What does category 2 mean in hospital?

Category 2 in hospital can mean different things depending on department, but commonly refers to triage, urgency, or cleanliness classification. In emergency department triage, Category 2 means urgent or emergency requiring treatment within 10 to 15 minutes, such as chest pain, moderate breathing difficulty, or severe abdominal pain, not immediately life-threatening like Category 1 which is resuscitation requiring instant care, but still serious and should not wait long. In surgery scheduling, Category 2 means urgent surgery needed within 24 to 48 hours, not emergency within hours like Category 1, but cannot wait weeks. In hospital cleaning, Category 2 area means medium risk area like general wards that need daily disinfection with hospital-grade disinfectants but not as stringent as operating rooms. In biosafety labs, BSL-2 means moderate risk handling pathogens like influenza that require limited access and biosafety cabinets but not negative pressure rooms like BSL-3 for tuberculosis. In hospital billing, Category 2 CPT codes are tracking codes for quality. In UK NHS, Category 2 patient is urgent. In maternity, Category 2 cesarean means maternal or fetal compromise not immediately life-threatening, needing delivery within 75 minutes. So Category 2 generally means second level of urgency or risk, more serious than routine but less than immediate emergency, requiring prompt attention and appropriate infection control.