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. 2018 Jul 3;68(5):492–498. doi: 10.1016/j.bjane.2018.04.009

Table 1.

Temporal classification of surgeries.

Emergency: Immediate risk to life, organ or limb
Urgency: If not performed within hours can cause injury, including life-threatening or organ dysfunction
Non-urgent and non-elective (NU/NE) or time-sensitive procedure: If not performed within days can cause injury (organic dysfunction or reduced quality of life)
Elective

Source: Guidelines ACC/AHA (American College of Cardiology/American Heart Association) 2014 (9).