2024 ICD-10-CM Diagnosis Code C43.1

Malignant melanoma of eyelid, including canthus

  • C43.1 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2024 edition of ICD-10-CM C43.1 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of C43.1 – other international versions of ICD-10 C43.1 may differ.

The following code(s) above C43.1 contain annotation back-references

 that may be applicable to C43.1:

  • C00-D49  Neoplasms
  • C43  Malignant melanoma of skin

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
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
  • 2024 (effective 10/1/2023): No change

Code annotations containing back-references to C43.1:

  • Type 1 Excludes: C69

Diagnosis Index entries containing back-references to C43.1:

  • Melanoma (malignant) C43.9
    • skinC43.9
      • canthus C43.1- (eye)
      • eyelid C43.1- (lower) (upper)
      • palpebra C43.1-