ICD-10-CM L42 is the diagnosis code for Pityriasis rosea. This code falls under the section "Papulosquamous disorders" within Chapter 12 — Diseases of the skin and subcutaneous tissue (L00-L99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where L42 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, L42 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
L42 is the ICD-10-CM diagnosis code for "Pityriasis rosea". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
L42 is located in Section L40-L45 — "Papulosquamous disorders" within Chapter 12 of the ICD-10-CM Tabular List.
Use L42 when the patients documented diagnosis matches "Pityriasis rosea" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Pityriasis rosea is L42.
Yes, L42 can be used as a primary diagnosis code since it is billable and specific.
L42 is in Chapter 12 of the ICD-10-CM Tabular List.
Yes, L42 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.