There are multiple definitions:

1. Federazione Italiana di Cardiologica(Italian)

   • Cardiology, Organizations (clinical)

2. feline interstitial cystitis(English)

   • accounts for the majority of cases seen with lower urinary tract disease. Cats suffering from FIC make frequent attempts to urinate, probably because of bladder discomfort, and often have hematuria. FIC appears to be associated with interactions among the nervous system, adrenal glands, and the bladder. Environment also clearly plays a role in the disorder. FIC is a diagnosis of exclusion. Signs of FIC often resolve spontaneously within a couple of days regardless of treatment. Most treatments therefore attempt to provide pain relief and prevent subsequent recurrence of clinical signs. Stress reduction, environmental enrichment, and feeding a therapeutic urinary-tract food are important in the management
   • Veterinary medicine
   • https://doi.org…1119201076.ch29

3. full-intensity conditioned(English)

   • BM, HLA, GVHD, PTCY, RIC, URD
   • Transplantation
   • https://doi.org…bmt.2019.12.553

4. Family of International Classifications(English)

   • NGO, WHO, WHO-FIC
   • Classification, Organizations (international)
   • https://who.int…cations-network