Reading Health Level Seven (HL 7) data format into R

Has anyone developed code for reading HL 7 formatted data into R? HL 7
is an open standard for the digital transfer of health care information.
It's moving towards XML but it isn't there yet. A study I started
working on today will be receiving lab data in that format. I'd rather
not reinvent any more wheels than strictly necessary. Thanks for your
time.

Chuck