Z902 – Probing and dilation of duct, initial or repeat - Local anaesthetic - unilateral
OHIP Psychiatric Code — OCULAR SURGICAL PROCEDURES · Schedule of Benefits
This service is for the initial or repeat probing and dilation of the nasolacrimal duct on one side, performed under local anaesthetic. It is listed in the Schedule under manipulation of the lacrimal tract.
When to Use
- Use Z902 for the office-based management of a blocked nasolacrimal duct in a patient where topical or local infiltration anesthesia is sufficient.
- Use this code for repeat procedures when the initial probing fails to resolve the epiphora or dacryocystitis.
Common Pitfalls
- Do not bill Z902 in conjunction with a general assessment code (like A007) unless the procedure is the primary reason for the visit and the assessment is medically necessary for a separate condition.
- Avoid using Z902 if the procedure is performed under general anesthesia or sedation, as this code specifically mandates local anesthesia; use the appropriate surgical facility codes instead.
- Billing Z902 bilaterally is a common error; since the code is defined as unilateral, you must bill it twice with the appropriate diagnostic codes or laterality modifiers if both ducts are treated.
Billing Tips
- Ensure you apply the correct age-based surgical premium (e.g., AGE_PREMIUM_UNDER_5Y) to the Z902 fee, as these are frequently missed for pediatric patients.
Effective: April 1, 2025
Y. Ocular and Aural Surgical Procedures
OCULAR SURGICAL PROCEDURES
Procedure
Ocular and Aural Surgical Procedures
In accordance with the Health Insurance Act and regulations, the medical record must establish that: 1. an insured service was provided; 2. the service for which the account is submitted is the service that was rendered; and 3. the service was medically necessary.
Probing and dilation of duct, initial or repeat
Local anaesthetic
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