Home › Forums › BILLERS’ BOARD › denial code This topic has 0 replies, 1 voice, and was last updated 3 years, 8 months ago by Missouri Public Health Association. Viewing 1 post (of 1 total) Author Posts July 22, 2021 at 11:50 am #12097 Missouri Public Health AssociationKeymaster Mo health Net denial code N55, anyone know how to fix this? Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In