Subject is unable to operate the system.

Subject is an unsuitable surgical candidate.

Subject has a condition currently requiring or likely to require the use of diathermy.

Subject has another implantable stimulator such as demand type pacemakers or cardioverter defibrillator.

Subject is \<18 years old.

Subject is pregnant or nursing.

Subject is allergic, or has shown hypersensitivity, to any materials of the neurostimulation system which come in contact with the body.

Subject is being treated with electroconvulsive therapy (ECT) or transcranial magnetic stimulation (rTMS).

ECAP-controlled, Closed-loop Stimulation to Treat Chronic Trunk and/or Limb Pain (ECAP)