Y38.3X - Terrorism involving fires, conflagration and hot substances Y38.3 - Terrorism involving fires, conflagration and hot substances Y38.3X - Terrorism involving fires, conflagration and hot substances Y38.3X1 - Terrorism involving fires, conflagration and hot substances, public safety official injured Y38.3X2 - Terrorism involving fires, conflagration and hot substances, civilian injured Y38.3X3 - Terrorism involving fires, conflagration and hot substances, terrorist injured