Billing code
G555A — Ambulatory Eeg Monitoring - Professional Component
Ambulatory EEG interpretation
Bill G555 for personally interpreting 12 to 24 hours of ambulatory EEG monitoring; the technical part is G554.
Watch for: No EEG service is payable with an overnight or daytime sleep study.
| Provider | Specialist | Assistant | Anaesthetist | Non-anaesthetist |
|---|---|---|---|---|
| $120.00 | $0.00 | $0.00 | $0.00 | $0.00 |
- Code
- G555A
- Description
- Ambulatory Eeg Monitoring - Professional Component
- FHO+ basket
- Not in the FHO+ base rate basket (Schedule 2 or 2B).
- Effective date
- Apr 1, 2025
- Termination date
- No end date
Explanation
Updated October 26, 2026
Professional component of ambulatory EEG monitoring over 12 to 24 hours.
What it covers
Ambulatory EEG monitoring includes 12 to 24 hours of EEG monitoring. The fee includes EEG electrodes and the other physiological parameters needed for an electrographic diagnosis (J85).
The technical component is G554 (J85).
Billing rules
- No EEG service is payable with an overnight or daytime sleep study (J898, J899, J990, J896, J897, J895, J890, J889, J893 or J894) (J84).
- You must personally interpret the results. Supervision and monitoring may be delegated to another physician (J1).
Often billed with
- G554 ambulatory EEG technical component (J85).
Related codes: G554, G545, G546, G415, G544
Source: Schedule of Benefits (July 1, 2026), Diagnostic and Therapeutic Procedures, Neurology, Electroencephalography, page J85.
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