Is L01 a billable ICD-10-CM code?

No. L01 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does L01 sit in the tabular list?

Diseases of the skin and subcutaneous tissue (L00-L99), in the block Infections of the skin and subcutaneous tissue (L00-L08).

What cannot be coded together with L01?

L01 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

L01

L01 — Impetigo

Non-billable headerICD-10-CM

L01 is a non-billable header ICD-10-CM code for impetigo. 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.

impetigo herpetiformis (L40.1)

Other codes that can never be billed with L01

These codes carry an Excludes1 note pointing at L01. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading L01 alone.

L10Pemphigus
L00Staphylococcal scalded skin syndrome

Risk adjustment

L01 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 L01

2 child codes. Green means billable.

Questions about L01

Is L01 a billable ICD-10-CM code?: No. L01 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does L01 sit in the tabular list?: Diseases of the skin and subcutaneous tissue (L00-L99), in the block Infections of the skin and subcutaneous tissue (L00-L08).
What cannot be coded together with L01?: L01 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.