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Table 1 ICD9/ICD10 diagnosis codes for MCI and AD

From: Prediction of conversion from mild cognitive impairment to Alzheimer’s disease and simultaneous feature selection and grouping using Medicaid claim data

Code

Name

Class

Vocabulary

G31.84

Mild cognitive impairment, so stated

5-char billing code

ICD10CM

331.83

Mild cognitive impairment, so stated

5-dig billing code

ICD9CM

G30.8

Other Alzheimer disease

ICD10 code

ICD10

G30.9

Alzheimer disease, unspecified

ICD10 code

ICD10

G30.0

Alzheimer disease with early onset

ICD10 code

ICD10

G30.1

Alzheimer disease with late onset

ICD10 code

ICD10

G30.8

Other Alzheimer's disease

4-char billing code

ICD10CM

G30.1

Alzheimer's disease with late onset

4-char billing code

ICD10CM

G30.0

Alzheimer's disease with early onset

4-char billing code

ICD10CM

G30

Alzheimer's disease

3-char non-bill code

ICD10CM

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Alzheimer's Research & Therapy

ISSN: 1758-9193