Is G30 a billable ICD-10-CM code?

No. G30 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does G30 sit in the tabular list?

Diseases of the nervous system (G00-G99), in the block Other degenerative diseases of the nervous system (G30-G32).

What cannot be coded together with G30?

G30 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

G30

G30 — Alzheimer's disease

Non-billable headerICD-10-CM

G30 is a non-billable header ICD-10-CM code for alzheimer's disease. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

senile degeneration of brain NEC (G31.1)
senile dementia NOS (F03.-)
senility NOS (R41.81)

Use additional code

Add a secondary code to capture the detail described below.

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-)

Includes

Conditions this code covers.

Alzheimer's dementia senile and presenile forms

Other codes that can never be billed with G30

These codes carry an Excludes1 note pointing at G30. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading G30 alone.

G31.1Senile degeneration of brain, not elsewhere classified

Risk adjustment

G30 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead G30

4 child codes. Green means billable.

Questions about G30

Is G30 a billable ICD-10-CM code?: No. G30 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does G30 sit in the tabular list?: Diseases of the nervous system (G00-G99), in the block Other degenerative diseases of the nervous system (G30-G32).
What cannot be coded together with G30?: G30 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.