Diseases of the nervous system (G00-G99)
Excludes 2:
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)
Demyelinating diseases of the central nervous system (G35-G37)
G35
Multiple sclerosis Disseminated multiple sclerosis Generalized multiple sclerosis Multiple sclerosis NOS Multiple sclerosis of brain stem Multiple sclerosis of cord
G36
Other acute disseminated demyelination [+]
Excludes 1:
postinfectious encephalitis and encephalomyelitis NOS (G04.01)
G36.0
Neuromyelitis optica [Devic] Demyelination in optic neuritis
Excludes 1:
optic neuritis NOS (H46)
G36.1
Acute and subacute hemorrhagic leukoencephalitis [Hurst]
G36.8
Other specified acute disseminated demyelination
G36.9
Acute disseminated demyelination, unspecified
G37
Other demyelinating diseases of central nervous system [+]
G37.0
Diffuse sclerosis of central nervous system Periaxial encephalitis Schilder's disease
Excludes 1:
X linked adrenoleukodystrophy (E71.52-)
G37.1
Central demyelination of corpus callosum
G37.2
Central pontine myelinolysis
G37.3
Acute transverse myelitis in demyelinating disease of central nervous system Acute transverse myelitis NOS Acute transverse myelopathy
Excludes 1:
acute flaccid myelitis (G04.82) multiple sclerosis (G35) neuromyelitis optica [Devic] (G36.0)
G37.4
Subacute necrotizing myelitis of central nervous system
G37.5
Concentric sclerosis [Balo] of central nervous system
G37.8
Other specified demyelinating diseases of central nervous system [+]
G37.81
Myelin oligodendrocyte glycoprotein antibody disease MOG antibody disease
Code also
associated manifestations, if known, such as: noninfectious acute disseminated encephalomyelitis (G04.81) neuromyelitis optica (G36.0)
G37.89
Other specified demyelinating diseases of central nervous system
G37.9
Demyelinating disease of central nervous system, unspecified
Back to Previous Page
© 2025 - Medicare Informatics - Medicare Informatics & Data Analysis in Cloud
The Provider of Services data are collected through the Centers for Medicare & Medicaid Services (CMS) Regional Offices.
It contains an individual record for each Medicare-approved provider and is updated quarterly.
The Preventive Services information are collected while browsing through the Centers for Medicare & Medicaid Services (CMS) Websites.
Medicare policy changes frequently so links to the source documents have been provided within the document for your reference.
The ICD-10 Diagnosis Codes are based on the latest diagnosis coding files (2021 ICD-10-CM and 2018 GEMs ).
The ICD-10 Procedure Codes are based on the latest procedure coding files (2021 ICD-10-PCS and 2018 GEMs ).