Ontario code lookup
Claim rejection codeEQN

Registration Usage Error on Service Date

Eligibility · General error codes

What this reference tells you

EQN is an Error Report rejection condition. It helps identify why a claim failed initial processing so the underlying data or documentation can be reviewed.

Before using this code

Confirm the current Ministry publication, the patient and provider context, the date of service, and documentation supporting the claim. A searchable reference does not establish eligibility or guarantee payment.

Need more than a lookup?

Take the code from reference to reviewed claim.

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