Knowledgebase: Claim Rejections
Attachment Control Number (AT003)
Posted by Will Morrow, Last modified by Charmagne Williams on 12 May 2017 03:03 PM
Rejection: Missing/Invalid Attachment Control Number (AT003)

What happened: Attachment Control Number in the Additional Fields section is either incorrect or missing.

Resolution: Attachment Control Number is a required field. Verify the information in that section of the Additional Fields and update the claim.