DRGFilt Control File Change for V30: dxc & sgc

The ancient and venerable DRGFilt control file syntax has changed slightly for v30, released in October of 2012. The change is the addition of two new keywords, "dxc" and "sgc" and they stand for "diagnosis count" and "surgery/procedure count" respectively.

The problem they solve are records with 15 dx or 15 procedures. Since drgfilt's cntl file mechanism only has a two-digit length, it cannot directly specify all 15 when they are spaced as on these test records.

When these values are present, they are multiplied in drgfilt by the dxl and/or sgl and override the lengths on the dx and sg cards.

For example, our internal control file to process the Federal test data now looks like this:

age  000 03
sex  003 01
ds   004 02
dxl  000 08
dxc  000 15
poa  000 07
dx   023 96
sgl  000 07
sgc  000 15
surg 223 98
#drg  603 03
#mdc  600 02
#rc   598 02
exmp 006 01
# these are written out by us
drg  607 03
mdc  610 02
rc   612 02
dflg 614 15
sflg 629 15