When you prepare for a fair hearing and obtain an evidence packet, and in some other instances, you obtain screenshots from the eMedNY system - the computer system that stores Medicaid eligibility information, which providers use to look up eligibility of their patients. Local Medicaid offices or the NYSofHealth enter these codes into the system.
Here are a few references that might shed light on what some of these codes mean:
Down the road we hope to post more helpful guides to understanding the most common eligibility codes.