You bring up an interesting point, Kelly. One item that my team has been wrestling with has been defining what "program management" is. In my office, when we say "program manager" we mean "systems program manager," or someone who is overseeing the procurement of large technical programs. But there are many other "program managers" as well, who buy services, create policy, etc. that are all equally important.
What would you think about splitting the job identifier between systems program managers and "other" program managers? I've heard that DoD uses the 1101 series for PM's, instead of the generic 0340.