Remittance Advice · Payment-time (remittance)
OHIP explanatory code G1
Other critical/comprehensive care already paid
What G1 means
The Ministry of Health’s official wording for G1 is: “Other critical/comprehensive care already paid.”
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 G1
OHIP shows this was already paid - confirm it is not a true duplicate; file a Remittance Advice Inquiry with detail if the service was genuinely separate.
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
- F3Previous attempted reductions (open or closed) allowed at 85%
- F5Two weeks aftercare included in fracture fee
- F6Allowed as Minor/Partial Assessment
- FFAdditional payment for the claim shown
- GFCoverage lapsed-bill patient for future claims
- H1Admission assessment or Emergency department assessment already paid
- H2Allowed as subsequent visit - initial visit previously claimed
- H3Maximum fee allowed per week after 5th week
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Code meaning per Ontario Ministry of Health — Remittance Advice Explanatory Codes / Messages (March 2026). The suggested action is general information for Ontario physicians, not billing, legal, or tax advice — codes and rules change, so verify against the current Ministry of Health documents before relying on a claim.