Melanoma and other malignant neoplasms of skin (C43-C44) ICD-10-CM
The C43–C44 section covers melanoma and other malignant neoplasms of skin with 180 ICD-10-CM diagnosis codes, of which 125 are billable in fiscal year 2027. The section is organized into the 2 code ranges listed below.
Code Ranges in This Section 2 ranges · 180 codes
| Code Range | Title | Codes | Billable |
|---|---|---|---|
| C43 | Malignant melanoma of skin (C43) | 33 | 24 |
| C44 | Other and unspecified malignant neoplasm of skin (C44) | 147 | 101 |
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the C43–C44 Code Range
These skin cancers include melanoma, Merkel cell carcinoma, and other or unspecified malignant skin growths.
The categories separate the cancers by type: C43 is melanoma, C44 is other or unspecified skin cancer, and C4A is Merkel cell carcinoma. Within each category, subdivisions identify the location, such as the eyelid, trunk, or limb. Each also has options for overlapping sites and unspecified cases.
Questions About This Page
How many codes are in the C43-C44 range?
The C43-C44 range contains 180 ICD-10-CM diagnosis codes in FY 2027. 125 of them are billable, and the rest are category headers that organize the section.
What conditions does C43-C44 cover?
The range covers melanoma and other malignant neoplasms of skin. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
