We don't code transfusions but my educated guess would be just code it to Frozen.
See below that I found on Engage
Fresh Frozen Plasma (FFP) is plasma that is frozen within 6 hours of collection. Many blood centers have stopped making this due to the time restraints. Frozen plasma is plasma that is frozen usually within 24 hours of collection. We do not use fresh plasma that has not been frozen.
Our blood supplier does have that product and they are thinking that hospitals might like to stock a few for massive transfusions. It takes about 30 minutes to thaw plasma and that is a long time when you have a patient bleeding out. Also, thawed plasma is only good for 5 days and the liquid plasma has a 26 day expiration. It is called " Liquid Plasma" not fresh plasma- that might be another coding issue or just semantics."