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 2 Exfoliation due to erythematous condition involving 20-29 percent of body surface
 * L49.3 Exfoliation due to erythematous condition involving 30-39 percent of body surface
 * L49.4 Exfoliation due to erythematous condition involving 40-49 percent of body surface
 * L49.5 Exfoliation due to erythematous condition involving 50-59 percent of body surface
 * L49.6 Exfoliation due to erythematous condition involving 60-69 percent of body surface
 * L49.7 Exfoliation due to erythematous condition involving 70-79 percent of body surface
 * L49.8 Exfoliation due to erythematous condition involving 80-89 percent of body surface
 * L49.9 Exfoliation due to erythematous condition involving 90 or more percent of body surface

L50 Urticaria

 * Excludes1: allergic contact dermatitis (L23.-)
 * angioneurotic edema (T78.3)
 * giant urticaria (T78.3)
 * hereditary angio-edema (D84.1)
 * Quincke's edema (T78.3)
 * serum urticaria (T80.6)
 * solar urticaria (L56.3)
 * urticaria neonatorum (P83.8)
 * urticaria papulosa (L28.2)
 * urticaria pigmentosa (Q82.2)
 * L50.0 Allergic urticaria
 * L50.1 Idiopathic urticaria
 * L50.2 Urticaria due to cold and heat
 * L50.3 Dermatographic urticaria
 * L50.4 Vibratory urticaria
 * L50.5 Cholinergic urticaria
 * L50.6 Contact urticaria
 * L50.8 Other urticaria
 * Chronic urticaria
 * Recurrent periodic urticaria
 * L50.9 Urticaria, unspecified

L51 Erythema multiforme

 * Code first (T36-T50) to identify drug, if drug-induced
 * Use additional code to identify associated manifestations, such as:
 * arthropathy associated with dermatological disorders (M14.8-)
 * conjunctival edema (H11.42)
 * conjunctivitis (H10.22-)
 * corneal