WASHINGTON — Speaker John A. Boehner’s lawsuit against President Obama will focus on changes to the health care law that Mr. Boehner says should have been left to Congress, according to a statement issued Thursday by the speaker’s office.

By narrowly focusing the legal action on the Affordable Care Act, Mr. Boehner will sidestep the more politically problematic issue involving Mr. Obama’s executive action offering work permits for some illegal immigrants who were brought to the United States as children.

Last month, Mr. Boehner announced his intention to seek legislation allowing the House to sue the president over his use of executive actions, a reflection of charges by congressional Republicans that the president has overreached his authority. On Thursday, Mr. Boehner said the lawsuit would specifically challenge the president’s decision to delay imposing penalties on employers who do not offer health insurance to employees in compliance with the Affordable Care Act.

“The current president believes he has the power to make his own laws — at times even boasting about it,” Mr. Boehner said in his statement. “He has said that if Congress won’t make the laws he wants, he’ll go ahead and make them himself, and in the case of the employer mandate in his health care law, that’s exactly what he did.”