What are the billing rules for J330C?

Technical component (H, suffix B) is paid only at a hospital or a hospital's approved off-site premises; outside hospital only the professional component (P, suffix C) is billable (H1, H3). Each test with its own code is specific and must be ordered individually (H3). The interpretation must be done personally by the physician who claims the professional component; supervision and monitoring may be delegated to another physician (H1).

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Billing code

J330C — Assessment Of Exercise Induced Asthma (workload Sufficient To Achieve Heart Rate 85% Of Predicted Maximum; Performance Of J301 Or J304 Before Exercise And 5-10 Minutes Post Exercise)

Q: What is OHIP billing code J330C?

Exercise-induced asthma test: exercise to 85% of predicted maximum heart rate with spirometry before and 5–10 minutes after.

Exercise-induced asthma test

Bill J330 for exercise to 85% of predicted maximum heart rate with spirometry before and 5 to 10 minutes after.

Watch for: Outside a hospital only the professional component (suffix C) is billable; not payable for routine pre-operative screening before non-thoracic surgery.

Provider	Specialist	Assistant	Anaesthetist	Non-anaesthetist
$0.00	$0.00	$38.75	$27.25	$27.25

Code: J330C
Description: Assessment Of Exercise Induced Asthma (workload Sufficient To Achieve Heart Rate 85% Of Predicted Maximum; Performance Of J301 Or J304 Before Exercise And 5-10 Minutes Post Exercise)
FHO+ basket: Not in the FHO+ base rate basket (Schedule 2 or 2B).
Effective date: Apr 1, 2026
Termination date: No end date

Explanation

Updated October 26, 2026

Exercise-induced asthma test: exercise to 85% of predicted maximum heart rate with spirometry before and 5–10 minutes after.

What it covers

J330 assesses exercise-induced asthma. The workload must be enough to reach 85% of predicted maximum heart rate, with J301 or J304 performed before exercise and 5–10 minutes after (H5).

Billing rules

Technical component (H, suffix B) is paid only at a hospital or a hospital's approved off-site premises; outside hospital only the professional component (P, suffix C) is billable (H1, H3).
Each test with its own code is specific and must be ordered individually (H3).
The interpretation must be done personally by the physician who claims the professional component; supervision and monitoring may be delegated to another physician (H1).
Not payable for routine pre-operative screening before non-thoracic surgery, unless needed for respiratory diagnosis, anaesthetic decisions or optimizing respiratory disease before surgery (H3).

Related codes: J301, J304, J333, J315

Source: Schedule of Benefits (July 1, 2026), Pulmonary Function Studies, Pulmonary Function Studies, page H5. Preamble H1–H3.

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