A system and method for extra cardiac defibrillation is disclosed. In a particular embodiment, an extra cardiac implantable cardioverter defibrillator system includes an implantable defibrillator having a metal case and a defibrillation lead. The defibrillation lead has a connector at its proximal end for coupling to the implantable defibrillator and a first defibrillation coil electrode at a distal portion of the lead. The first defibrillation electrode configured to be disposed in an inferior vena cava.
