ICHA is a voluntary association of Catholic health and social service organizations, along with their religious sponsors and health systems. Currently over 95% of the Catholic hospitals, nursing homes, and social service agencies belong to ICHA.

As a collective witness to the mission of Jesus, the Illinois Catholic Health Association works to enhance Catholic presence and strengthen Catholic health and social service ministries primarily by fostering greater understanding, communication and collaboration among bishops, sponsoring congregations and leaders of ministry organizations in the state.

The Illinois Catholic Health Association serves as the preferred organization for convening  Catholic health and social service resources in Illinois, essential to building community among Catholic health and social service organizations and their leaders in the areas of mission, ministry, ethics, public policy, and areas affecting Catholic identity.