C44.90
C44.90 — Unspecified malignant neoplasm of skin, unspecified
Billable / specific codeICD-10-CM
C44.90 is a billable, specific ICD-10-CM code for unspecified malignant neoplasm of skin, unspecified. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Malignant neoplasm of unspecified site of skin
Risk adjustment
C44.90 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
C44.90 is named in 44 Medicare coverage policies — 44 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
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Related codes at this level
Codes that share C44.9. If C44.90 is not quite right, the correct code is usually one of these.
Questions about C44.90
- Is C44.90 a billable ICD-10-CM code?
- Yes. C44.90 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does C44.90 sit in the tabular list?
- Neoplasms (C00-D49), in the block Melanoma and other malignant neoplasms of skin (C43-C44).