2019 ICD-10-CM Diagnosis Code L51.2

Toxic epidermal necrolysis [Lyell]

    2016 2017 2018 2019 Billable/Specific Code
  • L51.2 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2019 edition of ICD-10-CM L51.2 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of L51.2 - other international versions of ICD-10 L51.2 may differ.
The following code(s) above L51.2 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 L51.2:
  • L00-L99
    2019 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
    2019 ICD-10-CM Range L49-L54

    Urticaria and erythema

    Type 1 Excludes
    Urticaria and erythema
  • L51
    ICD-10-CM Diagnosis Code L51

    Erythema multiforme

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • staphylococcal scalded skin syndrome (L00)
    • Ritter's disease (L00)
    Use Additional
    • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
    Erythema multiforme
Approximate Synonyms
  • Lyell's toxic epidermal necrolysis, subepidermal type
  • Toxic epidermal necrolysis
Clinical Information
  • A disorder characterized by greater than 30% total body skin area separation of dermis. The syndrome is thought to be a hypersensitivity complex affecting the skin and the mucous membranes.
  • A systemic, serious, and life-threatening disorder characterized by erythematous and necrotic lesions in the skin and mucous membranes that are associated with bullous detachment of the epidermis. The epidermal and mucous membranes detachment leads to sepsis and may be fatal. The lesions appear throughout the body and occupy more than 30% of the body surfaces. It is a hypersensitivity reaction usually caused by drugs (e.g., sulfonamides, nonsteroidal anti-inflammatory drugs, anticonvulsants, and antiretroviral drugs).
  • An exfoliative disease of skin seen primarily in adults and characterized by flaccid bullae and spreading erythema so that the skin has the appearance of being scalded. It results primarily from a toxic reaction to various drugs, but occasionally occurs as a result of infection, neoplastic conditions, or other exposure.
  • An exfoliative skin disease caused by a toxic reaction to drugs, infections, and substance exposure.
ICD-10-CM L51.2 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):
  • 595 Major skin disorders with mcc
  • 596 Major skin disorders without mcc

Convert L51.2 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
Code annotations containing back-references to L51.2:
  • Code First: L49
    ICD-10-CM Diagnosis Code L49

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

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    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)
  • Type 1 Excludes: L00
    ICD-10-CM Diagnosis Code L00

    Staphylococcal scalded skin syndrome

      2016 2017 2018 2019 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.-)

Diagnosis Index entries containing back-references to L51.2:

ICD-10-CM Codes Adjacent To L51.2
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
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
L52 Erythema nodosum
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

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