Is G93 a billable ICD-10-CM code?

No. G93 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does G93 sit in the tabular list?

Diseases of the nervous system (G00-G99), in the block Other disorders of the nervous system (G89-G99).

G93

G93 — Other disorders of brain

Non-billable headerICD-10-CM

G93 is a non-billable header ICD-10-CM code for other disorders of brain. It cannot be billed on its own: choose one of the more specific child codes below.

Other codes that can never be billed with G93

These codes carry an Excludes1 note pointing at G93. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading G93 alone.

Q04.6Congenital cerebral cysts
R53.82Chronic fatigue, unspecified
R60Edema, not elsewhere classified
A85Other viral encephalitis, not elsewhere classified
E88.4Mitochondrial metabolism disorders
G04Encephalitis, myelitis and encephalomyelitis
G71.3Mitochondrial myopathy, not elsewhere classified

Risk adjustment

G93 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 G93

10 child codes. Green means billable.

Questions about G93

Is G93 a billable ICD-10-CM code?: No. G93 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does G93 sit in the tabular list?: Diseases of the nervous system (G00-G99), in the block Other disorders of the nervous system (G89-G99).