Medi-Cal is basically a benefits program for which you can qualify in a few different ways. These are referred to as eligibility categories. For instance, SSI-Linked Medi-Cal is an eligibility category which allows individuals who qualify for SSI to automatically qualify for Medi-Cal benefits. There are more than 90 eligibility categories, each with its own rules and requirements. Once you meet the requirements of any eligibility category, you are considered eligible for either full or partial-scope Medi-Cal.