ICD-10 Code C43.12

Malignant melanoma of left eyelid, including canthus

Version 2019 Replaced Code Non-Billable Code
ICD-10: C43.12
Short Description:Malignant melanoma of left eyelid, including canthus
Long Description:Malignant melanoma of left eyelid, including canthus

Not Valid for Submission

ICD-10 C43.12 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of malignant melanoma of left eyelid, including canthus. The code is NOT valid for the year 2019 for the submission of HIPAA-covered transactions.

Consider the following ICD-10 codes with a higher level of specificity:

  • C43.121 - Malignant melanoma of left upper eyelid, including canthus
  • C43.122 - Malignant melanoma of left lower eyelid, including canthus

Deleted Code

This code was deleted in the 2019 ICD-10 code set with the code(s) listed below. The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2018. This code was replaced for the FY 2019 (October 1, 2018 - September 30, 2019).

  • C43.121 - Malignant melanoma of left upper eyelid, including canthus
  • C43.122 - Malignant melanoma of left lower eyelid, including canthus

Code Classification

  • Neoplasms (C00–D48)
    • Melanoma and other malignant neoplasms of skin (C43-C44)
      • Malignant melanoma of skin (C43)

Information for Medical Professionals

Convert C43.12 to ICD-9

The following crosswalk between ICD-10 to ICD-9 is based based on the General Equivalence Mappings (GEMS) information:

  • 172.1 - Malig melanoma eyelid (Approximate Flag)

Information for Patients


Melanoma

Melanoma is the most serious type of skin cancer. Often the first sign of melanoma is a change in the size, shape, color, or feel of a mole. Most melanomas have a black or black-blue area. Melanoma may also appear as a new mole. It may be black, abnormal, or "ugly looking."

Thinking of "ABCDE" can help you remember what to watch for:

  • Asymmetry - the shape of one half does not match the other
  • Border - the edges are ragged, blurred or irregular
  • Color - the color is uneven and may include shades of black, brown and tan
  • Diameter - there is a change in size, usually an increase
  • Evolving - the mole has changed over the past few weeks or months

Surgery is the first treatment of all stages of melanoma. Other treatments include chemotherapy and radiation, biologic, and targeted therapies. Biologic therapy boosts your body's own ability to fight cancer. Targeted therapy uses substances that attack cancer cells without harming normal cells.

NIH: National Cancer Institute

  • After chemotherapy - discharge (Medical Encyclopedia)
  • Melanoma (Medical Encyclopedia)
  • Melanoma of the eye (Medical Encyclopedia)
  • Understanding Chemotherapy - NIH - Easy-to-Read (National Cancer Institute)
  • What to Know about External Beam Radiation Therapy - NIH - Easy-to-Read (National Cancer Institute)

[Learn More]

ICD-10 Footnotes

General Equivalence Map Definitions
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
  • No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
  • Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.