CPT® 78, Under Provider Services and Ambulatory Service Center Modifiers

The Current Procedural Terminology (CPT®) code 78 as maintained by American Medical Association, is a medical procedural code under the range - Provider Services and Ambulatory Service Center Modifiers.

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Lay Term


Append modifier 78 to an unplanned procedure that requires the patient to return to the operating room. The unplanned procedure is related to an initial procedure. The provider performs the unplanned procedure during the initial procedure’s postoperative period.

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Modifier Guidelines


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