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ICD-10-CM category G30: Alzheimer's disease

Category G30 is a heading in chapter 6 (Diseases of the nervous system (G00-G99)), section Other degenerative diseases of the nervous system (G30-G32). It is not billable; report one of the 4 complete codes below.

Notes that apply to every G30 code

Includes
  • Alzheimer's dementia senile and presenile forms
Excludes1 (never coded together)
  • 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-)

Billable codes in G30

Billable FY2027 ICD-10-CM codes in category G30
CodeDescription
G30.0Alzheimer's disease with early onset
G30.1Alzheimer's disease with late onset
G30.8Other Alzheimer's disease
G30.9Alzheimer's disease, unspecified

Sources

Every figure on this page is taken from the CMS publications below, as released by the Centers for Medicare & Medicaid Services. Projection built 2026-10-10. Verify against the primary file before billing or contracting decisions. The reference methodology explains how each figure is computed from these files.

Codes from the FY2027 ICD-10-CM files (all chapters). Report the code that matches the documentation and the Official Guidelines; this list is not coding advice.