2017/18 ICD-10-CM Diagnosis Code L45

Papulosquamous disorders in diseases classified elsewhere

ICD-10-CM Coding Rules
Code First
Code First Help
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.
  • underlying disease.
The following code(s) above L45 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 L45:
  • 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
Approximate Synonyms ICD-10-CM L45 is grouped within Diagnostic Related Group(s) (MS-DRG v35.0):

Convert L45 to ICD-9-CM

Code History

Diagnosis Index entries containing back-references to L45:

ICD-10-CM Codes Adjacent To L45
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
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

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