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Billing code

J334C — J332 With At Least Two Levels Of Supplemental O2

Oximetry with oxygen levels

Bill J334 for oximetry at rest and exercise, or during sleep, tested with at least two levels of supplemental oxygen.

Watch for: J336 isn't payable in addition, and the study must have a permanent record.

Code

J334C

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 exercise (or sleep) tested with at least two levels of supplemental oxygen.

What it covers

J334 is J332 (oximetry at rest and exercise, or during sleep) with at least two levels of supplemental O2 (H6).

Billing rules

• J336 is not payable in addition to J334 (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).

Related codes: J332, J336, J323, J315

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

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