MCMCB Pro
G31.0

G31.0Frontotemporal dementia

Non-billable headerICD-10-CM

G31.0 is a non-billable header ICD-10-CM code for frontotemporal dementia. It cannot be billed on its own: choose one of the more specific child codes below.

Other codes that can never be billed with G31.0

These codes carry an Excludes1 note pointing at G31.0. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading G31.0 alone.

Risk adjustment

G31.0 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 G31.0

2 child codes. Green means billable.

Related codes at this level

Codes that share G31. If G31.0 is not quite right, the correct code is usually one of these.

Questions about G31.0

Is G31.0 a billable ICD-10-CM code?
No. G31.0 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does G31.0 sit in the tabular list?
Diseases of the nervous system (G00-G99), in the block Other degenerative diseases of the nervous system (G30-G32).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.