G30.9

Billable

ChapterG00–G99

Ranksubcategory

Official Description

Alzheimer's disease, unspecified

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Billable/specific code (valid for reimbursement).
•Chapter 6: Diseases of the Nervous System (G00-G99).

General instructions are available for the parent sections:

View CH6 Notes View G30 Notes

Clinical Hierarchy

CH6Diseases of the nervous system (G00-G99)

G30-G32Other degenerative diseases of the nervous system (G30-G32)

G30Alzheimer's disease

G30.9Alzheimer's disease, unspecified

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to G30.9:

categoryG30

Alzheimer's disease

View context instructions

chapterCH6

Diseases of the nervous system (G00-G99)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to G30.9. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

2 raw paths

Disease, diseased2 unique routes

Alzheimer's→G30.9(2 variants)

with behavioral disturbance→G30.9

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 056

Degenerative Nervous System Disorders with MCC

DRG 057

Degenerative Nervous System Disorders without MCC

Cross Reference

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Find surgical and procedural codes related to Alzheimer's disease, unspecified.

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