The disclosure describes an implantable medical lead for delivering
stimulation to a patient. Electrodes may be located on two or more
surfaces of the lead to, for example, selectively deliver stimulation to
one or more tissue layers within the patient. The lead may be implanted
within or between intra-dermal, deep dermal, or subcutaneous tissue
layers, and may be used to, for example, deliver peripheral nerve field
stimulation to treat pain experienced by the patient at the site at which
the lead is implanted. The lead may comprise a paddle lead or a multiple
level lead, e.g., a lead having a plurality of flat or paddle shaped lead
bodies arranged in substantially parallel planes. Further, the lead may
include fixation structures on the distal end, proximal end, or both ends
to prevent migration.