Remittance Advice · Payment-time (remittance)
OHIP explanatory code L3
Not allowed in addition to other laboratory procedure(s)
What L3 means
The Ministry of Health’s official wording for L3 is: “Not allowed in addition to other laboratory procedure(s).”
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 L3
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
- J8Coverage Not In Effect; Services Provided On Or After The 20th Of This Month Will Not Be Paid Unless Subscriber Takes Corrective Action
- J9Coverage Reinstated. Submit Claims Routinely
- L1This service paid to another laboratory
- L2Not allowed to medical Laboratory Director
- L4Not allowed to attending physicians
- L5Not allowed in addition to other procedure paid to another laboratory
- L6Procedure paid previously to another laboratory, not allowed in addition this procedure-fee adjusted to pay the difference
- L7Not allowed-referred specimen
Tired of decoding rejections by hand?
MedConcierge explains every rejection on your reports and helps you fix and resubmit in clicks. OHIP billing built by physicians, for physicians.
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.