E011 – Patient in prone position during surgery - anaesthesia premium
OHIP Surgical Assists Code · Schedule of Benefits
An extra unit premium payable to an anaesthesiologist when the patient is placed in the prone position during a surgical procedure. This fee is paid in addition to the basic and time units of the anaesthesia service.
When to Use
- Use E011C for posterior spinal instrumentation or laminectomy procedures where the patient is maintained in a prone position for the duration of the surgery.
- Apply this code for prone-position neurosurgical or colorectal procedures that require specialized airway management and positioning equipment.
Common Pitfalls
- Failing to include the 'C' suffix (E011C) will result in an automatic rejection, as the system requires the specific suffix for anaesthesia premiums.
- Billing E011C for procedures performed in the lateral decubitus position, which does not qualify for this specific prone-position premium.
Billing Tips
- Ensure E011C is included in the total unit calculation before applying after-hours premiums like E400C or E401C, as these percentages are calculated on the sum of basic, time, and extra units.
Effective: April 1, 2026
Anaesthesia
Premium
The amount payable for the anaesthesia service is calculated by adding the number of basic units, time units, and extra units (like E011C), then multiplying the total by the anaesthesiologist unit fee ($15.96).
Time units are calculated as: 1 unit per 15 min (1st hour), 2 units per 15 min (1-1.5 hours), and 3 units per 15 min (after 1.5 hours).
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