When the House narrowly passed the health care reform bill on Saturday night, it came with a steep price for women’s reproductive rights. Under pressure from anti-abortion Democrats and the United States Conference of Catholic Bishops, lawmakers added language that would prevent millions of Americans from buying insurance that covers abortions — even if they use their own money.

The restrictions would fall on women eligible to buy coverage on new health insurance exchanges. They are a sharp departure from current practice, an infringement of a woman’s right to get a legal medical procedure and an unjustified intrusion by Congress into decisions best made by patients and doctors.

The anti-abortion Democrats behind this coup insisted that they were simply...