< Billing codes

Billing code

J336C — Oxygen Saturation - With Single Blind Assessment Of Exercise On Room Air And With Supplemental Oxygen

Home oxygen eligibility oximetry

Bill J336 for single-blind exercise oximetry on room air and oxygen to assess eligibility for the Ontario Home Oxygen Program.

Watch for: Only for Ontario Home Oxygen Program eligibility, and not payable with J332 or J334.

ProviderSpecialistAssistantAnaesthetistNon-anaesthetist
$0.00$0.00$35.50$16.85$16.85
Code
J336C
Description
Oxygen Saturation - With Single Blind Assessment Of Exercise On Room Air And With Supplemental Oxygen
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

Oximetry with a single-blind exercise assessment on room air and on oxygen, to assess eligibility for the Ontario Home Oxygen Program.

What it covers

J336 is oxygen saturation with a single-blind assessment of exercise on room air and with supplemental oxygen (H6).

Billing rules

  • Only payable to evaluate whether a patient is eligible for funding under the Ontario Home Oxygen Program (H6).
  • Not payable in addition to J332 or 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).

Common rejections

  • ADH: OHIP's message is 'Cannot be billed together': J336 was billed with J332 or J334 (H6).

Related codes: J332, J334, J323, J315

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