1983 P Lincoln Memorial Cent Possible DDR And A Question

I think I am gaining enough experience not to ask a really dumb question. But the jury is still out........ So here goes.

Attached is a photo my 1983 P LMC (there is no DDR listed for 1983 with this damage) and an inset of 1999P 1DR-013. Though they are different years, with similar damage, one is a DDR and the other isn't listed. Is my coin an undiscovered DDR, or is there a difference between the two that I am missing?

Thanks.
NYI