Is evacuation of a head laceration scalp hematoma a surgical procedure?

Yes: If small, may be able to accomplish under local anesthesia. If larger blood collection, best done in a formal procedure room with anesthesia.

Yes: Technically yes. It is not a huge procedure as it is technically skin deep. But scalp lacerations can bleed a lot and a hematoma in that location could have lots of clots and therefore will requires a thorough evacuation with good lighting and surgical instruments as in a typical or.