C41.9: Malignant neoplasm of bone and articular cartilage, unspecified
C41.9 is a billable, specific ICD-10-CM code for malignant neoplasm of bone and articular cartilage, unspecified. It is valid for submission on a claim.
Check C41.9 with the rest of the claim: free scrubberExcludes1 inherited from the categories above C41.9
A category’s note binds every code beneath it.
Written on C41: Malignant neoplasm of bone and articular cartilage of other and unspecified sites
Risk adjustment
C41.9 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 21 Lymphoma and Other Cancers0.671 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
C41.9 is named in 43 Medicare coverage policies: 43 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
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Alphabetic index entries that lead here
- Osteitis›deformans›in›malignant neoplasm of bone(see also, Neoplasm, malignant, by site)
Code history
Unchanged in every release from FY2024 to FY2027.