as the major procedure must be billed at 100% and subsequent procedures at 85%.
Billing Tips
- If you performed a major pre-operative assessment within the previous 12 months, you are only eligible to bill a minor or partial assessment on the day of the procedure.
Provider Fee$228.25
Surgical Assistant Fee$75.06
Anaesthetist Fee$108.43
Non-Anaesthetist Fee$108.43
Effective: April 1, 2025
Category
P. Respiratory Surgical Procedures
Subcategory
RESPIRATORY SURGICAL PROCEDURES
Service Type
Surgical
Code Classes
Respiratory Surgical Procedures
This service is an Independent Operative Procedure (IOP).
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