2026 ICD-10-CM Diagnosis Code G36Other acute disseminated demyelination

ICD-10-CM CodesG00–G99G35-G37G36

ICD-10-CM G36
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

G36 is a non-billable ICD-10-CM category code for other acute disseminated demyelination, so it cannot be submitted on claims. Use a more specific code from this category instead, such as G36.0, G36.1, G36.8, and G36.9.

Code Identity

ICD-10-CM Code
G36
Billable Status
No — Non-Billable Category
Code Describes
Other acute disseminated demyelination
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
CategoryG36Other acute disseminated demyelination
This CodeG36Other acute disseminated demyelination

Specific Coding for Other acute disseminated demyelinationOverview

Non-specific codes like G36 require more characters. Use one of these billable codes instead:

  • Use G36.0 for Neuromyelitis optica [Devic]

  • Use G36.1 for Acute and subacute hemorrhagic leukoencephalitis [Hurst]

  • Use G36.8 for Other specified acute disseminated demyelination

  • Use G36.9 for Acute disseminated demyelination, unspecified

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Type 1 Excludes

  • postinfectious encephalitis and encephalomyelitis NOS G04.01

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 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About G36Overview

Is G36 (Other acute disseminated demyelination) a billable code?

No. This is a category header that groups the codes for other acute disseminated demyelination, and headers cannot be submitted on claims. Claims for other acute disseminated demyelination need a more specific code from this category, such as G36.0, G36.1, and G36.8.