Modifier 73 fact sheet
Use modifier 73 to report discontinued outpatient or hospital ambulatory surgical center (ASC) procedure prior to the administration of anesthesia.
Physicians should not use this modifier. This is only appropriate for use by the ASC.
Appropriate usage
Discontinued due to extenuating circumstances or a threat to the patient’s well-being:
- Prior to procedure started/patient's surgical preparation (including sedation or taken to procedure room)
- Prior to administration of anesthesia (local, regional block or general)
Inappropriate usage
- Physician cancelled the surgical or diagnostic procedure prior to administration of anesthesia and/or surgical preparation of the patient
- Elective cancellation of a procedure
- Surgeon cancels or postpones because patient complained of a cold or flu upon intake
Reference