Gov. Mitch Daniels of Indiana said Friday that he would sign a bill cutting off Medicaid financing for Planned Parenthood, a move that lawmakers in several states have begun pondering as a new approach in the battle over abortion. Indiana becomes the first state to go forward.

Abortion rights supporters condemned the decision, saying it would leave 22,000 poor residents of Indiana, who use Planned Parenthood’s 28 health facilities in the state, with nowhere to go for a range of women’s services, from breast cancer screening to birth control. Planned Parenthood of Indiana said it would file an injunction to block the measure from taking effect. But abortion opponents said the move merely guarded against sending tax dollars to facilities that perform abortions, and said women on Medicaid still had plenty of health facilities available to them all over Indiana.

“Any organization affected by this provision can resume receiving taxpayer dollars immediately by ceasing or separating its operations that perform abortions,” Mr. Daniels said in a statement. Federal law prohibits Medicaid money from being used to pay for abortions except in cases of rape, a threat to the life of a mother or incest. Planned Parenthood says Medicaid dollars go toward paying for items like annual exams, birth control and breast cancer screening.

Indiana’s bill comes as Mr. Daniels, a Republican in a state where Republicans last fall gained control of both chambers of the legislature, is expected to announce a decision soon about running for president in 2012.