Uncomplicated or Community-acquired
Healthcare associated, early onset
Healthcare associated, late onset or critically ill patient
Involves source organ only without anatomical disruption
Acquired outside of healthcare setting with no recent healthcare exposure
Healthcare associated (HCA)
Acquired more than 48 hours post admission, or hospitalization, surgery, dialysis, residence in long term facility within last 12 months.
Can be EARLY (less than 5 days) or LATE (more than 5 days) onset.