Billing code
G873A — Botulinum Toxin Injection(s) For Spasmodic Dysphonia
Botox for spasmodic dysphonia
Bill G873 for botulinum toxin injections for spasmodic dysphonia.
Watch for: One treatment per condition every 10 weeks; for guidance, only G877 or G878 is payable.
| Provider | Specialist | Assistant | Anaesthetist | Non-anaesthetist |
|---|---|---|---|---|
| $120.00 | $0.00 | $0.00 | $0.00 | $0.00 |
- Code
- G873A
- Description
- Botulinum Toxin Injection(s) For Spasmodic Dysphonia
- 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
Botulinum toxin injection(s) for spasmodic dysphonia.
What it covers
G873 covers botulinum toxin injection(s) for spasmodic dysphonia (J51).
It is one of the insured botulinum toxin services; other indications are not insured (J51–J52).
Billing rules
- Limited to one treatment per condition per patient every 10 weeks. If more frequent treatment is needed, submit the claim for manual review with supporting documentation (J52).
- Botulinum toxin injections for indications other than those listed are not insured (J52).
- When used to find the injection site, EMG or ultrasound services other than G877 or G878 are not payable with botulinum toxin services (J52).
- Add G877 when EMG and/or ultrasound guidance is needed to find the site for one injection, or G878 for two or more injections (J51).
- A chemodenervation injection into the same muscle on the same day as botulinum toxin is insured but paid at nil (J105).
Often billed with
- G877 or G878 EMG/ultrasound guidance to find the injection site (J51).
- E543 disposable EMG hypodermic electrode outside hospital, with G877 or G878 (J51).
Common rejections
- AM1: OHIP describes this as 'Service Limit Exceeded': botulinum toxin treatments are limited to one per condition per patient every 10 weeks; more frequent treatment needs manual review with documentation (J52).
Related codes: G877, G878, E543, G871, G874
Source: Schedule of Benefits (July 1, 2026), Diagnostic and Therapeutic Procedures, Injections or Infusions, Botulinum Toxin Services, page J51. Payment rules J52.
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