A two-part implantable cardiac pacing lead is usable with a cardiac function management device. The lead includes an outer lead portion having a lead body and a conductive coil extending substantially from the proximal end to the distal end. The lead body defines an internal longitudinal lumen. The lead further includes a surface electrode coupled to the lead body near the distal end and a sleeve defining an internal bore. The sleeve mechanically couples to the proximal end of the lead body and is electrically insulated from the conductive coil. The lead further includes an inner lead portion having a pin adapted to mechanically engage the internal bore. The pin is adapted for electrically coupling with a longitudinally-extending conductive member sized to fit within the internal longitudinal lumen.