ICD-10-CM
Diseases of the nervous system
Chapter 6, G00-G99. CDC FY2027 file dated June 16, 2026.
License: a US government work, in the public domain (Public Domain Mark 1.0).
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Categories
68 categories in this chapter. Open one, or page through every code below.
- G00Bacterial meningitis, not elsewhere classified
- G01Meningitis in bacterial diseases classified elsewhere
- G02Meningitis in other infec/parastc diseases classd elswhr
- G03Meningitis due to other and unspecified causes
- G04Encephalitis, myelitis and encephalomyelitis
- G05Encphlts, myelitis and encephalomyelitis in dis classd elswhr
- G06Intracranial and intraspinal abscess and granuloma
- G07Intcrn and intraspinal abscs and granuloma in dis classd elswhr
- 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 aff cnsl in diseases classd elswhr
- G14Postpolio syndrome
- G20Parkinson's disease
- G21Secondary parkinsonism
- G23Other degenerative diseases of basal ganglia
- G24Dystonia
- G25Other extrapyramidal and movement disorders
- G26Extrapyramidal and movement disord in diseases classd elswhr
- G30Alzheimer's disease
- G31Other degenerative diseases of nervous system, NEC
- G32Other degeneratv disord of nervous system in dis classd elswhr
- 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
32 more categories are in this chapter. Type a code or a term to open one.
Codes
A header groups codes and is not billed. A billable code is one you can report.
401 to 440 of 932
- G44.30Post-traumatic headache, unspecifiedHeader
- G44.301Post-traumatic headache, unspecified, intractableBillable
- G44.309Post-traumatic headache, unspecified, not intractableBillable
- G44.31Acute post-traumatic headacheHeader
- G44.311Acute post-traumatic headache, intractableBillable
- G44.319Acute post-traumatic headache, not intractableBillable
- G44.32Chronic post-traumatic headacheHeader
- G44.321Chronic post-traumatic headache, intractableBillable
- G44.329Chronic post-traumatic headache, not intractableBillable
- G44.4Drug-induced headache, not elsewhere classifiedHeader
- G44.40Drug-induced headache, NEC, not intractableBillable
- G44.41Drug-induced headache, not elsewhere classified, intractableBillable
- G44.5Complicated headache syndromesHeader
- G44.51Hemicrania continuaBillable
- G44.52New daily persistent headache (NDPH)Billable
- G44.53Primary thunderclap headacheBillable
- G44.59Other complicated headache syndromeBillable
- G44.8Other specified headache syndromesHeader
- G44.81Hypnic headacheBillable
- G44.82Headache associated with sexual activityBillable
- G44.83Primary cough headacheBillable
- G44.84Primary exertional headacheBillable
- G44.85Primary stabbing headacheBillable
- G44.86Cervicogenic headacheBillable
- G44.89Other headache syndromeBillable
- G45Transient cerebral ischemic attacks and related syndromesHeader
- G45.0Vertebro-basilar artery syndromeBillable
- G45.1Carotid artery syndrome (hemispheric)Billable
- G45.2Multiple and bilateral precerebral artery syndromesBillable
- G45.3Amaurosis fugaxBillable
- G45.4Transient global amnesiaBillable
- G45.8Other transient cerebral ischemic attacks and related syndBillable
- G45.9Transient cerebral ischemic attack, unspecifiedBillable
- G46Vascular syndromes of brain in cerebrovascular diseasesHeader
- G46.0Middle cerebral artery syndromeBillable
- G46.1Anterior cerebral artery syndromeBillable
- G46.2Posterior cerebral artery syndromeBillable
- G46.3Brain stem stroke syndromeBillable
- G46.4Cerebellar stroke syndromeBillable
- G46.5Pure motor lacunar syndromeBillable