Billing code
G456A — EMG/nerve conduction Schedule A (complete) – professional component
Complete EMG/nerve study, interpretation
Bill G456 for interpreting a complete nerve conduction and needle EMG study covering two or more nerves.
Watch for: Not payable with G473 the same day; your own consultation isn't payable for direct test referrals unless one is also requested.
| Provider | Specialist | Assistant | Anaesthetist | Non-anaesthetist |
|---|---|---|---|---|
| $120.00 | $0.00 | $0.00 | $0.00 | $0.00 |
- Code
- G456A
- Description
- EMG/nerve conduction Schedule A (complete) – professional component
- FHO+ basket
- Not in the FHO+ base rate basket (Schedule 2 or 2B).
- Effective date
- Apr 1, 2026
- Termination date
- No end date
Explanation
Updated October 26, 2026
Professional component of a complete nerve conduction and needle EMG study (Schedule A) on two or more nerves.
What it covers
Schedule A is the complete procedure: conduction studies on two or more nerves presumed involved in the disease, with EMG of the appropriate muscles as needed and/or detailed neuromuscular transmission studies. It includes study of normal nerve and/or the opposite side for comparison as needed (J103).
The technical component is G455 (J103).
Billing rules
- If the patient is referred directly to the EMG/nerve conduction facility for testing, a consultation or assessment by you is not payable, unless the referring provider also asks for a medically necessary consultation or assessment (J103).
- Schedules A, B, C and single fibre EMG require an intramuscular needle recording electrode. Surface EMG and other EMG techniques are not payable (J103).
- Late responses or reflexes are included if done. Keep a permanent record of the nerve conduction study in the chart (J103).
- G473 (Schedule C professional) is not payable with G456 for the same patient the same day (J104).
- You must personally interpret the results. Supervision and monitoring may be delegated to another physician (J1).
Often billed with
- G455 Schedule A technical component (J103).
Common rejections
- ADH: OHIP describes this as 'Cannot be billed together': G473 and G456 can't be paid for the same patient the same day (J104).
Related codes: G455, G457, G473, G458, G466
Source: Schedule of Benefits (July 1, 2026), Diagnostic and Therapeutic Procedures, Physical Medicine, Needle Electromyography and Nerve Conduction Studies, page J103.
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