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Z525
Z525 – Pneumatic dilation of oesophagus - as sole procedure
OHIP Psychiatric Code — DIGESTIVE SYSTEM SURGICAL PROCEDURES · Schedule of Benefits
The Z525 service covers the pneumatic dilation of the oesophagus, when performed as the sole procedure. This is categorized under Digestive System Surgical Procedures. As a surgical procedure, it is eligible for surgeon (A), assistant (B), and anaesthetist (C) suffixes. The fee for this service encompasses all common and constituent elements as outlined in the General Preamble of the OHIP Schedule of Benefits (e.g., , ).
When to Use
- Use Z525 for the initial pneumatic dilation of the oesophagus when performed as a standalone surgical procedure.
- Use Z525 when the procedure is performed in a hospital setting where the surgeon is the primary provider of the intervention.
Common Pitfalls
- Billing Z525 for repeat dilations during the same hospital admission, which must be claimed using Z531 instead.
- Attempting to claim Z525 in conjunction with other oesophageal procedures, as Z525 is specifically defined as a sole procedure.
- Failing to document the Injury Severity Score (ISS) when attempting to attach the E420 trauma premium to this surgical code.
Billing Tips
- Ensure that the anaesthesia fee (Z525C) is calculated using the appropriate time units as per GP93, as no specific basic units are assigned to this code.
- Verify that the surgical assistant fee (Z525B) is supported by the required documentation, as it may be subject to medical consultant review due to the lack of pre-assigned basic units.
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