The ICD-10 codes in the Crosswalk are the ones that will be used in NCTracks when it is switched to ICD-10 codes on October 1. A few non-specific ICD-9 codes are not in Crosswalk — not in the NCTracks Crosswalk nor the one created by CMS. If you enter a specific ICD-9 code and don’t receive corresponding ICD-10 codes, email the NCTracks staff at NCTracks-Questioner@dhhs.nc.gov. Use this email address for all your questions regarding ICD-10 and NCTracks. NCTracks staff promises a personal answer.