ICD-10-CM · Chapter 2 · C00-D49
C43 Malignant melanoma of skin
Excludes 1 (cannot be coded together)
- melanoma in situ (D03.-)
Excludes 2 (not included here)
- 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
Subcodes
Each subcode links to a detail page with full clinical annotations.
| Code | Description | Billable |
|---|---|---|
| C43..0 | Malignant melanoma of lip | Yes |
| C43..1 | Malignant melanoma of eyelid, including canthus | No |
| C43..10 | Malignant melanoma of unspecified eyelid, including canthus | Yes |
| C43..11 | Malignant melanoma of right eyelid, including canthus | No |
| C43..111 | Malignant melanoma of right upper eyelid, including canthus | Yes |
| C43..112 | Malignant melanoma of right lower eyelid, including canthus | Yes |
| C43..12 | Malignant melanoma of left eyelid, including canthus | No |
| C43..121 | Malignant melanoma of left upper eyelid, including canthus | Yes |
| C43..122 | Malignant melanoma of left lower eyelid, including canthus | Yes |
| C43..2 | Malignant melanoma of ear and external auricular canal | No |
| C43..20 | Malignant melanoma of unspecified ear and external auricular canal | Yes |
| C43..21 | Malignant melanoma of right ear and external auricular canal | Yes |
| C43..22 | Malignant melanoma of left ear and external auricular canal | Yes |
| C43..3 | Malignant melanoma of other and unspecified parts of face | No |
| C43..30 | Malignant melanoma of unspecified part of face | Yes |
| C43..31 | Malignant melanoma of nose | Yes |
| C43..39 | Malignant melanoma of other parts of face | Yes |
| C43..4 | Malignant melanoma of scalp and neck | Yes |
| C43..5 | Malignant melanoma of trunk | No |
| C43..51 | Malignant melanoma of anal skin | Yes |
| C43..52 | Malignant melanoma of skin of breast | Yes |
| C43..59 | Malignant melanoma of other part of trunk | Yes |
| C43..6 | Malignant melanoma of upper limb, including shoulder | No |
| C43..60 | Malignant melanoma of unspecified upper limb, including shoulder | Yes |
| C43..61 | Malignant melanoma of right upper limb, including shoulder | Yes |
| C43..62 | Malignant melanoma of left upper limb, including shoulder | Yes |
| C43..7 | Malignant melanoma of lower limb, including hip | No |
| C43..70 | Malignant melanoma of unspecified lower limb, including hip | Yes |
| C43..71 | Malignant melanoma of right lower limb, including hip | Yes |
| C43..72 | Malignant melanoma of left lower limb, including hip | Yes |
| C43..8 | Malignant melanoma of overlapping sites of skin | Yes |
| C43..9 | Malignant melanoma of skin, unspecified | Yes |
Plain-language term for this code
The following entry in the US Medical Glossary corresponds to ICD-10-CM category C43:
- Melanoma — Melanoma
Last reviewed: September 2026