Dermatitis and eczema, along with several other skin conditions, are rated under one shared formula based on either how much of your body is affected, or how much systemic (not topical-only) treatment you require, whichever produces the higher rating.
"Systemic therapy" specifically means treatment by a route other than skin (oral, injection, suppository, intranasal), a topical cream alone doesn't count toward the therapy-based criteria, even a strong one. However, if a topical treatment covers a large body area, you can still qualify under the body-area criteria instead, document both the percentage of body affected AND your actual treatment regimen.
| Rating | Criteria |
|---|---|
| 60% | Affects more than 40% of the entire body or more than 40% of exposed areas, or requires constant or near-constant systemic therapy during the past 12-month period |
| 30% | Affects 20–40% of the entire body or 20–40% of exposed areas, or requires systemic therapy for a total of 6+ weeks (but not constantly) during the past 12-month period |
| 10% | Affects at least 5% but less than 20% of the entire body or exposed areas, or requires intermittent systemic therapy for a total of less than 6 weeks during the past 12-month period |
| 0% | Affects less than 5% of the body, with no systemic therapy required |