J323by oximetry at rest, with or without O2
PULMONARY FUNCTION STUDIES · OTHER TERMS AND DEFINITIONS
No listed feeWhat this reference tells you
J323 identifies the Ontario insured service described as “by oximetry at rest, with or without O2.” The listed fee and rules are reference data; the clinical record must support the service actually performed.
Loaded billing requirements
- J323, J332, J334 or J336 are not eligible for payment unless a permanent record of the study is maintained.
Before using this code
Confirm the current Ministry publication, the patient and provider context, the date of service, and documentation supporting the claim. A searchable reference does not establish eligibility or guarantee payment.