Chapter 6: Diseases of the Nervous System
ICD-10-CM codes G00-G99
Includes codes for epilepsy, migraine, Parkinson's disease, Alzheimer's disease, multiple sclerosis, neuropathies, sleep disorders, and carpal tunnel syndrome. Migraine (G43) and other headache syndromes are extremely common in outpatient coding.
G00-G09
Inflammatory Diseases of the Central Nervous System
G00Bacterial meningitis, not elsewhere classified
G01Meningitis in bacterial diseases classified elsewhere
G02Meningitis in oth infec/parastc diseases classd elswhr
G03Meningitis due to other and unspecified causes
G04Encephalitis, myelitis and encephalomyelitis
G05Encphlts, myelitis & encephalomyelitis in dis classd elswhr
G06Intracranial and intraspinal abscess and granuloma
G07Intcrn & intraspinal abscs & granuloma in dis classd elswhr
G08Intracranial and intraspinal phlebitis and thrombophlebitis
G09Sequelae of inflammatory diseases of central nervous system
G10-G14
Systemic Atrophies Primarily Affecting the Central Nervous System
G20-G26
Extrapyramidal and Movement Disorders
G30-G32
Other Degenerative Diseases of the Nervous System
G35-G37
Demyelinating Diseases of the Central Nervous System
G40-G47
Episodic and Paroxysmal Disorders
G50-G59
Nerve, Nerve Root and Plexus 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 classd elswhr
G56Mononeuropathies of upper limb
G57Mononeuropathies of lower limb
G58Other mononeuropathies
G59Mononeuropathy in diseases classified elsewhere
G60-G65
Polyneuropathies and Other Disorders of the Peripheral Nervous System
G70-G73
Diseases of Myoneural Junction and Muscle
G80-G83
Cerebral Palsy and Other Paralytic Syndromes
G89-G99
Other Disorders of the Nervous System
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
G97Intraop and postproc comp and disorders of nervous sys, NEC
G98Other disorders of nervous system not elsewhere classified
G99Oth disorders of nervous system in diseases classd elswhr
Frequently Asked Questions
What ICD-10 codes are in Chapter 6?
Chapter 6: Diseases of the Nervous System covers ICD-10-CM codes G00-G99. It contains 11 code blocks with 68 top-level categories.
What conditions does ICD-10 Chapter 6 cover?
Includes codes for epilepsy, migraine, Parkinson's disease, Alzheimer's disease, multiple sclerosis, neuropathies, sleep disorders, and carpal tunnel syndrome. Migraine (G43) and other headache syndromes are extremely common in outpatient coding. This chapter includes codes from G00-G99.
How many code blocks are in Chapter 6?
Chapter 6 has 11 code blocks: G00-G09 (Inflammatory Diseases of the Central Nervous System), G10-G14 (Systemic Atrophies Primarily Affecting the Central Nervous System), G20-G26 (Extrapyramidal and Movement Disorders), G30-G32 (Other Degenerative Diseases of the Nervous System), and 7 more.
Is there an ICD-11 equivalent of ICD-10 Chapter 6?
ICD-11 reorganizes many chapters compared to ICD-10. Some conditions in Chapter 6 may appear in different ICD-11 chapters. Use the ICD-10 to ICD-11 converter to find specific code equivalents.
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