ICD-10-CM category
C43: Malignant melanoma of skin
Codes under C43 (Malignant melanoma of skin). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| C43.0 | Malignant melanoma of lip | ✓ |
| C43.0 | Malignant melanoma of lip | ✓ |
| C43.1 | Malignant melanoma of eyelid, including canthus | — |
| C43.1 | Malignant melanoma of eyelid, including canthus | — |
| C43.2 | Malignant melanoma of ear and external auricular canal | — |
| C43.2 | Malignant melanoma of ear and external auricular canal | — |
| C43.3 | Malignant melanoma of other and unspecified parts of face | — |
| C43.3 | Malignant melanoma of other and unspecified parts of face | — |
| C43.4 | Malignant melanoma of scalp and neck | ✓ |
| C43.4 | Malignant melanoma of scalp and neck | ✓ |
| C43.5 | Malignant melanoma of trunk | — |
| C43.5 | Malignant melanoma of trunk | — |
| C43.6 | Malignant melanoma of upper limb, including shoulder | — |
| C43.6 | Malignant melanoma of upper limb, including shoulder | — |
| C43.7 | Malignant melanoma of lower limb, including hip | — |
| C43.7 | Malignant melanoma of lower limb, including hip | — |
| C43.8 | Malignant melanoma of overlapping sites of skin | ✓ |
| C43.8 | Malignant melanoma of overlapping sites of skin | ✓ |
| C43.9 | Malignant melanoma of skin, unspecified | ✓ |
| C43.9 | Malignant melanoma of skin, unspecified | ✓ |
| C43.10 | Malignant melanoma of unspecified eyelid, including canthus | ✓ |
| C43.10 | Malignant melanoma of unspecified eyelid, including canthus | ✓ |
| C43.11 | Malignant melanoma of right eyelid, including canthus | — |
| C43.11 | Malignant melanoma of right eyelid, including canthus | — |
| C43.12 | Malignant melanoma of left eyelid, including canthus | — |
| C43.12 | Malignant melanoma of left eyelid, including canthus | — |
| C43.20 | Malignant melanoma of unspecified ear and external auricular canal | ✓ |
| C43.20 | Malignant melanoma of unspecified ear and external auricular canal | ✓ |
| C43.21 | Malignant melanoma of right ear and external auricular canal | ✓ |
| C43.21 | Malignant melanoma of right ear and external auricular canal | ✓ |
| C43.22 | Malignant melanoma of left ear and external auricular canal | ✓ |
| C43.22 | Malignant melanoma of left ear and external auricular canal | ✓ |
| C43.30 | Malignant melanoma of unspecified part of face | ✓ |
| C43.30 | Malignant melanoma of unspecified part of face | ✓ |
| C43.31 | Malignant melanoma of nose | ✓ |
| C43.31 | Malignant melanoma of nose | ✓ |
| C43.39 | Malignant melanoma of other parts of face | ✓ |
| C43.39 | Malignant melanoma of other parts of face | ✓ |
| C43.51 | Malignant melanoma of anal skin | ✓ |
| C43.51 | Malignant melanoma of anal skin | ✓ |
| C43.52 | Malignant melanoma of skin of breast | ✓ |
| C43.52 | Malignant melanoma of skin of breast | ✓ |
| C43.59 | Malignant melanoma of other part of trunk | ✓ |
| C43.59 | Malignant melanoma of other part of trunk | ✓ |
| C43.60 | Malignant melanoma of unspecified upper limb, including shoulder | ✓ |
| C43.60 | Malignant melanoma of unspecified upper limb, including shoulder | ✓ |
| C43.61 | Malignant melanoma of right upper limb, including shoulder | ✓ |
| C43.61 | Malignant melanoma of right upper limb, including shoulder | ✓ |
| C43.62 | Malignant melanoma of left upper limb, including shoulder | ✓ |
| C43.62 | Malignant melanoma of left upper limb, including shoulder | ✓ |
| C43.70 | Malignant melanoma of unspecified lower limb, including hip | ✓ |
| C43.70 | Malignant melanoma of unspecified lower limb, including hip | ✓ |
| C43.71 | Malignant melanoma of right lower limb, including hip | ✓ |
| C43.71 | Malignant melanoma of right lower limb, including hip | ✓ |
| C43.72 | Malignant melanoma of left lower limb, including hip | ✓ |
| C43.72 | Malignant melanoma of left lower limb, including hip | ✓ |
| C43.111 | Malignant melanoma of right upper eyelid, including canthus | ✓ |
| C43.111 | Malignant melanoma of right upper eyelid, including canthus | ✓ |
| C43.112 | Malignant melanoma of right lower eyelid, including canthus | ✓ |
| C43.112 | Malignant melanoma of right lower eyelid, including canthus | ✓ |
| C43.121 | Malignant melanoma of left upper eyelid, including canthus | ✓ |
| C43.121 | Malignant melanoma of left upper eyelid, including canthus | ✓ |
| C43.122 | Malignant melanoma of left lower eyelid, including canthus | ✓ |
| C43.122 | Malignant melanoma of left lower eyelid, including canthus | ✓ |
Frequently asked questions
What is ICD-10-CM code C43?
C43 is an ICD-10-CM category covering Malignant melanoma of skin. It contains 64 more specific diagnosis codes, 48 of which are billable.
Is C43 a billable code?
No — C43 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example C43.0 — Malignant melanoma of lip). 48 of the 64 codes under C43 are billable.
What codes fall under C43?
C43 includes C43.0, C43.0, C43.1, C43.1, C43.2, plus 59 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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