C43

icd
Non-Billable

Malignant melanoma of skin


Guidelines

Excludes1
C43melanoma in situ (D03.-)
Excludes 2
C43
  • malignant melanoma of skin of genital organs (C51-C52, C60.-, C63.-)
  • Merkel cell carcinoma (C4A.-)
  • sites other than skin-code to malignant neoplasm of the site
Notes
2
  • Functional activity
  • All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.
  • Morphology [Histology]
  • Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes.
  • Primary malignant neoplasms overlapping site boundaries
  • A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned.
  • Malignant neoplasm of ectopic tissue
  • Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9).

Related Codes

C43icd
Malignant melanoma of skin
Malignant melanoma of lip
Malignant melanoma of eyelid, including canthus
Malignant melanoma of unspecified eyelid, including canthus
Malignant melanoma of right eyelid, including canthus
Malignant melanoma of right upper eyelid, including canthus
Malignant melanoma of right lower eyelid, including canthus
Malignant melanoma of left eyelid, including canthus
Malignant melanoma of left upper eyelid, including canthus
Malignant melanoma of left lower eyelid, including canthus