257 Denial Code

The disposition of the claim/service is undetermined during the premium payment grace period, per Health Insurance Exchange requirements. This claim/service will be reversed and corrected when the grace period ends (due to premium payment or lack of premium payment). (Use only with Group Code OA)
Start: 11/01/2013 | Last Modified: 06/01/2014
Notes: To be used after the first month of the

Principal diagnosis code unacceptable according to Medicare Code Editor. Correct and resubmit.