"Gateway to Work" is billed as a community engagement opportunity to help connect people with better employment opportunities. But some worry the changes will result in Hoosiers losing health insurance.

The state's Medicaid program, called the Healthy Indiana Plan, requires members to submit paperwork to the state every 12 months to verify their eligibility for Medicaid.

The most recent national data show the state holding at 8 percent of Hoosiers without medical insurance.

Kentucky became the first state to require work as a condition for receiving Medicaid coverage in January. Indiana quickly followed suit.

Last month Indiana became the second state to receive federal permission to add a work requirement to its Medicaid expansion program.

If successful, the lawsuit could mean the end of federal support for Indiana's Medicaid expansion, which is funded through the Affordable Care Act.

The changes are part of last week's federal authorization, which allows Indiana to continue its Healthy Indiana Plan for another three years.

Alex Azar, head of the U.S. Department of Health and Human Services, announced the federal approval Friday in Indianapolis.

The federal government has granted a one-month extension to Indiana's Medicaid program, known as the Healthy Indiana Plan, or HIP 2.0, which was set to expire this month.

On Friday, the Indiana Medicaid Drug Utilization Review Board agreed to remove prior authorizations for preferred versions of the addiction treatment medication buprenorphine.