Allow E405A-Hospital Complexity Modifier payment with extra unit anaesthesiology codes effective December 1 2020.

To: Physicians, Hospitals, Clinics and Laboratories
Category: Physician Services
Written by: Health Services Branch, Ministry of Health
Date issued: December 14, 2020


Further to INFOBulletin 4758 titled ‘Temporary Fees for Identified AGMP Procedures-COVID-19-Hospital Physician Compensation’ and INFOBulletin 201105 titled ‘COVID-19 Hospital Physician Compensation: E405A Changes’ the Ministry of Health (ministry) implemented temporary payments for specified physician services provided in hospital as a result of COVID-19.

Fee Schedule Code (FSC) E405A: COVID Hospital Complexity Modifier was implemented on June 1, 2020 with an effective date of April 3, 2020.

An issue occurred during the implementation of this FSC where E405A was not paying with some anaesthesiology extra unit fee codes.

System solution to pay anaesthesiology fee codes

Please Note: No action is required by physicians.

Effective December 1, 2020, a system solution has been implemented to calculate the amount for the E405A premium when billed with one or more anaesthesiology extra unit fee codes (listed below). The E405A premium will pay at 30% of the fee paid (fee approved for shadow billed claims) for service dates between April 3, 2020 to July 31, 2020.

The eligible anaesthesiology extra unit fee codes are as follows:



Patient with body mass index (BMI) > 40.




Patient in prone position during surgery.




Patient who is known to have malignant hyperthermia or there is a strong suspicion of susceptibility, and the anaesthetic requires full malignant hyperthermia set up and management.




ASA V – moribund patient not expected to live 24 hours with or without operation.




ASA IV – patient with incapacitating systemic disease that is a constant threat to life.




ASA E – patient undergoing anaesthesia for emergency surgery which commences within 24 hours of operating room booking, to E022C, E017C or E016C.




Premature newborn less than 37 weeks gestational age.




ASA III - patient with severe systemic disease limiting activity but not incapacitating.




Patient in sitting position during surgery, greater than 60 degrees upright.




Unanticipated massive transfusion – transfusion of at least one blood volume of red blood cells.


A (MADJ) will be run to adjust previously su bmitted E405A claims that paid at $0. This is tentatively scheduled for the February 2021 Remittance Advice (RA). Further details relating to the MADJ will be detailed in a future INFOBulletin.

Please Note: No action is required by physicians.


E405A; COVID-19; Hospital Complexity; ASA; premium

For more information

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Schedule of Benefits for Physician Services

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Please review the Health Insurance Act

This bulletin is a general summary provided for information purposes only. Physicians are directed to review the Health Insurance Act, Regulation 552, and the schedules under that regulation, for the complete text of the provisions. You can access this information at In the event of a conflict or inconsistency between this bulletin and the applicable legislation and/or regulations, the legislation and/or regulations prevail.