Modifier 74

After Anesthesia Administration - Discontinued Ambulatory Surgical Center (ASC) or Outpatient Hospital


When physician discontinues surgical or diagnostic procedure, after anesthesia administration in outpatient hospital or ASC only, due to extenuating circumstances or threat to patient well-being.

Correct Use

  • After procedure started (incision made, intubation started, scope inserted)
  • After administration of anesthesia (local, regional block or general)
  • Under these circumstances, intended service is prepared, but canceled and billed with usual procedure number

Incorrect Use

  • Do not report elective cancellation of patient service prior to administration of anesthesia and/or surgical preparation



Last Updated Dec 12 , 2022