G89 Pain, Not Elsewhere Classified

G90.0 Idiopathic peripheral autonomic neuropathy

G90.1

Familial dysautonomia [Riley-Day]

G90.2

Horner's syndrome

G90.3

Multi-system degeneration of the autonomic nervous system

G90.4 Autonomic dysreflexia

G90.5

Complex regional pain syndrome I (CRPS I)

G90.8

Other disorders of autonomic nervous system

[Autonomic Dysfunction]

G91 Hydrocephalus

G92 Toxic Encephalopathy

G93 Other Disorders of Brain

G93.0

Cerebral cysts

G93.2

Benign intracranial hypertension (Pseudotumor Cerebri)

G93.3 Postviral fatigue syndrome

G93.4

Other & unspecified encephalopathy

G93.5 Compression of brain

G93.6 Cerebral edema

G93.7

Reye's syndrome

G93.8

Other specified disorders of brain

G93.9

Disorder of brain, unspecified

G94 Other Disorders of Brain in Diseases Classified Elsewhere

G95 Other & Unspecified Diseases of Spinal Cord

G95.0 Syringomyelia & syringobulbia

G95.1

Vascular myelopathies

G95.2

Other & unspecified cord compression

G95.8

Other specified diseases of spinal cord

G95.9

Disease of spinal cord, unspecified

G96 Other Disorders of Central Nervous System

G97 Intraoperative & Postprocedural Complications & Disorders of Nervous System, Not Elsewhere Classified

G98 Other Disorders of Nervous System Not Elsewhere Classified

G99 Other Disorders of Nervous System in Diseases Classified Elsewhere