2020 ICD-10-CM Diagnosis Code L84

Corns and callosities

    2016 2017 2018 2019 2020 Billable/Specific Code
  • L84 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM L84 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of L84 - other international versions of ICD-10 L84 may differ.
Applicable To
  • Callus
  • Clavus
The following code(s) above L84 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 L84:
  • L00-L99
    2020 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
  • Callosity
  • Callus
  • Callus of foot
  • Callus of heel
  • Corn of toe
  • Foot callus
Clinical Information
  • Corns and calluses are caused by pressure or friction on your skin. They often appear on feet where the bony parts of your feet rub against your shoes. Corns usually appear on the tops or sides of toes while calluses form on the soles of feet. Calluses also can appear on hands or other areas that are rubbed or pressed.wearing shoes that fit better or using non-medicated pads may help. While bathing, gently rub the corn or callus with a washcloth or pumice stone to help reduce the size. To avoid infection, do not try to shave off the corn or callus. See your doctor, especially if you have diabetes or circulation problems. nih: national institute on aging
  • Localized hyperplasia of the horny layer of the epidermis due to pressure or friction. (Dorland, 27th ed)
ICD-10-CM L84 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 606 Minor skin disorders with mcc
  • 607 Minor skin disorders without mcc

Convert L84 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
  • 2020 (effective 10/1/2019): No change

Diagnosis Index entries containing back-references to L84:
  • Callositas, callosity L84 (infected)
  • Callus (infected) L84
  • Clavus L84 (infected)
  • Corn L84 (infected)
  • Heloma L84
  • Tylosis (acquired) L84

ICD-10-CM Codes Adjacent To L84
L81.4 Other melanin hyperpigmentation
L81.5 Leukoderma, not elsewhere classified
L81.6 Other disorders of diminished melanin formation
L81.7 Pigmented purpuric dermatosis
L81.8 Other specified disorders of pigmentation
L81.9 Disorder of pigmentation, unspecified
L82 Seborrheic keratosis
L82.0 Inflamed seborrheic keratosis
L82.1 Other seborrheic keratosis
L83 Acanthosis nigricans
L84 Corns and callosities
L85 Other epidermal thickening
L85.0 Acquired ichthyosis
L85.1 Acquired keratosis [keratoderma] palmaris et plantaris
L85.2 Keratosis punctata (palmaris et plantaris)
L85.3 Xerosis cutis
L85.8 Other specified epidermal thickening
L85.9 Epidermal thickening, unspecified
L86 Keratoderma in diseases classified elsewhere
L87 Transepidermal elimination disorders
L87.0 Keratosis follicularis et parafollicularis in cutem penetrans

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