Z852 – Removal embedded foreign body - general anaesthetic
OHIP Psychiatric Code — OCULAR SURGICAL PROCEDURES · Schedule of Benefits
This procedure involves the surgical removal of a foreign body embedded in the cornea of the eye, performed under general anaesthetic.
When to Use
- Use Z852 specifically when a corneal foreign body requires surgical removal under general anaesthetic, distinguishing it from office-based removals using topical anaesthesia.
- Use this code for pediatric patients or uncooperative adults where the depth or location of the foreign body necessitates general anaesthesia for safety and procedural success.
Common Pitfalls
- Billing Z852 when the procedure is performed under local or topical anaesthesia, which is a common audit trigger for inappropriate use of general anaesthetic codes.
- Failing to document the specific requirement for general anaesthesia in the operative report, which is essential to justify the use of Z852 over standard removal codes.
Billing Tips
- Ensure the anaesthesiologist's start and end times are clearly recorded in the patient chart, as these are mandatory for the anaesthesia component of this surgical service.
- Apply relevant age-based or emergency premiums (e.g., E410 or E409) to the procedural fee if the surgery meets the specific time-of-day or urgency criteria defined in the Schedule of Benefits.
Effective: April 1, 2025
Y. Ocular and Aural Surgical Procedures
OCULAR SURGICAL PROCEDURES
Surgical
Ocular and Aural Surgical Procedures
For anaesthesia services, the anaesthesiologist must record the start and end times in the patient's medical record.
All insured services must be documented in appropriate records that establish: 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.
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