There are multiple definitions:

1. Neonatal Intensive Care Unit(English)

   • ICU, LNF, NEC, PICU, POPS
   • Neonatal situation, Intensive care medicine

2. nonallergic on nonimmunologic contact urticaria(English)

   • Dermatology

3. neurological intensive care unit(English)

   • CVA, EICA, ICU, SAH, NIC
   • Neurology, Intensive care medicine
   • https://doi.org…/jnn.2022.00115
   • https://doi.org…877-022-00894-2