Chapter VI
Diseases of the nervous system
(G00-G99)
Other disorders of the nervous system
(G90-G99)
G90 | Disorders of autonomic nervous system Latin: Affectiones systematis nervosi autonomi | |||||||
Excludes: | dysfunction of autonomic nervous system due to alcohol (G31.2) | |||||||
G90.0 | Idiopathic peripheral autonomic neuropathy Latin: Neuropathia autonoma peripherica idiopathica | |||||||
Carotid sinus syncope | ||||||||
G90.1 | Familial dysautonomia [Riley-Day] Latin: Dysautonomia familiaris (Riley-Day) | |||||||
G90.2 | Horner's syndrome Latin: Syndroma Horner | |||||||
Bernard(-Horner) syndrome | ||||||||
G90.3 | Multi-system degeneration Latin: Degeneratio multisystemicam | |||||||
Neurogenic orthostatic hypotension [Shy-Drager] | ||||||||
Excludes: | orthostatic hypotension NOS (I95.1) | |||||||
G90.4 | Autonomic dysreflexia | |||||||
G90.8 | Other disorders of autonomic nervous system Latin: Affectiones systematis nervosi autonomi alii | |||||||
G90.9 | Disorder of autonomic nervous system, unspecified Latin: Affectiones systematis nervosi autonomi, non specificatus |
G91 | Hydrocephalus Latin: Hydrocephalus | |||||||
Includes: | acquired hydrocephalus | |||||||
Excludes: | hydrocephalus: · congenital (Q03.-) · due to congenital toxoplasmosis (P37.1) | |||||||
G91.0 | Communicating hydrocephalus Latin: Hydrocephalus communicans | |||||||
G91.1 | Obstructive hydrocephalus Latin: Hydrocephalus obstructivus | |||||||
G91.2 | Normal-pressure hydrocephalus Latin: Hydrocephalus cum tensione normali | |||||||
G91.3 | Post-traumatic hydrocephalus, unspecified Latin: Hydrocephalus posttraumaticus, non specificatus | |||||||
G91.8 | Other hydrocephalus Latin: Hydrocephalus alius | |||||||
G91.9 | Hydrocephalus, unspecified Latin: Hydrocephalus, non specificatus |
G92 | Toxic encephalopathy Latin: Encephalopathia toxica | |||||||
Use additional external cause code (Chapter XX), if desired, to identify toxic agent. |
G93 | Other disorders of brain Latin: Morbi cerebri alii | |||||||
G93.0 | Cerebral cysts Latin: Cystis cerebri | |||||||
Arachnoid cyst Porencephalic cyst, acquired | ||||||||
Excludes: | acquired periventricular cysts of newborn (P91.1) congenital cerebral cysts (Q04.6) | |||||||
G93.1 | Anoxic brain damage, not elsewhere classified Latin: Laesio cerebri anoxica | |||||||
Excludes: | complicating: · abortion or ectopic or molar pregnancy (O00-O07, O08.8) · pregnancy, labour or delivery (O29.2, O74.3, O89.2) · surgical and medical care (T80-T88) neonatal anoxia (P21.9) | |||||||
G93.2 | Benign intracranial hypertension Latin: Hypertensio intracranialis benigna | |||||||
Excludes: | hypertensive encephalopathy (I67.4) | |||||||
G93.3 | Postviral fatigue syndrome Latin: Syndroma fatigationis postviralis | |||||||
Benign myalgic encephalomyelitis | ||||||||
G93.4 | Encephalopathy, unspecified Latin: Encephalopathia, non specificata | |||||||
Excludes: | encephalopathy: · alcoholic (G31.2) · toxic (G92) | |||||||
G93.5 | Compression of brain Latin: Compressio cerebri | |||||||
Compression Herniation | } } | of brain (stem) | ||||||
Excludes: | traumatic compression of brain (diffuse) (S06.2) · focal (S06.3) | |||||||
G93.6 | Cerebral oedema Latin: Oedema cerebri | |||||||
Excludes: | cerebral oedema: · due to birth injury (P11.0) · traumatic (S06.1) | |||||||
G93.7 | Reye's syndrome Latin: Syndroma Reye | |||||||
Use additional external cause code (Chapter XX), if desired, to identify cause. | ||||||||
G93.8 | Other specified disorders of brain Latin: Morbi cerebri specificati, alii | |||||||
Postradiation encephalopathy | ||||||||
Use additional external cause code (Chapter XX), if desired, to identify cause. | ||||||||
G93.9 | Disorder of brain,unspecified Latin: Morbus cerebri, non specificatus |
G94* | Other disorders of brain in diseases classified elsewhere Latin: Morbi cerebri alii in morbis aliis | |||||||
G94.0* | Hydrocephalus in infectious and parasitic diseases classified elsewhere (A00-B99+) Latin: Hydrocephalus in morbis infectivis et morbis parazitariis (A00-B99+) | |||||||
G94.1* | Hydrocephalus in neoplastic disease (C00-D48+) Latin: Hydrocephalus ad neoplasmam (C00-D48+) | |||||||
G94.2* | Hydrocephalus in other diseases classified elsewhere Latin: Hydrocephalus in morbis aliis | |||||||
G94.8* | Other specified disorders of brain in diseases classified elsewhere Latin: Morbi cerebri specificati alii in morbis aliis |
G95 | Other diseases of spinal cord Latin: Morbi medullae spinalis alii | |||||||
Excludes: | myelitis (G04.-) | |||||||
G95.0 | Syringomyelia and syringobulbia Latin: Syringomyelia et syringobulbia | |||||||
G95.1 | Vascular myelopathies Latin: Myelopathia vascularis | |||||||
Acute infarction of spinal cord (embolic)(nonembolic) Arterial thrombosis of spinal cord Haematomyelia Nonpyogenic intraspinal phlebitis and thrombophlebitis Oedema of spinal cord Subacute necrotic myelopathy | ||||||||
Excludes: | intraspinal phlebitis and thrombophlebitis, except non-pyogenic (G08) | |||||||
G95.2 | Cord compression, unspecified Latin: Compressio medullae spinalis, non specificata | |||||||
G95.8 | Other specified diseases of spinal cord Latin: Morbi medullae spinalis specificati, alii | |||||||
Cord bladder NOS Myelopathy: · drug-induced · radiation-induced | ||||||||
Use additional external cause code (Chapter XX), if desired, to identify external agent. | ||||||||
Excludes: | neurogenic bladder: · NOS (N31.9) · due to cauda equina syndrome (G83.4) neuromuscular dysfunction of bladder without mention of spinal cord lesion (N31.-) | |||||||
G95.9 | Disease of spinal cord, unspecified Latin: Morbus medullae spinalis, non specificatus | |||||||
Myelopathy NOS |
G96 | Other disorders of central nervous system Latin: Morbi systematis nervosi centralis alii | |||||||
G96.0 | Cerebrospinal fluid leak Latin: Liquorrhoea | |||||||
Excludes: | from spinal puncture (G97.0) | |||||||
G96.1 | Disorders of meninges, not elsewhere classified Latin: Morbi meningium | |||||||
Meningeal adhesions (cerebral)(spinal) | ||||||||
G96.8 | Other specified disorders of central nervous system Latin: Morbi systematis nervosi centralis specificati, alii | |||||||
G96.9 | Disorder of central nervous system, unspecified Latin: Morbus systematis nervosi centralis, non specificatus |
G97 | Postprocedural disorders of nervous system, not elsewhere classified Latin: Morbi systematis nervosi postprocedurales | |||||||
G97.0 | Cerebrospinal fluid leak from spinal puncture Latin: Liquorrhoea cerebrospinalis puncturalis | |||||||
G97.1 | Other reaction to spinal and lumbar puncture Latin: Reactio in punctionem spinolumbalem alia | |||||||
G97.2 | Intracranial hypotension following ventricular shunting Latin: Hypotensio intracranialis ad lateralisationem ventriculi | |||||||
G97.8 | Other postprocedural disorders of nervous system Latin: Morbi systematis nervosi postprocedurales alii | |||||||
G97.9 | Postprocedural disorder of nervous system, unspecified Latin: Morbus systematis nervosi postproceduralis, non specificata |
G98 | Other disorders of nervous system, not elsewhere classified Latin: Morbi systematis nervosi alii | |||||||
Nervous system disorder NOS |
G99* | Other disorders of nervous system in diseases classified elsewhere Latin: Morbi systematis nervosi alii in morbis aliis | |||||||
G99.0* | Autonomic neuropathy in endocrine and metabolic diseases Latin: Neuropathia autonoma in morbis endocrinis et metabolicis | |||||||
Amyloid autonomic neuropathy (E85.-+) Diabetic autonomic neuropathy (E10-E14+ with common fourth character .4) | ||||||||
G99.1* | Other disorders of autonomic nervous system in other diseases classified elsewhere Latin: Morbi systematis nervosi autonomi alii in morbis aliis | |||||||
G99.2* | Myelopathy in diseases classified elsewhere Latin: Myelopathia in morbis aliis | |||||||
Anterior spinal and vertebral artery compression syndromes (M47.0+) Myelopathy in: · intervertebral disc disorders (M50.0+, M51.0+) · neoplastic disease (C00-D48+) · spondylosis (M47.-+) | ||||||||
G99.8* | Other specified disorders of nervous system in diseases classified elsewhere Latin: Morbi systematis nervosi specificati alii in morbis aliis |
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