All OHIP error & explanatory codes

Error report · Referral & provider

OHIP error code EQ5

Lab inactive on Service date

What EQ5 means

The Ministry of Health’s official wording for EQ5 is: “Lab inactive on Service date.”

This code appears on your Claims Error Report (downloaded through MCEDT). It means the claim was rejected at submission and was never adjudicated for payment — fix the issue below and resubmit the claim.

How to fix EQ5

The lab is inactive for the service date - confirm the lab's active registration with the Ministry, then resubmit.

Referral and provider codes relate to the referring or rendering provider number, specialty restrictions, or referral requirements attached to the fee code. Verify the provider numbers on the claim and whether the code requires a valid referral.

Related codes

Code meaning per Ontario Ministry of Health — Error Report Rejection Conditions / Error Codes (December 2022). 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.