American Society of Anesthesiologists' Classification of Surgical Offices According to the Anesthesia and Surgical Procedures Performed

Class A
- Minor surgical procedures
- Local, topical, or infiltration of local anesthetic
- No sedation preoperatively or intraoperatively
Class B
- Minor or major surgical procedures
- Sedation via oral, rectal, or intravenous sedation
- Analgesic or dissociative drugs
Class C
- Minor or major surgical procedures
- General anesthesia
- Major conduction block anesthesia