Encyclopedia of Pain

2007 Edition

American Society of Anesthesiologists' Status Category

Reference work entry
DOI: https://doi.org/10.1007/978-3-540-29805-2_180


Each Status Category/Class gives an overall impression of the complexity of the patient's medical condition. If the procedure is performed as an emergency, an ‘E’ is added to the Category/Class

Class 1 – a healthy patient

Class 2 – a patient with mild systemic disease

Class 3 – a patient with severe systemic disease that limits activity but is not incapacitating

Class 4 – a patient with incapacitating systemic disease that is a constant threat to life

Class 5 – a moribund patient not expected to survive 24 hours with or without surgery

 Postoperative Pain, Preoperative Education

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© Springer-Verlag Berlin Heidelberg 2007