G36.0 – Neuromyelitis optica [Devic]

ICD-10-CM 2027 diagnosis code · Demyelinating diseases of the central nervous system

Billable code

ICD-10-CM code G36.0

Code: G36.0 (claims format: G360)
Description: Neuromyelitis optica [Devic]
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 6. Diseases of the nervous system (G00-G99)
Block: G35-G37 Demyelinating diseases of the central nervous system
Parent codes: G36

Notes for G36.0

Applicable to:

Demyelination in optic neuritis

Excludes2 (not included here):

optic neuritis NOS (H46)

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

G36 – Other acute disseminated demyelination

Excludes1 (not coded here):

postinfectious encephalitis and encephalomyelitis NOS (G04.01)

Index terms for G36.0

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in G36

Frequently asked questions

What is ICD-10 code G36.0?

G36.0 is the ICD-10-CM code for neuromyelitis optica [Devic], in the block G35-G37 (Demyelinating diseases of the central nervous system).

Is G36.0 a billable code?

Yes. G36.0 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does G36.0 belong to?

It belongs to category G36 – Other acute disseminated demyelination.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.