L41.9

Approximate Synonyms

• Parapsoriasis

Clinical Information

• An inflammatory skin disorder of unknown etiology characterized by papules and plaques or scaly patches resembling psoriasis.

• The term applied to a group of relatively uncommon inflammatory, maculopapular, scaly eruptions of unknown etiology and resistant to conventional treatment. Eruptions are both psoriatic and lichenoid in appearance, but the diseases are distinct from psoriasis, lichen planus, or other recognized dermatoses. Proposed nomenclature divides parapsoriasis into two distinct subgroups, pityriasis lichenoides and parapsoriasis en plaques small- and large-plaque parapsoriasis).

Details

• L41.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

• The 2023 edition of ICD-10-CM L41.9 became effective on October 1, 2022.

• This is the American ICD-10-CM version of L41.9 – other international versions of ICD-10 L41.9 may differ.