This dataset contains data pertaining to the full scope expansion of the Adult Medi-Cal population, regardless of immigration status, within three (3) different age groups, each of the age groups is a result of different California legislation. The different age groups are identified below as well as the Senate or Assembly Bill citation for each. Note: Counties with zero individuals enrolled during a reporting period are not included in the dataset.

• Age 19-25 Young Adult Expansion Population: The datasets include the monthly count of individuals ages 19 through 25, by county, receiving full scope Medi-Cal benefits. The counts reflect the total number of eligible individuals enrolled during the month. California provides full scope Medi-Cal benefits to young adults ages 19 through 25, regardless of immigration status. Lawfully present individuals ages 21 through 25, who are not in a pregnancy aid code, are included in this count. Individuals in the dataset are eligible for federal financial participation for their emergency and pregnancy-related services. The Young Adult Expansion program was implemented January 1, 2020, pursuant to Senate Bill 104 (Chapter 67, Statutes of 2019), California Welfare and Institutions Code Section 14007.8.

• Age 26-49 Adult Expansion Population: The datasets include the monthly count of individuals 26-49 years of age, by county, receiving full scope Medi-Cal benefits. The counts reflect the total number of eligible individuals enrolled during the month. California provides full scope Medi-Cal benefits to adults 26-49 years of age, regardless of immigration status. Lawfully present individuals 26-49 years of age, who are not in a pregnancy aid code, are included in this count. Individuals in the dataset are eligible for federal financial participation for their emergency and pregnancy-related services. The Age 26-49 Adult Expansion program was implemented January 1, 2024, pursuant to Senate Bill (SB) 184 (Chapter 47, Statutes of 2022), California Welfare and Institutions Code Section 14007.8.

• Age 50 and over Older Adult Expansion Population: The datasets include the monthly count of individuals 50 years of age or older, by county, receiving full scope Medi-Cal benefits. The counts reflect the total number of eligible individuals enrolled during the month. California provides full scope Medi-Cal benefits to adults 50 years of age or older, regardless of immigration status. Lawfully present individuals 50 years of age or older, who are not in a pregnancy aid code, are included in this count. Individuals in the dataset are eligible for federal financial participation for their emergency and pregnancy-related services. The Older Adult Expansion program was implemented May 1, 2022, pursuant to Assembly Bill (AB) 133 (Chapter 143, Statutes of 2021), California Welfare and Institutions Code Section 14007.8.