Is G40.0 a billable ICD-10-CM code?

No. G40.0 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does G40.0 sit in the tabular list?

Diseases of the nervous system (G00-G99), in the block Episodic and paroxysmal disorders (G40-G47).

What cannot be coded together with G40.0?

G40.0 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

G40.0

G40.0 — Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset

Non-billable headerICD-10-CM

G40.0 is a non-billable header ICD-10-CM code for localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset. 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.

adult onset localization-related epilepsy (G40.1-, G40.2-)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Benign childhood epilepsy with centrotemporal EEG spikes
Childhood epilepsy with occipital EEG paroxysms

Risk adjustment

G40.0 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 G40.0

2 child codes. Green means billable.

Related codes at this level

Codes that share G40. If G40.0 is not quite right, the correct code is usually one of these.

Questions about G40.0

Is G40.0 a billable ICD-10-CM code?: No. G40.0 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does G40.0 sit in the tabular list?: Diseases of the nervous system (G00-G99), in the block Episodic and paroxysmal disorders (G40-G47).
What cannot be coded together with G40.0?: G40.0 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.