OHIP explanatory code 36

What 36 means

The Ministry of Health’s official wording for 36 is: “OHIP records show service has been rendered by another Practitioner, Group, Lab.”

This code appears as an explanatory code on your monthly Remittance Advice (RA). It means the claim was adjudicated — paid, reduced, or refused — for the reason below. A claim already on your RA generally shouldn't be blindly resubmitted; follow the suggested action.

How to fix 36

If you provided or assessed the patient first, file a Remittance Advice Inquiry with supporting documentation.

Payment-time codes appear on the monthly Remittance Advice after adjudication. Some are informational, some explain a reduced or refused payment. Where you disagree with the outcome, the usual route is a Remittance Advice Inquiry or written inquiry — not resubmitting the same claim, which can create a duplicate.

Related codes

• 31Not a valid network service
• 32OHIP records show service(s) on this day claimed previously
• 33Approved
• 35OHIP records show this service rendered has been claimed previously (used on Pay Practitioner duplicate claims)
• 37Effective April 1, 1993 the listed benefit for this code is 0 Laboratory Medicine Services (LMS) units
• 40Service or related service allowed only once for same patient
• 41Fee Schedule Code (FSC) Billed - No Evidence in Supporting Documentation Provided
• 42FSC Billed Included in Other Procedure