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G418 – Routine EEG - professional component (16 - 21 channel EEG)

OHIP Diagnostic and Therapeutic Procedures Code — DIAGNOSTIC AND THERAPEUTIC PROCEDURES · Schedule of Benefits

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This service is the professional component for a routine Electroencephalogram (EEG) that uses 16 to 21 channels. A routine EEG is defined on page as consisting of at least a twenty-minute recording with referential and bipolar montages and at least eight channels (except in neonates). The procedure should include hyperventilation and photic stimulation in all cases where clinically possible.
Referral requiredFrom: Physician, NursePractitioner, OralMaxillofacialSurgeon
The EEG recording must be at least twenty minutes long.
Recording must include referential and bipolar montages.
Hyperventilation and photic stimulation should be performed where clinically possible.
The use of 16 to 21 channels must be documented to differentiate from G415.
G414G415G541G543G496

1. The amount payable for a sleep-deprived/induced EEG, or an EEG with time-locked video recording that does not meet the above requirements will be reduced to that for a routine EEG fees (i.e. G414 and G415/G418).

2. G414 is not eligible for payment with G541.

3. Only one of G415, G418, G543 or G496 are eligible for payment per day.

4. EEG services (i.e. G414, G415, G418, G496, G541, G543, G540, G545, G542, G546, G554, G555, or G544) are not eligible for payment with any overnight or daytime sleep study (i.e. J898, J899, J990, J896, J897, J895, J890, J889, J893 or J894).

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