CHAPTER A - nomesco

AAJ 30 Callosotomy for epilepsy
AAJ 35 Hemidecortication for epilepsy
AAJ 99 Other operation for epilepsy
AAK Operations on skull and dura
N ERVOUS SYSTEM
For injury, see: AAD 40
Additional code for specification of grafts and flaps, see: ZZ
AAK 00 Cranioplasty
AAK 10 Repair of dura
AAK 20 Operations for craniosynostosis
AAK 30 Craniofacial reconstruction in congenital malformations
AAK 40 Closure of cerebrospinal fluid fistula
AAK 70 Biopsy of skull
AAK 75 Excision of lesion of skull
AAK 80 Partial excision of skull cap
For relief of acute cerebral edema
AAK 85 Replantation of previously excised part of skull cap
AAK 99 Other operation on skull or dura
AAL Intracranial endovascular procedures
Open operations for intracranial aneurysms and vascular malformations, see: AAC
AAL 00 Endovascular occlusion of intracranial aneurysm
AAL 10 Intracranial endovascular thrombolysis
AAL 20 Endovascular occlusion of intracranial arterio-venous malformation
AAL 30 Endovascular occlusion of intracranial fistula
AAL 40 Endovascular occlusion of feeding arteries of intracranial tumour
AAL 99 Other intracranial endovascular procedure
AAM Operations for intracranial infection
Drainage and reservoir operations on ventricles or intracranial cysts, see: AAF
AAM 00 Puncture and evacuation of intracerebral abscess
AAM 10 Excision of intracerebral abscess
AAM 30 Evacuation of epidural or subdural empyema
AAM 99 Other operation for intracranial infection
AAN Operations for intracranial congenital malformations
AAN 00 Excision and repair of encephalocele
AAN 99 Other operation for intracranial congenital malformation
AAP Reconstructive operations for facial palsy
Operation for ptosis of eyebrow only, see: CBJ 50
AAP 00 Lacal transposition of muscle for facial palsy
AAP 10 Cross-facial transplantation of nerve for facial palsy
AAP 20 Microvascular transposition of muscle for facial palsy
AAP 99 Other reconstructive opration for facial palsy
25