What is OHIP billing code J323?

J323 is "Oxygen saturation by oximetry at rest", an OHIP Pulmonary Function Studies code from the Ontario Schedule of Benefits (Physician Services).

How do I bill J323 to OHIP?

J323 is submitted through OHIP's MCEDT claims system, either directly or via billing software. SnapBill validates J323 claims against the Schedule of Benefits rules before submission.

What codes are related to J323?

Codes related to J323 in the Schedule of Benefits include J332, J334, J336.

All codes

J323

J323 – Oxygen saturation by oximetry at rest

OHIP Pulmonary Function Studies Code — PULMONARY FUNCTION STUDIES · Schedule of Benefits

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Performs oxygen saturation measurement by oximetry while the patient is at rest, with or without the use of supplemental oxygen (O₂). This fee code represents the technical component (H fee) of the service, valued at $4.20. The professional component (P fee) is not payable. For payment eligibility, a permanent record of the study must be maintained in the patient's chart. Refer to for a list of services that are not payable with J323, including other oximetry tests and sleep studies.

Referral requiredFrom: Physician, NursePractitioner, OralMaxillofacialSurgeon

A permanent record of the study must be maintained.

J332 J334 J336

1. J323 is not eligible for payment when rendered with J332, J315, J316, G315, G319, G111, G112, G570, G571, G582, G583, G574, G575 or any overnight sleep study.

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