Modifier 53 (Discontinue Procedure)
When a physician stops a procedure due to extenuating circumstances or those that threaten the well-being of the patient, you should go for modifier 53, which describes an unexpected problem, beyond the physician’s or patient’s control that require sending the procedure. The physician does not choose to discontinue the procedure as much as he is forced to do because of circumstances.
Modifier 53 is for services that are discontinued for very specific reasons. Here are three things you must watch out for:
• The patient develops a contraindication and the procedure must be discontinued because of patient health reasons
• The physician can’t carry on with the procedure owing to some reason
• The equipment isn’t functioning right and the procedure must be cancelled
You should make use of modifier 53 if one of these reasons does not apply. The only exception might be that Medicare wants modifier 53 for a patient who is prepped to have a colonoscopy but the prep is not adequate and hence the patient must be re-prepped and the colonoscopy done at a later time.
And what if the above situations do not apply to your case? Although non-Medicare payers can make their own rules, most would lead you to go for modifier 52 instead of 53.