The ICD-10-CM code for Alzheimer's disease is
G30 (FY2026).
It is a non-billable category code — select a more specific code below for claims.
Classification
Section
G30-G32: Other degenerative diseases of the nervous system (G30-G32)
Category G30
5 codes (4 billable)
FY2026 Status
Stable since FY2024
Includes
Alzheimer's dementia senile and presenile forms
Excludes1
Not coded here. These conditions should NOT be coded together with G30.
senile degeneration of brain NEC (G31.1)
senile dementia NOS (F03.-)
senility NOS (R41.81)
Use Additional Code
code, if applicable, to identify:
delirium, if applicable (F05)
dementia with anxiety (F02.84, F02.A4, F02.B4, F02.C4)
dementia with behavioral disturbance (F02.81-, F02.A1-, F02.B1-, F02.C1-)
dementia with mood disturbance (F02.83, F02.A3, F02.B3, F02.C3)
dementia with psychotic disturbance (F02.82, F02.A2, F02.B2, F02.C2)
dementia without behavioral disturbance (F02.80, F02.A0, F02.B0, F02.C0)
mild neurocognitive disorder due to known physiological condition (F06.7-)
Official Coding Guidelines
Dominant/nondominant side (TOC entry)
a. Dominant/nondominant side ................................................................................................. 45
— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.6.a
Pain - Category G89 (TOC entry)
b. Pain - Category G89.............................................................................................................. 45
— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.6.b
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026