OHIP Remittance Advice code HM
Invalid master number used on date of service
Ontario Ministry of Health, Remittance Advice Explanatory Codes
Where you’ll see it
On your Remittance Advice. The claim was assessed, and this explanatory code says how it was paid, reduced or refused. The Remittance Advice arrives monthly, in the first week.
A provider or registration issue
OHIP's records for the billing or referring provider, group or facility don't allow this claim: registration, specialty, or eligibility for the code. This is fixed with OHIP's registration records, not by re-coding the claim.
For a claim already on your Remittance Advice, follow the ministry's instruction in the description. That is either a corrected resubmission or a Remittance Advice Inquiry (RAI), and both are still subject to the three-month limit from the date of service.
Our summary is a guide, not a ruling. The ministry’s wording and the current Schedule of Benefits are what OHIP applies. See OHIP Error Report vs Remittance Advice: reading the codes for how the two reports differ.
Related Remittance Advice codes
- 45 · Specialty code restriction on Fee Schedule Code
- EP · This payment is an adjustment of an earlier account due to provider registration update
- I2 · Service is globally funded
- I3 · Fee Schedule Code is not on the IHF (Independent Health Facility) licence profile for the date specified
- I5 · Service is globally funded and Fee Schedule Code is not on IHF licence profile
- I7 · Claim date does not match patient enrolment date
- I8 · Confirmation not received
- I9 · Payment not applicable/expired