G202 – Hyposensitisation - each injection
OHIP Diagnostic & Therapeutic Procedures Code — DIAGNOSTIC AND THERAPEUTIC PROCEDURES · Schedule of Benefits
This fee code represents a single hyposensitisation (allergy) injection. It is subject to specific limitations on the number of injections that can be billed per visit, depending on whether an assessment or the G212 service is also provided.
When to Use
- Use G202 for subsequent allergy injections when the patient does not require a formal assessment of their allergic status.
- Use G202 in conjunction with an appropriate office assessment code (e.g., A007) when the patient presents with a new, unrelated acute condition like an upper respiratory infection.
- Use G202 alongside a counselling code (e.g., K013) when the injection is administered during the same encounter, as this is a specific exception to standard OHIP billing rules.
Common Pitfalls
- Billing G202 in addition to G212 when the patient is only receiving a single injection, as G212 already includes the first injection fee.
- Attempting to bill an assessment code (e.g., A007) on the same day as G202 without a distinct, unrelated clinical reason, which will trigger a rejection or audit flag.
- Exceeding the maximum of two G202 claims per visit when an assessment is also billed, as this violates the specific daily volume restrictions.
Billing Tips
- If the patient requires a brief assessment of their allergic condition specifically, bill G212 instead of G202 to capture the assessment components within the procedure fee.
- Always ensure the clinical note clearly differentiates between the injection administration and any unrelated acute condition if you are billing an assessment code alongside G202.
Effective: April 1, 2026
J. Diagnostic and Therapeutic Procedures
DIAGNOSTIC AND THERAPEUTIC PROCEDURES
Procedure
Diagnostic and Therapeutic Procedures
If a patient presents for an allergy injection and has an acute infectious condition, albeit of the respiratory system, or some other unrelated condition which would have otherwise required a separate office visit, the physician is entitled to claim the appropriate assessment fee as well as the injection fee.
If a patient requires a brief assessment of his allergic condition as well as the allergy injection, the physician should claim the injection and the basic fee, in which case the specific elements of the service include those of an assessment (see General Preamble ).
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