Pityriasis rosea
Chapter 12:Diseases of the skin and subcutaneous tissue
ICD-10 L42 is a billable code used to indicate a diagnosis of pityriasis rosea.
Pityriasis rosea is a common skin condition characterized by a distinctive rash that typically begins with a single, large patch known as a herald patch, followed by smaller lesions that develop in a Christmas tree pattern on the trunk and limbs. The exact cause of pityriasis rosea is not well understood, but it is believed to be related to viral infections, particularly human herpesvirus 6 and 7. The condition is usually self-limiting, resolving within 6 to 8 weeks without treatment, although symptomatic relief may be provided for itching or discomfort. It is important for healthcare providers to differentiate pityriasis rosea from other skin conditions, such as psoriasis or tinea corporis, to ensure appropriate management and avoid unnecessary interventions.
Standard ICD-10-CM documentation requirements apply
Various clinical presentations within this specialty area
Follow specialty-specific billing guidelines
Standard ICD-10-CM documentation requirements apply
Various clinical presentations within this specialty area
Follow specialty-specific billing guidelines
L42 specifically covers pityriasis rosea, which is characterized by a specific rash pattern and is distinct from other skin disorders.
L42 codes should be used when a patient presents with the characteristic symptoms of pityriasis rosea, including the herald patch and subsequent rash, after ruling out other conditions.
Documentation should include a description of the rash, any associated symptoms such as itching, and a note on the duration of the condition, along with any differential diagnoses considered.
