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.
361 to 400 of 932
- G43.E01Chronic migraine with aura, not intractable, with stat migrBillable
- G43.E09Chronic migraine with aura, not ntrct, without stat migrBillable
- G43.E1Chronic migraine with aura, intractableHeader
- G43.E11Chronic migraine with aura, intractable, with stat migrBillable
- G43.E19Chronic migraine with aura, intractable, without stat migrBillable
- G44Other headache syndromesHeader
- G44.0Cluster headaches and other trigeminal autonm cephalgias (TAC)Header
- G44.00Cluster headache syndrome, unspecifiedHeader
- G44.001Cluster headache syndrome, unspecified, intractableBillable
- G44.009Cluster headache syndrome, unspecified, not intractableBillable
- G44.01Episodic cluster headacheHeader
- G44.011Episodic cluster headache, intractableBillable
- G44.019Episodic cluster headache, not intractableBillable
- G44.02Chronic cluster headacheHeader
- G44.021Chronic cluster headache, intractableBillable
- G44.029Chronic cluster headache, not intractableBillable
- G44.03Episodic paroxysmal hemicraniaHeader
- G44.031Episodic paroxysmal hemicrania, intractableBillable
- G44.039Episodic paroxysmal hemicrania, not intractableBillable
- G44.04Chronic paroxysmal hemicraniaHeader
- G44.041Chronic paroxysmal hemicrania, intractableBillable
- G44.049Chronic paroxysmal hemicrania, not intractableBillable
- G44.05Shrt lst unil nerlgif headache with cnjnct inject/tear (SUNCT)Header
- G44.051Shrt lst unil nerlgif hdache with cnjnct inject/tear, ntrctBillable
- G44.059Shrt lst unil nerlgif hdache with cnjnct inject/tear, not ntrctBillable
- G44.09Other trigeminal autonomic cephalgias (TAC)Header
- G44.091Other trigeminal autonomic cephalgias (TAC), intractableBillable
- G44.099Other trigeminal autonomic cephalgias (TAC), not intractableBillable
- G44.1Vascular headache, not elsewhere classifiedBillable
- G44.2Tension-type headacheHeader
- G44.20Tension-type headache, unspecifiedHeader
- G44.201Tension-type headache, unspecified, intractableBillable
- G44.209Tension-type headache, unspecified, not intractableBillable
- G44.21Episodic tension-type headacheHeader
- G44.211Episodic tension-type headache, intractableBillable
- G44.219Episodic tension-type headache, not intractableBillable
- G44.22Chronic tension-type headacheHeader
- G44.221Chronic tension-type headache, intractableBillable
- G44.229Chronic tension-type headache, not intractableBillable
- G44.3Post-traumatic headacheHeader