Psoriasis Area and Severity Index Feldman Version Clinical Classification

**Semantic type:** Intellectual Product

**Definition:** A standardized survey developed by Feldman and Krueger in 2005 to calculate the intensity and extent of psoriatic lesions before, during, and after treatment in chronic plaquetype psoriasis. The instrument utilizes a 5-point rating scale to measure intensity and assigns a numerical score for the percentage of anatomical involvement.

**Synonyms:** - PASI FELDMAN - PASI Feldman Version - PASI02