U.S. ICD-10-CM · FY 2027

G13 ICD-10-CM Code: Systemic atrophies primarily affecting central nervous system in diseases classified elsewhere

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

Code definition

Official description

G13

Systemic atrophies primarily affecting central nervous system in diseases classified elsewhere

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

Classification

Where G13 sits

  1. 1

    Chapter 6

    Diseases of the nervous system (G00-G99)

  2. 2

    Section

    Systemic atrophies primarily affecting the central nervous system (G10-G14)

  3. 3

    Category G13

    Systemic atrophies primarily affecting central nervous system in diseases classified elsewhere

  4. 4

    Code G13

    Systemic atrophies primarily affecting central nervous system in diseases classified elsewhere

More specific choices

Codes under G13

G13 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 G13.

Code first

No “code first” instruction is listed for G13.

Use additional code

No “use additional code” instruction is listed for G13.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for G13.

Excludes2

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

No Excludes2 note is listed for G13.

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 G13 mean?

G13 is the FY 2027 U.S. ICD-10-CM code for “Systemic atrophies primarily affecting central nervous system in diseases classified elsewhere.”

Is G13 a billable or specific ICD-10-CM code?

No. G13 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 G13 located in ICD-10-CM?

G13 is listed in Chapter 6, Diseases of the nervous system (G00-G99), within Systemic atrophies primarily affecting the central nervous system (G10-G14) (G10–G14), under category G13, Systemic atrophies primarily affecting central nervous system in diseases classified elsewhere.

What coding notes are listed for G13?

No inclusion terms are listed for G13 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.

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