ICD-10 G30
Non-Billable HeaderAlzheimer's disease
About ICD-10-CM G30
ICD-10-CM code G30 represents Alzheimer's disease. This is a non-billable header code in the Nervous System chapter (block G30). The 2026 edition of ICD-10-CM G30 became effective on October 1, 2025. Non-billable codes cannot be used as a primary or secondary diagnosis on a claim, use a more specific child code instead.
Type 1 Excludes
Pure excludes, these codes can never be coded together with G30. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- senile degeneration of brain NEC (G31.1)
- senile dementia NOS (F03.-)
- senility NOS (R41.81)
Includes
- Alzheimer's dementia senile and presenile forms
Use Additional Code
When coding G30, also report these additional codes when applicable.
- 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-)
Medicare LCD Coverage for G30
Local Coverage Determinations (LCDs) from CMS MACs that list G30 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing G30.
1 Humana
CPT Codes Commonly Billed with G30
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Codes Adjacent To G30
Other codes in section G30-G32 (Other degenerative diseases of the nervous system).
ICD-10 G30, Billing FAQ
Is ICD-10 code G30 billable? +
No, G30 is a non-billable header code. Use a more specific child code from block G30 when submitting claims.
What codes are Type 1 Excludes for G30? +
Type 1 Excludes (never code together with G30): senile degeneration of brain NEC (G31.1); senile dementia NOS (F03.-); senility NOS (R41.81)
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 1, 2026.
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