G36Header code — not billable

Other acute disseminated demyelination

Chapter
6. Diseases of the nervous system
Category
G36
Effective date
October 1, 2026

Related codes in category G36

G36.0Neuromyelitis optica [Devic]YesG36.1Acute and subacute hemorrhagic leukoencephalitis [Hurst]YesG36.8Other specified acute disseminated demyelinationYesG36.9Acute disseminated demyelination, unspecifiedYes

Frequently asked questions

What is ICD-10 code G36?

G36 is an ICD-10-CM diagnosis code for Other acute disseminated demyelination.

Is G36 a billable code?

No. G36 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is G36 in?

G36 falls under Chapter 6: Diseases of the nervous system.

When did G36 become effective?

G36 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to G36?

G36 belongs to category G36, which includes 4 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.