2027 ICD-10-CM Diagnosis Code G37Other demyelinating diseases of central nervous system

ICD-10-CM Codes›G00–G99›G35-G37›G37

ICD-10-CM G37
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

G37 is a non-billable ICD-10-CM category code for other demyelinating diseases of central nervous system, so it cannot be submitted on claims. Use a more specific code from this category instead, such as G37.0, G37.1, G37.2, and G37.3.

Code Identity

ICD-10-CM Code
G37
Billable Status
No — Non-Billable Category
Code Describes
Other demyelinating diseases of central nervous system
Short Description
Other demyelinating diseases of central nervous system
Same as the full description in the CMS dataset.
Chapter
G35-G37
Demyelinating diseases of the central nervous system

Code Classification

ChapterG00–G99Diseases of the nervous system
SectionG35-G37Demyelinating diseases of the central nervous system
CategoryG37Other demyelinating diseases of central nervous system
This CodeG37Other demyelinating diseases of central nervous system

Specific Coding for Other demyelinating diseases of central nervous systemOverview

Non-specific codes like G37 require more characters. Use one of these billable codes instead:

  • Use G37.0 for Diffuse sclerosis of central nervous system

  • Use G37.1 for Central demyelination of corpus callosum

  • Use G37.2 for Central pontine myelinolysis

  • Use G37.3 for Acute transverse myelitis in demyelinating disease of central nervous system

  • Use G37.4 for Subacute necrotizing myelitis of central nervous system

  • Use G37.5 for Concentric sclerosis [Balo] of central nervous system

  • G37.8 for Other specified demyelinating diseases of central nervous system

  • Use G37.81 for Myelin oligodendrocyte glycoprotein antibody disease

  • Use G37.89 for Other specified demyelinating diseases of central nervous system

  • Use G37.9 for Demyelinating disease of central nervous system, unspecified

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to G37: its own notes plus those printed at Chapter 6. A note printed at a category, block or chapter applies to every code under it.

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 6 (G00-G99) Diseases of the nervous system applies to 700 codes
  • 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)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Patient EducationClinical

Degenerative Nerve Diseases

Degenerative nerve diseases affect many of your body's activities, such as balance, movement, talking, breathing, and heart function. Many of these diseases are genetic. Sometimes the cause is a medical condition such as alcoholism, a tumor, or a stroke. Other causes may include toxins, chemicals, and viruses.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About G37Overview

What is the ICD-10 code for other demyelinating diseases of central nervous system?

G37 is the ICD-10-CM category for other demyelinating diseases of central nervous system, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is G37 (Other demyelinating diseases of central nervous system) a billable code?

No. This is a category header that groups the codes for other demyelinating diseases of central nervous system, and headers cannot be submitted on claims. Claims for other demyelinating diseases of central nervous system need a more specific code from this category, such as G37.0, G37.1, and G37.2.