O43.9Non-Billable (Header)Unspecified placental disorderChild CodesO43.90Unspecified placental disorder, unspecified trimesterO43.91Unspecified placental disorder, first trimesterO43.92Unspecified placental disorder, second trimesterO43.93Unspecified placental disorder, third trimesterCode Hierarchy└O43Placental disorders└O43.9Unspecified placental disorder└O43.9Unspecified placental disorder