L42Billable
Pityriasis rosea
- Chapter
- 12. Diseases of the skin and subcutaneous tissue
- Category
- L42
- Effective date
- October 1, 2026
Frequently asked questions
What is ICD-10 code L42?
L42 is an ICD-10-CM diagnosis code for Pityriasis rosea.
Is L42 a billable code?
Yes. L42 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is L42 in?
L42 falls under Chapter 12: Diseases of the skin and subcutaneous tissue.
When did L42 become effective?
L42 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.