ICD-10-CM G30 is the diagnosis code for Alzheimer's disease. This code falls under the section "Other degenerative diseases of the nervous system" within Chapter 6 — Diseases of the nervous system (G00-G99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as G30. They are mutually exclusive:
Understanding where G30 sits in the ICD-10-CM classification helps ensure proper coding:
No, G30 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
G30 is the ICD-10-CM diagnosis code for "Alzheimer's disease". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
G30 is located in Section G30-G32 — "Other degenerative diseases of the nervous system" within Chapter 6 of the ICD-10-CM Tabular List.
G30 has 4 sub-code(s) that provide more specific detail: G30.0, G30.1, G30.8, G30.9.
Use G30 when the patients documented diagnosis matches "Alzheimer's disease" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Alzheimer's disease is G30.
No, G30 is non-billable. Use a more specific sub-code for primary diagnosis billing.
G30 is in Chapter 6 of the ICD-10-CM Tabular List.
Type 1 Excludes for G30 include: senile degeneration of brain NEC (G31.1); senile dementia NOS (F03.-); senility NOS (R41.81).
Yes, G30 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.