LINCOLN, Neb. (AP) — A military couple is suing the Nebraska Department of Health and Human Services, accusing the agency of hiding the serious medical and mental health issues of a 6-year-old boy they adopted in 2009.

The couple adopted the boy while they were stationed at Offutt Air Force Base.

Their attorney, Sally Rasmussen of Lincoln, says Nebraska HHS told the couple that the boy “was a handful” and might have attention deficit hyperactivity disorder.

But the couple’s lawsuit says they later learned the department was aware, but didn’t tell them, that the boy had been diagnosed with severe attachment disorder and bipolar disorder.

That would violate state law requiring it to provide the medical records of children it places for adoption to adoptive parents.