G00 Bacterial meningitis, not elsewhere classified
G02 Meningitis in other infectious and parasitic diseases classified elsewhere
G03 Meningitis due to other and unspecified causes
G04 Encephalitis, myelitis and encephalomyelitis
G05 Encephalitis, myelitis and encephalomyelitis in diseases classified elsewhere
G06 Intracranial and intraspinal abscess and granuloma
G08 Intracranial and intraspinal phlebitis and thrombophlebitis
G09 Sequelae of inflammatory diseases of central nervous system
G10 Huntington's disease
G11 Hereditary ataxia
G12 Spinal muscular atrophy and related syndromes
G15 Huntington's disease
G18 Huntington's disease
G20 Parkinson's disease
G21 Secondary parkinsonism
G22 Parkinsonism in diseases classified elsewhere
G23 Other degenerative diseases of the basal ganglia
G24 Dystonia
G25 Other extrapyramidal and movement disorders
G29 Parkinson's disease
G30 Alzheimer's disease
G31 Other degenerative diseases of nervous system, not elsewhere classified
G32 Other degenerative disorders of nervous system in diseases classified elsewhere
G34 Alzheimer's disease
G35 Multiple sclerosis
G36 Other acute disseminated demyelination
G37 Other demyelinating diseases of central nervous system
G40 Epilepsy
G41 Status epilepticus
G42 Epilepsy
G43 Migraine
G44 Other headache syndromes
G45 Transient cerebral ischaemic attacks and related syndromes
G46 Vascular syndromes of brain in cerebrovascular diseases (I60-I67+)
G47 Sleep disorders
G50 Disorders of trigeminal nerve
G51 Facial nerve disorders
G52 Disorders of other cranial nerves
G53 Cranial nerve disorders in diseases classified elsewhere
G54 Nerve root and plexus disorders
G55 Nerve root and plexus compressions in diseases classified elsewhere
G56 Mononeuropathies of upper limb
G57 Mononeuropathies of lower limb
G58 Other mononeuropathies
G60 Hereditary and idiopathic neuropathy
G61 Inflammatory polyneuropathy
G62 Other polyneuropathies
G64 Other disorders of peripheral nervous system
G70 Myasthenia gravis and other myoneural disorders
G71 Primary disorders of muscles
G72 Other myopathies
G75 Myasthenia gravis and other myoneural disorders
G77 Myasthenia gravis and other myoneural disorders
G80 Infantile cerebral palsy
G81 Hemiplegia
G82 Paraplegia and tetraplegia
G83 Other paralytic syndromes
G85 Infantile cerebral palsy
G90 Disorders of autonomic nervous system
G91 Hydrocephalus
G92 Toxic encephalopathy
G93 Other disorders of brain
G94 Other disorders of brain in diseases classified elsewhere
G95 Other diseases of spinal cord
G96 Other disorders of central nervous system
G99 Other disorders of nervous system in diseases classified elsewhere