CHAPTER A - nomesco

N ERVOUS SYSTEM
AAC Operations for intracranial aneurysm and other vascular lesions
Endovascular procedures, see: AAL
AAC 00 Ligature of intracranial aneurysm
Using clips and similar devices
AAC 05 Ligature of feeding artery of intracranial aneurysm
AAC 10 Reinforcement of intracranial aneurysm wall
AAC 15 Trapping of intracranial aneurysm
AAC 20 Anastomosis to intracranial vessel
AAC 30 Intracranial occlusion of vascular fistula
AAC 40 Extirpation of intracranial arterio-venous malformation
AAC 99 Other operation for aneurysm or other intracranial vascular lesion
AAD Operations for head injuries
Partial excision of skull cap, see: AAK 80
AAD 00 Evacuation of epidural haematoma
AAD 05 Evacuation of acute subdural haematoma
AAD 10 Evacuation of chronic subdural haematoma
AAD 15 Evacuation of traumatic intracerebral haematoma
AAD 30 Revision of penetrating or perforating injury of skull
Includes: Removal of intracranial foreign body
AAD 40 Revision of fracture of skull
Includes: Of depressed fracture
AAD 99 Other operation for head injury
AAE Operations by cranial base approach
Includes: Operations on pituitary gland
AAE 00 Transsphenoidal exploration
AAE 10 Transsphenoidal total or partial excision of intracranial lesion
AAE 20 Transoral total or partial excision of intracranial lesion
AAE 25 Transcervical total or partial excision of intracranial lesion
AAE 30 Translabyrinthine total or partial excision of intracranial lesion
AAE 40 Transtemporal total or partial excision of intracranial lesion
AAE 50 Zygomaticotemporal total or partial excision of intracranial lesion
AAE 99 Other operation by cranial base approach
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