Evacuation of recurrent subdural hematoma and drain placement

Question:

A patient returns two weeks after evacuation of a chronic subdural hematoma with a recurrence requiring another evacuation of the hematoma and placement of a subdural drain. What are the correct codes to report for the evacuation of the hematoma and placement of the drain?

Answer:

CPT code 61312 for re-do craniotomy for hematoma with modifier 58 appended for a more extensive procedure treating the same problem during the global period.  The drain would not be separately reported.

*This response is based on the best information available as of 11/14/24.