Bipolar Disorder – Not Otherwise Specified (NOS)  Bipolar Disorder – Not Otherwise Specified (NOS) is a type of Bipolar Disorder (also known as “manic-depressive illness” or “manic depression”). Like the other kinds of Bipolar Disorder, Bipolar NOS is a complex mood disorder characterized by dramatic mood swings – from hypomania/mania and/or irritable to sad and […]