U.S. ICD-10-CM · FY 2027

G36 ICD-10-CM Code: Other acute disseminated demyelination

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

G36

Other acute disseminated demyelination

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where G36 sits

  1. 1

    Chapter 6

    Diseases of the nervous system (G00-G99)

  2. 2

    Section

    Demyelinating diseases of the central nervous system (G35-G37)

  3. 3

    Category G36

    Other acute disseminated demyelination

  4. 4

    Code G36

    Other acute disseminated demyelination

More specific choices

Codes under G36

G36 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for G36.

Code first

No “code first” instruction is listed for G36.

Use additional code

No “use additional code” instruction is listed for G36.

Excludes1

Conditions that should not be reported together with this code.

  • postinfectious encephalitis and encephalomyelitis NOS (G04.01)

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for G36.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code G36 mean?

G36 is the FY 2027 U.S. ICD-10-CM code for “Other acute disseminated demyelination.”

Is G36 a billable or specific ICD-10-CM code?

No. G36 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is G36 located in ICD-10-CM?

G36 is listed in Chapter 6, Diseases of the nervous system (G00-G99), within Demyelinating diseases of the central nervous system (G35-G37) (G35–G37), under category G36, Other acute disseminated demyelination.

What coding notes are listed for G36?

No inclusion terms are listed for G36 in this reference record. No code-first instruction is listed. Excludes1 notes: postinfectious encephalitis and encephalomyelitis NOS (G04.01). No Excludes2 note is listed.

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