C43.10: Malignant melanoma of unspecified eyelid, including canthus
C43.10 is a billable, specific ICD-10-CM code for malignant melanoma of unspecified eyelid, including canthus. It is valid for submission on a claim.
Check C43.10 with the rest of the claim: free scrubberExcludes1 inherited from the categories above C43.10
A category’s note binds every code beneath it.
Excludes2 inherited from the categories above C43.10
Not part of this code, but both may be coded when both are present.
Other codes that can never be billed with C43.10
Their own Excludes1 notes name this code, so the conflict is not listed above.
- C44Other and unspecified malignant neoplasm of skin
Risk adjustment
C43.10 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 23 Prostate, Breast, and Other Cancers and Tumors0.186 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.
Medicare coverage
C43.10 is named in 45 Medicare coverage policies: 45 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
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Code history
Unchanged in every release from FY2024 to FY2027.