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EA94 Pityriasis rubra pilaris

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01

Pityriasis rubra pilaris (PRP) is the name given to a group of clinically similar papulosquamous dermatoses of unknown aetiology. They initially present with erythematous, hyperkeratotic perifollicular papules, which tend to coalesce into plaques, but may progress to erythroderma, particularly in adults. The distribution, age of onset and speed of onset differ markedly between patients and these differences have been used to classify PRP into a number of clinically distinct subtypes.

synonyms

• Pityriasis rubra pilaris
• PRP - [pityriasis rubra pilaris]
• Devergie's disease
• Pityriasis rubra pilaris, adult
• Pityriasis rubra pilaris type I, classical adult
• Pityriasis rubra pilaris type II, atypical adult
• Pityriasis rubra pilaris, juvenile
• Pityriasis rubra pilaris type III, classical juvenile
• Pityriasis rubra pilaris type IV, circumscribed juvenile
• Pityriasis rubra pilaris type V, atypical juvenile
• HIV-associated pityriasis rubra pilaris

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