Lawyers attempting to negotiate a global settlement of lawsuits brought over the opioid epidemic aren’t representing a key group: babies who have been born addicted to prescription painkillers.

That’s according to plaintiffs lawyers who have filed class actions in nine states on behalf of infants, the latest of which was filed Tuesday in New York. A coalition of nine law firms filed court papers asking a federal judge in Ohio for permission to request a separate discovery and litigation track for the baby cases.