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Pityriasis rosea==
L43 Lichen planus
- Excludes1: lichen planopilaris (L66.1)
- L43.0 Hypertrophic lichen planus
- L43.1 Bullous lichen planus
- L43.2 Lichenoid drug reaction
- Code first (T36-T50) to identify drug
- L43.3 Subacute (active) lichen planus
- Lichen planus tropicus
- L43.8 Other lichen planus
- L43.9 Lichen planus, unspecified
L44 Other papulosquamous disorders
- L44.0 Pityriasis rubra pilaris
- L44.1 Lichen nitidus
- L44.2 Lichen striatus
- L44.3 Lichen ruber moniliformis
- L44.4 Infantile papular acrodermatitis [Gianotti-Crosti]
- L44.8 Other specified papulosquamous disorders
- L44.9 Papulosquamous disorder, unspecified
L45 Papulosquamous disorders in diseases classified elsewhere
- Code first underlying disease.
Urticaria and erythema (L49-L54)
- Excludes1: Lyme disease (A69.2-)
- rosacea (L71.-)
L49 Exfoliation due to erythematous conditions according to extent of body surface involved
- Code first erythematous condition causing exfoliation, such as:
- Ritter's disease (L00)
- (Staphylococcal) scalded skin syndrom (L00)
- Stevens-Johnson syndrome (L51.1)
- Stevens-Johnson syndrome-toxic epidermal necrolysis
- overlap syndrome (L51.3)
- Toxic epidermal necrolysis (L51.2)
- L49.0 Exfoliation due to erythematous condition involving less than 10 percent of body surface
- Exfoliation due to erythematous condition NOS
- L49.1 Exfoliation due to erythematous condition involving 10-19 percent of body surface
- L49.
