Is L42 a billable ICD-10-CM code?

Yes. L42 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does L42 sit in the tabular list?

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

L42

L42 — Pityriasis rosea

Billable / specific codeICD-10-CM

L42 is a billable, specific ICD-10-CM code for pityriasis rosea. It is valid for submission on a claim.

Risk adjustment

L42 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.

How L42 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to L42.

Gibert's disease or pityriasis
Disease, diseased›Gibert's(pityriasis rosea)
Pityriasis›circinata(et maculata)
Pityriasis›rosea
Disease, diseased›Hebra's›pityriasis›maculata et circinata

Questions about L42

Is L42 a billable ICD-10-CM code?: Yes. L42 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does L42 sit in the tabular list?: Diseases of the skin and subcutaneous tissue (L00-L99), in the block Papulosquamous disorders (L40-L45).