< Billing codes

Billing code

G202A — Allergy inj. (1 or more) with visit

Allergy injection

Bill G202 per allergy hyposensitisation injection given with a visit, or as the one extra injection after G212.

Watch for: Maximum 2 G202 with a payable assessment, and only 1 extra on top of G212.

Code

G202A

Description

Allergy inj. (1 or more) with visit

FHO+ basket

Covered by the FHO+ base rate payment for enrolled patients, and shadow billed at 30% (50% for Schedule 2B procedures).

Effective date

Apr 1, 2026

Termination date

No end date

Explanation

Updated October 26, 2026

Allergy hyposensitisation injection, billed per injection with a visit or as the extra injection after G212.

What it covers

G202 is a hyposensitisation (allergy) injection, billed for each injection (J4). When the injection is the sole reason for the visit, bill G212, which includes the first injection (J4).

If a patient comes for an allergy injection and also has an acute infection or another unrelated problem that would otherwise need a separate visit, you may bill the appropriate assessment as well as the injection (J4).

Billing rules

• Maximum 2 G202 when an assessment is payable for the same visit (J4).
• Maximum 1 G202 in addition to the injection included in G212 on a sole-reason visit (J4).
• G202 is not marked (+), so the G700 premium does not apply (J4).
• Insect venom immunotherapy is billed as G205, per injection, maximum 5 per day (J4).
• Payable on the same day as a counselling service by the same physician (GP58).
• FHO: a Schedule 2 core (in-basket) service (Agreement p.76).

Often billed with

• G212 on an injection-only visit, with one extra G202 for a second injection (J4).
• An assessment for an unrelated problem treated at the injection visit (J4).

Common rejections

• EQ2: The specialty code on the claim isn't one the physician has registered and active with the Ministry on the service date; check the specialty set up in your billing software.
• EH2: The health card version code on the claim doesn't match OHIP's record, often because the patient has a newer card; get the current version code and resubmit.
• VJ7: OHIP received the claim more than three months after the service date, so it was rejected as stale-dated (GP9).
• A3H: G202 is capped at 2 per visit with an assessment and 1 extra with G212 (J4), so billing more injections on the line rejects.
• A36: OHIP describes this as 'Claimed by Other Practitioner': another physician has already been paid for this service for the patient.

Related codes: G212, G205, G209, G197, G200

Source: Schedule of Benefits (July 1, 2026), Diagnostic and Therapeutic Procedures, Allergy — Hyposensitisation, page J4

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