Billing code
G421A — Subconjunctival Or Sub-tenons Capsule Injection
Injection under the conjunctiva
Bill G421 for an injection beneath the conjunctiva or Tenon's capsule; it is payable in addition to an assessment.
Watch for: For both eyes, add 50% of the listed fee; G700 does not apply to this code.
| Provider | Specialist | Assistant | Anaesthetist | Non-anaesthetist |
|---|---|---|---|---|
| $27.70 | $0.00 | $0.00 | $0.00 | $0.00 |
- Code
- G421A
- Description
- Subconjunctival Or Sub-tenons Capsule Injection
- 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
Subconjunctival or sub-Tenon's capsule injection. Add 50% of the fee for bilateral procedures.
What it covers
An injection beneath the conjunctiva or Tenon's capsule, listed under ophthalmology diagnostic and therapeutic procedures (J89).
Billing rules
- For bilateral procedures, add 50% of the listed fee (J89).
- D&T procedures are payable in addition to a consultation or assessment unless listed as included (J3).
- G421 is not marked (+), so G700 does not apply (J89, J3).
Often billed with
- An ophthalmology assessment (J3).
Related codes: E149, E186, E187, G435
Source: Schedule of Benefits (July 1, 2026), Diagnostic and Therapeutic Procedures, Ophthalmology, page J89.
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