G30.9 ICD-10-CM Code: Alzheimer's disease, unspecified

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

Official description

G30.9

Alzheimer's disease, unspecified

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

Where G30.9 sits

  1. 1

    Chapter 6

    Diseases of the nervous system (G00-G99)

  2. 2

    Section

    Other degenerative diseases of the nervous system (G30-G32)

  3. 3

    Category G30

    Alzheimer's disease

  4. 4

    Code G30.9

    Alzheimer's disease, unspecified

Notes for this code

Inclusion terms

No inclusion terms are listed for G30.9.

Code first

No “code first” instruction is listed for G30.9.

Use additional code

No “use additional code” instruction is listed for G30.9.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for G30.9.

Excludes2

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

No Excludes2 note is listed for G30.9.

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.

Frequently asked questions

What does ICD-10-CM code G30.9 mean?

G30.9 is the FY 2027 U.S. ICD-10-CM code for “Alzheimer's disease, unspecified.”

Is G30.9 a billable or specific ICD-10-CM code?

Yes. In the FY 2027 reference data used on this page, G30.9 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.

Where is G30.9 located in ICD-10-CM?

G30.9 is listed in Chapter 6, Diseases of the nervous system (G00-G99), within Other degenerative diseases of the nervous system (G30-G32) (G30–G32), under category G30, Alzheimer's disease.

What coding notes are listed for G30.9?

No inclusion terms are listed for G30.9 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.