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J335
J335 – Antigen challenge test
OHIP Cardio-Thoracic Surgery Code — PULMONARY FUNCTION STUDIES · Schedule of Benefits
J335 is an antigen challenge test, a diagnostic procedure used to assess airway hyperresponsiveness. It has distinct technical (H) and professional (P) components. As per the general preamble (), the technical component (H) is generally only payable when the service is rendered in a hospital setting.
When to Use
- Use J335 when performing a formal bronchial provocation challenge, such as a methacholine challenge, to confirm a diagnosis of asthma in patients with suggestive symptoms but normal baseline spirometry.
- Select J335 over J333 when the clinical objective is specifically to assess airway hyperresponsiveness rather than performing routine baseline pulmonary function testing.
Common Pitfalls
- Billing J335 with the technical component (H) suffix for tests performed in a private office setting will result in automatic rejection, as the technical component is restricted to hospital-based facilities.
- Failing to document the specific antigen used and the resulting FEV1 changes can lead to recovery of funds during a Ministry audit, as the code requires evidence of the challenge procedure.
Billing Tips
- Ensure the professional component (P) is billed when interpreting the results, while the technical component (H) is billed only if you own the equipment and are operating within a hospital facility.
Provider Fee$0.00
Surgical Assistant Fee$54.80
Anaesthetist Fee$30.95
Non-Anaesthetist Fee$30.95
Effective: April 1, 2025
Category
H. Pulmonary Function Studies
Subcategory
PULMONARY FUNCTION STUDIES
Service Type
Diagnostic
Code Classes
Pulmonary Function Studies, Diagnostic and Therapeutic Procedures
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