
Other and unspecified disorders of the nervous system

Reaction to spinal or lumbar puncture
- Headache in erect position, after lumbar puncture; due to lowering of intracranial pressure by leakage of cerebrospinal fluid through the needle tract.

Nervous system complications from surgically implanted device

Disorders of meninges not elsewhere classified

Other specified disorders of nervous system

Cerebrospinal fluid rhinorrhea

Toxic encephalopathy

Other specified disorders of nervous system

Unspecified disorders of nervous system
- condition in which there is a deviation from or interruption of the normal structure or function of any component of the brain (including the cerebral hemispheres, diencephalon, brain stem, and cerebellum) or the spinal cord.
- Any deviation from the normal structure or function of the nervous system that is manifested by a characteristic set of symptoms and signs. (NCI)
- impairment of health or a condition of abnormal functioning of the nervous system.
- Any deviation from the normal structure or function of the nervous system that is manifested by a characteristic set of symptoms and signs.