ICD-10-CM chapter 6
G00-G99: Diseases of the nervous system
This chapter has 68 categories and 700 billable codes in the 2027 code set. Choose a category to see every code in it.
Categories
- G00Bacterial meningitis, not elsewhere classified
- G01Meningitis in bacterial diseases classified elsewhere
- G02Meningitis in other infectious and parasitic diseases classified elsewhere
- G03Meningitis due to other and unspecified causes
- G04Encephalitis, myelitis and encephalomyelitis
- G05Encephalitis, myelitis and encephalomyelitis in diseases classified elsewhere
- G06Intracranial and intraspinal abscess and granuloma
- G07Intracranial and intraspinal abscess and granuloma in diseases classified elsewhere
- G08Intracranial and intraspinal phlebitis and thrombophlebitis
- G09Sequelae of inflammatory diseases of central nervous system
- G10Huntington's disease
- G11Hereditary ataxia
- G12Spinal muscular atrophy and related syndromes
- G13Systemic atrophies primarily affecting central nervous system in diseases classified elsewhere
- G14Postpolio syndrome
- G20Parkinson's disease
- G21Secondary parkinsonism
- G23Other degenerative diseases of basal ganglia
- G24Dystonia
- G25Other extrapyramidal and movement disorders
- G26Extrapyramidal and movement disorders in diseases classified elsewhere
- G30Alzheimer's disease
- G31Other degenerative diseases of nervous system, not elsewhere classified
- G32Other degenerative disorders of nervous system in diseases classified elsewhere
- G35Multiple sclerosis
- G36Other acute disseminated demyelination
- G37Other demyelinating diseases of central nervous system
- G40Epilepsy and recurrent seizures
- G43Migraine
- G44Other headache syndromes
- G45Transient cerebral ischemic attacks and related syndromes
- G46Vascular syndromes of brain in cerebrovascular diseases
- G47Sleep disorders
- G50Disorders of trigeminal nerve
- G51Facial nerve disorders
- G52Disorders of other cranial nerves
- G53Cranial nerve disorders in diseases classified elsewhere
- G54Nerve root and plexus disorders
- G55Nerve root and plexus compressions in diseases classified elsewhere
- G56Mononeuropathies of upper limb
- G57Mononeuropathies of lower limb
- G58Other mononeuropathies
- G59Mononeuropathy in diseases classified elsewhere
- G60Hereditary and idiopathic neuropathy
- G61Inflammatory polyneuropathy
- G62Other and unspecified polyneuropathies
- G63Polyneuropathy in diseases classified elsewhere
- G64Other disorders of peripheral nervous system
- G65Sequelae of inflammatory and toxic polyneuropathies
- G70Myasthenia gravis and other myoneural disorders
- G71Primary disorders of muscles
- G72Other and unspecified myopathies
- G73Disorders of myoneural junction and muscle in diseases classified elsewhere
- G80Cerebral palsy
- G81Hemiplegia and hemiparesis
- G82Paraplegia (paraparesis) and quadriplegia (quadriparesis)
- G83Other paralytic syndromes
- G89Pain, not elsewhere classified
- G90Disorders of autonomic nervous system
- G91Hydrocephalus
- G92Toxic encephalopathy
- G93Other disorders of brain
- G94Other disorders of brain in diseases classified elsewhere
- G95Other and unspecified diseases of spinal cord
- G96Other disorders of central nervous system
- G97Intraoperative and postprocedural complications and disorders of nervous system, not elsewhere classified
- G98Other disorders of nervous system not elsewhere classified
- G99Other disorders of nervous system in diseases classified elsewhere