OHIP Billing Codes

Specialty: Allergy

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Code Description Fee

All Codes

G200 Acute desensitisation, e.g. ATS, penicillin $8.65
G185 Drug(s) desensitisation - in a hospital where full cardioresuscitative equipment is readily available because a significant risk of life-threatening anaphylaxis exists. The service must be performed under direct and ongoing physician attendance. $184.95

Complete Study - 1 and 2 dimensions

G571 Professional component $96.20
G570 Technical component $118.95

COVID-19 Immunization

G593 COVID-19 vaccine $13.00


G202 Hyposensitisation - each injection $4.45
G212 Hyposensitisation - when sole reason for visit (including first injection) $9.75
G205 Insect venom desensitisation (immunotherapy) - per injection (maximum of 5 per day). In addition to G205, after the initial major assessment only, a minor or partial assessment may be claimed once per day if rendered $13.15

Ophthalmic Tests

G203 Ophthalmic tests - direct, to maximum of 3 per year - per test $1.60
G204 Ophthalmic tests - quantitative $12.40

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G201 Direct nasal tests, to a maximum of 3 per year - per test $1.60

Patch Test

G207 Bronchial provocative testing - per session, to a maximum of 6 per year $14.15
G198 Patch test - for industrial or occupational dermatoses, to a maximum of 125 per patient, per year - per test $2.39
G206 Patch test - maximum of 90 per patient, per year - per test $2.39

Physical Urticaria Challenges

G213 Physical urticaria challenges $13.80

Provocation Testing

G208 Provocation testing - per unit $21.25
G190 Serial oral or parenteral provocation testing to a food, drug or other substance when the service is rendered in a hospital, when an anaphylactic reaction is considered likely based on a documented history and the service is performed under direct and $184.95

Skin Testing

G197 Skin testing - professional component, to a maximum of 50 per year - per test $0.37
G209 Skin testing - technical component, to a maximum of 50 per year - per test $0.72

Venom Allergy Testing

G196 Hypersensitivity skin test for validated drugs or agents excluding foods and inhalants, maximum of 3 per patient per physician per 12 month period $17.00
G195 Local anaesthetic hypersensitivity skin test, maximum of 2 per patient per physician per 12 month period $17.00
G199 Venom allergy testing, maximum of 2 per patient per physician per 12 month period $40.00

The information presented on this page is general information only and is not intended as legal, financial or other professional advice. A professional advisor should be consulted regarding your specific situation. While information presented is believed to be factual and current, its accuracy is not guaranteed and it should not be regarded as a complete analysis of the subjects discussed. No endorsement of any third parties or their advice, opinions, information, products or services is expressly given or implied by RBCx or its affiliates.

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