2018 ICD-10-CM Diagnosis Code L49

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

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Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
  • erythematous condition causing exfoliation, such as:
  • Ritter's disease (
    ICD-10-CM Diagnosis Code L00

    Staphylococcal scalded skin syndrome

      2016 2017 2018 Billable/Specific Code
    Applicable To
    • Ritter's disease
    Type 1 Excludes
    • bullous impetigo (L01.03)
    • pemphigus neonatorum (L01.03)
    • toxic epidermal necrolysis [Lyell] (L51.2)
    Use Additional
    • code to identify percentage of skin exfoliation (L49.-)
    L00
    )
  • (Staphylococcal) scalded skin syndrom (
    ICD-10-CM Diagnosis Code L00

    Staphylococcal scalded skin syndrome

      2016 2017 2018 Billable/Specific Code
    Applicable To
    • Ritter's disease
    Type 1 Excludes
    • bullous impetigo (L01.03)
    • pemphigus neonatorum (L01.03)
    • toxic epidermal necrolysis [Lyell] (L51.2)
    Use Additional
    • code to identify percentage of skin exfoliation (L49.-)
    L00
    )
  • Stevens-Johnson syndrome (
    ICD-10-CM Diagnosis Code L51.1

    Stevens-Johnson syndrome

      2016 2017 2018 Billable/Specific Code
    L51.1
    )
  • Stevens-Johnson syndrome-toxic epidermal necrolysis
  • overlap syndrome (
    ICD-10-CM Diagnosis Code L51.3

    Stevens-Johnson syndrome-toxic epidermal necrolysis overlap syndrome

      2016 2017 2018 Billable/Specific Code
    Applicable To
    • SJS-TEN overlap syndrome
    L51.3
    )
  • Toxic epidermal necrolysis (
    ICD-10-CM Diagnosis Code L51.2

    Toxic epidermal necrolysis [Lyell]

      2016 2017 2018 Billable/Specific Code
    L51.2
    )
The following code(s) above L49 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to L49:
  • L00-L99
    2018 ICD-10-CM Range L00-L99

    Diseases of the skin and subcutaneous tissue

    Type 2 Excludes
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • lipomelanotic reticulosis (I89.8)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    • systemic connective tissue disorders (M30-M36)
    • viral warts (B07.-)
    Diseases of the skin and subcutaneous tissue
  • L49-L54
    2018 ICD-10-CM Range L49-L54

    Urticaria and erythema

    Type 1 Excludes
    Urticaria and erythema
Code History
Code annotations containing back-references to L49:
ICD-10-CM Codes Adjacent To L49
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
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

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.