Claim rejection codeAT3

No Patient-Physician Relationship

Assessment · General error codes

What this reference tells you

AT3 is an Error Report rejection condition. It helps identify why a claim failed initial processing so the underlying data or documentation can be reviewed.

Suggested review path

Confirm roster or relationship evidence and correct the claim type before resubmitting or appealing.

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.

Suggested review path

Before using this code

Take the code from reference to reviewed claim.