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75.42-year-old patient was undergoing anesthesia in an ASC and began having complications prior tothe administration of anesthesia.The surgeon immediately discontinued the planned surgery.If theinsurance company requires a reported modifier, what modifier best describes the extenuatingcircumstances?a. 53c. 73b. 23d. 74ANS:Rationale:The modifier 73 best describes an anesthesia service discontinued prior to administration ofanesthesia in an ASC.Refer to Appendix A in your CPT® codebook under the heading ModifiersApproved for Ambulatory Surgery Center (ASC) Hospital Outpatient Use.C