2021 ICD-10-CM Diagnosis Code L59.9

Disorder of the skin and subcutaneous tissue related to radiation, unspecified

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • L59.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Disorder of the skin, subcu related to radiation, unsp
  • The 2021 edition of ICD-10-CM L59.9 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of L59.9 - other international versions of ICD-10 L59.9 may differ.
The following code(s) above L59.9 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 L59.9:
  • L00-L99
    2021 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
ICD-10-CM L59.9 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 606 Minor skin disorders with mcc
  • 607 Minor skin disorders without mcc

Convert L59.9 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
  • 2021 (effective 10/1/2020): No change

Diagnosis Index entries containing back-references to L59.9:
  • Effect, adverse
    • radiation (diagnostic) (infrared) (natural source) (therapeutic) (ultraviolet) (X-ray) T66
      ICD-10-CM Diagnosis Code T66

      Radiation sickness, unspecified

        2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
      Type 1 Excludes
      • specified adverse effects of radiation, such as:
      • burns (T20-T31)
      • leukemia (C91-C95)
      • radiation gastroenteritis and colitis (K52.0)
      • radiation pneumonitis (J70.0)
      • radiation related disorders of the skin and subcutaneous tissue (L55-L59)
      • sunburn (L55.-)
      • skin L59.9

ICD-10-CM Codes Adjacent To L59.9
L57.5 Actinic granuloma
L57.8 Other skin changes due to chronic exposure to nonionizing radiation
L57.9 Skin changes due to chronic exposure to nonionizing radiation, unspecified
L58 Radiodermatitis
L58.0 Acute radiodermatitis
L58.1 Chronic radiodermatitis
L58.9 Radiodermatitis, unspecified
L59 Other disorders of skin and subcutaneous tissue related to radiation
L59.0 Erythema ab igne [dermatitis ab igne]
L59.8 Other specified disorders of the skin and subcutaneous tissue related to radiation
L59.9 Disorder of the skin and subcutaneous tissue related to radiation, unspecified
L60 Nail disorders
L60.0 Ingrowing nail
L60.1 Onycholysis
L60.2 Onychogryphosis
L60.3 Nail dystrophy
L60.4 Beau's lines
L60.5 Yellow nail syndrome
L60.8 Other nail disorders
L60.9 Nail disorder, unspecified
L62 Nail disorders in diseases classified elsewhere

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