Health and Human Services officials told lawmakers Thursday that Nevada’s Mental Health and Developmental Services Division is losing Medicaid money because of the way it offers and bills for services.“We’re currently underbilling Medicaid,” said Richard Whitley, Health Division director. “Historically, MHDS has not done the best possible job of billing and getting reimbursed for Medicaid.”According to documentation presented to the joint subcommittee of Ways and Means and Senate Finance, 27 percent of MHDS clients are Medicaid-eligible. But the division only recouped 13.5 percent of costs from Medicaid.That means the state should have collected $5.88 million more in revenue that, instead, …