Remittance Advice · Payment-time (remittance)
OHIP explanatory code DS
Not allowed-mutually exclusive code billed
What DS means
The Ministry of Health’s official wording for DS is: “Not allowed-mutually exclusive code billed.”
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 DS
This explains a payment adjustment. If you believe the claim was billed correctly, file a Remittance Advice Inquiry within the deadline; otherwise no resubmission is needed.
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
- DLAllowed as laboratory tests in private office
- DMPaid/disallowed in accordance with MOH policy regarding an Emergency Department Equivalent
- DNAllowed as pudenal block in addition to procedure-as per stated OHIP policy
- DPProcedure paid previously allowed at 50% in addition to this procedure-fee adjusted to pay the difference
- DRSelf-Referred Diagnostic Services Payable at 50%
- DTIn-patient technical fee not allowed
- DVService is included in Monthly Management Fee for Long-Term Care (LTC) patients
- DWProcedure paid previously not allowed in addition to monthly management. For long-term care patients-fee adjusted to pay the difference.
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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.