emeyway is correct in that respect, but it could also be the standard by which the facility operates.
This is a specialty cushion, it may be affecting FIMS etc or MDS depending on the setting you are working in.
I know it offsets a few things for the MDS where I am, that we can show in the paperwork we are providing a "specialty mattress" or pressure relieving device for w/c and bed.
This adds up to breakdown preventive measures and could be avoiding F-Tags in LTC settings. I am unsure of the coding for Short Term.