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ICD-10-CM Codes L00-L99 L49-L54

Section L49-L54 Urticaria and erythema L49-L54

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( L40-L45 )

( L55-L59 )

Excludes-1 for L49-L54:

Lyme disease (A69.2-)
rosacea (L71.-)

Code List:

L49

Code hierarchy

L49 Exfoliation due to erythematous conditions according to extent of body surface involved
- L49.0 Exfoliation due to erythematous condition involving less than 10 percent of body surface
- L49.1 Exfoliation due to erythematous condition involving 10-19 percent of body surface
- L49.2 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

Exfoliation due to erythematous conditions according to extent of body surface involved

L50

Code hierarchy

L50 Urticaria
- 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
- L50.9 Urticaria, unspecified

Urticaria

L51

Code hierarchy

L51 Erythema multiforme
- L51.0 Nonbullous erythema multiforme
- L51.1 Stevens-Johnson syndrome
- L51.2 Toxic epidermal necrolysis [Lyell]
- L51.3 Stevens-Johnson syndrome-toxic epidermal necrolysis overlap syndrome
- L51.8 Other erythema multiforme
- L51.9 Erythema multiforme, unspecified

Erythema multiforme

L52

Erythema nodosum

L53

Code hierarchy

L53 Other erythematous conditions
- L53.0 Toxic erythema
- L53.1 Erythema annulare centrifugum
- L53.2 Erythema marginatum
- L53.3 Other chronic figurate erythema
- L53.8 Other specified erythematous conditions
- L53.9 Erythematous condition, unspecified

Other erythematous conditions

L54

Erythema in diseases classified elsewhere