< Billing codes

Billing code

J332C — J332 With At Least Two Levels Of Supplemental O2

Oximetry with exercise or sleep

Bill J332 for oxygen saturation by oximetry at rest and exercise, or during sleep, with or without oxygen.

Watch for: Not payable with exercise tests (J315, J316), listed cardiac tests or overnight sleep studies, and J323 isn't payable with it.

Code

J332C

Description

J332 With At Least Two Levels Of Supplemental O2

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

Oxygen saturation by oximetry at rest and with exercise, or during sleep, with or without oxygen.

What it covers

J332 is oxygen saturation measured by oximetry at rest and exercise, or during sleep, with or without O2 (H6).

Oximetry at rest only is J323; J332 with at least two levels of supplemental oxygen is J334 (H6).

Billing rules

• Not payable with J315, J316, G315, G319, G111, G112, G570, G571, G582, G583, G574, G575 or any overnight sleep study (H6).
• J323 is not payable with J332 (H6).
• Not eligible for payment unless a permanent record of the study is kept (H6).
• 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).

Common rejections

• ADH: OHIP's message is 'Cannot be billed together': J332 was billed with an exercise test (J315, J316), a listed cardiac test, or an overnight sleep study (H6).

Related codes: J323, J334, J336, J315, J896

Source: Schedule of Benefits (July 1, 2026), Pulmonary Function Studies, Pulmonary Function Studies, page H6. Preamble H1–H3.

APEX checks every paid claim against the Schedule of Benefits and flags codes billed below what the visit qualified for. See how APEX works · Pricing