CPT Anesthesia Modifier codes

Anesthesia Modifier List



AA - Anesthesia services personally performed by anesthesiologist
AD - Medical supervision by a physician: More than 4 concurrent anesthesia procedures
AE - Direction of residents in furnishing not more than two concurrent anesthesia services - attending physician relationship met
QK - Medical direction of 2, 3, or 4 concurrent anesthesia procedures involving qualified individuals
QS - Monitored anesthesia care
QX - CRNA service with medical direction by physician
QY - Medical direction of one concurrent anesthesia procedure involving qualified individuals
QZ - CRNA service without medical direction by a physician
23 - Unusual anesthesia - Used to report a procedure which usually requires either no anesthesia or local anesthesia; however, because of unusual circumstances must be done under general anesthesia
47 - Anesthesia by surgeon - Used to report regional or general anesthesia provided by the surgeon (not for local anesthesia)

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