G212 – Hyposensitisation - when sole reason for visit
OHIP Diagnostic & Therapeutic Procedures Code — DIAGNOSTIC AND THERAPEUTIC PROCEDURES · Schedule of Benefits
This service is for a hyposensitization (allergy shot) visit when it is the sole reason for the encounter. The fee for G212 includes the first injection. Per the note on , if a patient requires a brief assessment of their allergic condition as well as the allergy injection, the specific elements of the service include those of an assessment (see General Preamble ). If a patient presents for an allergy injection and also has an acute infectious condition or other unrelated condition requiring a separate office visit, the physician should claim the appropriate assessment fee plus the injection fee (G202) instead of G212.
When to Use
- Use G212 when the patient presents exclusively for a scheduled hyposensitization injection without any additional clinical assessment or unrelated medical concerns.
- Use G212 when the injection is the sole reason for the visit, even if a brief review of the patient's allergic status is performed as part of the procedure's inherent requirements.
Common Pitfalls
- Billing G212 in combination with an assessment code (e.g., A007) is a common error; if an assessment is performed for an unrelated condition, you must bill the assessment plus G202 instead.
- Attempting to claim a special visit premium with G212 will result in rejection, as this is considered an elective, scheduled procedure.
Billing Tips
- If the patient requires two injections during the same visit, claim G212 for the first injection and G202 for the second.
Effective: April 1, 2026
J. Diagnostic and Therapeutic Procedures
DIAGNOSTIC AND THERAPEUTIC PROCEDURES
Procedure
Diagnostic and Therapeutic Procedures
In accordance with , all insured services must be documented in the medical record to establish that the service was provided, is the service for which the account is submitted, and was medically necessary.
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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