Remittance Advice · Payment-time (remittance)
OHIP explanatory code SW
Intensive Care Unit per diem code paid to another physician-MRP subsequent visit reduced to subsequent visit
What SW means
The Ministry of Health’s official wording for SW is: “Intensive Care Unit per diem code paid to another physician-MRP subsequent visit reduced to subsequent visit.”
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 SW
The fee was reduced or capped under this rule. If you believe the full amount was payable, file a Remittance Advice Inquiry with supporting detail.
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
- SEMajor pre-operative visit previously paid and admission assessment previously paid-surgery fee reduced by the admission assessment
- SFMost Responsible Physician (MRP) visit not allowed during post- operative period-surgical fee adjusted
- SNMultiple Surgical Anaesthesia. Documentation of Separate Surgeries Same Day/Same Patient Required
- SVMRP visit not allowed during post-operative period-fee reduced to subsequent visit fee
- SXICU Per Diem code Paid To Another Physician, MRP Premium Not Allowed
- T1Fee allowed according to surgery claim
- V1Allowed as repeat assessment-initial assessment previously claimed
- V2Allowed as extra patient seen in the home
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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.