G30.9 ALZHEIMER'S DISEASE, UNSPECIFIED

Code Information

Diagnosis Code: G30.9
Short Description: Alzheimer's disease, unspecified
Long Description: Alzheimer's disease, unspecified
Code Version: 2025 ICD-10-CM

The code G30.9 is VALID for claim submission

Code Classification

Diseases of the nervous system (G00–G99)
- Other degenerative diseases of the nervous system (G30-G32)
  - Alzheimer's disease (G30)

Synonyms

Alzheimer's disease
Alzheimer's disease with altered behavior
Alzheimer's disease with delirium
Alzheimer's disease with delusions
Alzheimer's disease with depressed mood
Alzheimer's disease with progressive aphasia
Alzheimer's disease with psychosis
Dementia of the Alzheimer type with behavioral disturbance
Dementia with behavioral disturbance
Dementia with behavioral disturbance
Depressed mood
Focal Alzheimer's disease
Late onset Alzheimer's dementia with behavioral disturbance
Progressive aphasia

Crosswalk Information

ICD-10 Code		ICD-9 Code	ICD-9 Description
G30.9		331.0	Alzheimer's disease

This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code	ICD-10 Description
G30	Alzheimer's disease
G30.0	Alzheimer's disease with early onset
G30.1	Alzheimer's disease with late onset
G30.8	Other Alzheimer's disease

This page was last updated on: 10/1/2025

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