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C46.5

C46.5Kaposi's sarcoma of lung

Non-billable headerICD-10-CM

C46.5 is a non-billable header ICD-10-CM code for kaposi's sarcoma of lung. It cannot be billed on its own: choose one of the more specific child codes below.

Other codes that can never be billed with C46.5

These codes carry an Excludes1 note pointing at C46.5. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading C46.5 alone.

  • C34Malignant neoplasm of bronchus and lung

Risk adjustment

C46.5 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.

Code to one of these instead C46.5

3 child codes. Green means billable.

Related codes at this level

Codes that share C46. If C46.5 is not quite right, the correct code is usually one of these.

Questions about C46.5

Is C46.5 a billable ICD-10-CM code?
No. C46.5 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does C46.5 sit in the tabular list?
Neoplasms (C00-D49), in the block Malignant neoplasms of mesothelial and soft tissue (C45-C49).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.