Is L43 a billable ICD-10-CM code?

No. L43 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does L43 sit in the tabular list?

Diseases of the skin and subcutaneous tissue (L00-L99), in the block Papulosquamous disorders (L40-L45).

What cannot be coded together with L43?

L43 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

L43

L43 — Lichen planus

Non-billable headerICD-10-CM

L43 is a non-billable header ICD-10-CM code for lichen planus. 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.

lichen planopilaris (L66.1-)

Risk adjustment

L43 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 L43

6 child codes. Green means billable.

Questions about L43

Is L43 a billable ICD-10-CM code?: No. L43 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does L43 sit in the tabular list?: Diseases of the skin and subcutaneous tissue (L00-L99), in the block Papulosquamous disorders (L40-L45).
What cannot be coded together with L43?: L43 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.