Is ICD-10-CM code G30 billable?

No, G30 (Alzheimer's disease) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code G30 belong to?

G30 belongs to Chapter 6 of the ICD-10-CM tabular list: G00–G99 (Diseases of the Nervous System).

G30Not billable, use a more specific code below

Alzheimer's disease

In Other degenerative diseases of the nervous system (G30-G32), chapter 6: Diseases of the Nervous System

4 billable codes under G30: none are a CC or MCC; all map to HCC 127 (Dementia, Mild or Unspecified).An HCC counts toward a Medicare Advantage patient's risk score.

Instructional notes

Includes: conditions that are coded here

Alzheimer's dementia senile and presenile forms

Excludes1: not coded here, use a different code

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

Use additional code: add a second code for this, listed after this one

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

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Covers default dominant or nondominant side for hemiplegia and monoplegia, and use and sequencing of G89 pain codes, including postoperative, chronic, and neoplasm-related pain.

Dominant/nondominant side (page 45)
Pain - Category G89 (page 45)

Read Section I.C.6 (page 45)

All codes under G30

G30 can't be used on a claim. Pick a billable code below; grey headings group them.

G30 MS-DRGs

As the principal diagnosis, all 4 billable codes under G30 group to MS-DRG 056 or 057 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

Other codes that refer to G30

Notes on these codes point to G30.

F02 Code First: Alzheimer's (G30.-)
F06.7 Code First: Alzheimer's disease (G30.-)
G31.1 Excludes1: Alzheimer's disease (G30.-)
Z91.83 Code First: Alzheimer's disease (G30.-)

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

Alzheimer's Disease

Alzheimer's disease (AD) is the most common form of dementia among older people. Dementia is a brain disorder that seriously affects thinking and memory skills. If you have AD, it can impair your ability to reason or learn new skills until it becomes difficult to complete daily activities.

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.