Chapter 6: Diseases of the nervous system (G00-G99)
This chapter of the ICD-10-CM classification covers diagnosis codes from G00 through G99. Browse the sections below to find specific diagnosis codes within this chapter.
Chapter Notes
Excludes2 (not included here):
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Sections
-
G00-G09 Inflammatory diseases of the central nervous system (G00-G09)44 codes
-
G10-G14 Systemic atrophies primarily affecting the central nervous system (G10-G14)33 codes
-
G20-G26 Extrapyramidal and movement disorders (G20-G26)58 codes
-
G30-G32 Other degenerative diseases of the nervous system (G30-G32)27 codes
-
G35-G37 Demyelinating diseases of the central nervous system (G35-G37)27 codes
-
G40-G47 Episodic and paroxysmal disorders (G40-G47)307 codes
-
G50-G59 Nerve, nerve root and plexus disorders (G50-G59)131 codes
-
G60-G65 Polyneuropathies and other disorders of the peripheral nervous system (G60-G65)30 codes
-
G70-G73 Diseases of myoneural junction and muscle (G70-G73)62 codes
-
G80-G83 Cerebral palsy and other paralytic syndromes (G80-G83)67 codes
-
G89-G99 Other disorders of the nervous system (G89-G99)146 codes
Top-Level Codes in This Chapter
- G00 Bacterial meningitis, not elsewhere classified
- G01 Meningitis in bacterial diseases classified elsewhere Billable
- G02 Meningitis in other infectious and parasitic diseases classified elsewhere Billable
- 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
- G07 Intracranial and intraspinal abscess and granuloma in diseases classified elsewhere Billable
- G08 Intracranial and intraspinal phlebitis and thrombophlebitis Billable
- G09 Sequelae of inflammatory diseases of central nervous system Billable
- G10 Huntington's disease Billable
- G11 Hereditary ataxia
- G12 Spinal muscular atrophy and related syndromes
- G13 Systemic atrophies primarily affecting central nervous system in diseases classified elsewhere
- G14 Postpolio syndrome Billable
- G20 Parkinson's disease
- G21 Secondary parkinsonism
- G23 Other degenerative diseases of basal ganglia
- G24 Dystonia
- G25 Other extrapyramidal and movement disorders
- G26 Extrapyramidal and movement disorders in diseases classified elsewhere Billable
- 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
- G35 Multiple sclerosis
- G36 Other acute disseminated demyelination
- G37 Other demyelinating diseases of central nervous system
- G40 Epilepsy and recurrent seizures
- G43 Migraine
- G44 Other headache syndromes
- G45 Transient cerebral ischemic attacks and related syndromes
- G46 Vascular syndromes of brain in cerebrovascular diseases
- 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 Billable
- G54 Nerve root and plexus disorders
- G55 Nerve root and plexus compressions in diseases classified elsewhere Billable
- G56 Mononeuropathies of upper limb
- G57 Mononeuropathies of lower limb
- G58 Other mononeuropathies
- G59 Mononeuropathy in diseases classified elsewhere Billable
- G60 Hereditary and idiopathic neuropathy
- G61 Inflammatory polyneuropathy
- G62 Other and unspecified polyneuropathies
- G63 Polyneuropathy in diseases classified elsewhere Billable
- G64 Other disorders of peripheral nervous system Billable
- G65 Sequelae of inflammatory and toxic polyneuropathies
- G70 Myasthenia gravis and other myoneural disorders
- G71 Primary disorders of muscles
- G72 Other and unspecified myopathies
- G73 Disorders of myoneural junction and muscle in diseases classified elsewhere
- G80 Cerebral palsy
- G81 Hemiplegia and hemiparesis
- G82 Paraplegia (paraparesis) and quadriplegia (quadriparesis)
- G83 Other paralytic syndromes
- G89 Pain, not elsewhere classified
- 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 Billable
- G95 Other and unspecified diseases of spinal cord
- G96 Other disorders of central nervous system
- G97 Intraoperative and postprocedural complications and disorders of nervous system, not elsewhere classified
- G98 Other disorders of nervous system not elsewhere classified
- G99 Other disorders of nervous system in diseases classified elsewhere
Simplify Medical Coding Workflows
Bedrock Billing integrates ICD-10-CM validation directly into your claims pricing workflow.
Start Pricing Claims