G97 - Intraoperative and postprocedural complications and disorders of nervous system, not elsewhere classified
G97.5 - Postprocedural hemorrhage and hematoma of a nervous system organ or structure following a procedure
G97.51 - Postprocedural hemorrhage and hematoma of a nervous system organ or structure following a nervous system procedure
G97.52 - Postprocedural hemorrhage and hematoma of a nervous system organ or structure following other procedure