Attention Section 18, 21, and 29 Providers: Evergreen Users Billing 837 Claims
With the new Evergreen system rollout, previous authorizations with a prefix of “EIS” have been replaced by new authorizations with a prefix of “LTS.”
Our current Electronic Data Interchange (EDI) 837 file was developed with a max of 15 characters for authorization IDs. The new LTS authorization IDs have a max of 17 characters. When submitting 837 claims, providers are reporting that the last two characters of the authorization ID are getting cut off, resulting in denied claims with the “UM not found” edit.