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C41.4

C41.4Malignant neoplasm of pelvic bones, sacrum and coccyx

Billable / specific codeICD-10-CM

C41.4 is a billable, specific ICD-10-CM code for malignant neoplasm of pelvic bones, sacrum and coccyx. It is valid for submission on a claim.

Other codes that can never be billed with C41.4

These codes carry an Excludes1 note pointing at C41.4. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading C41.4 alone.

  • C41.2Malignant neoplasm of vertebral column

Risk adjustment

C41.4 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.

Medicare coverage

C41.4 is named in 61 Medicare coverage policies 61 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A52479Oral Anticancer Drugs - Policy Article
  • A52479Oral Anticancer Drugs - Policy Article
  • A52479Oral Anticancer Drugs - Policy Article
  • A52479Oral Anticancer Drugs - Policy Article

Related codes at this level

Codes that share C41. If C41.4 is not quite right, the correct code is usually one of these.

Questions about C41.4

Is C41.4 a billable ICD-10-CM code?
Yes. C41.4 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does C41.4 sit in the tabular list?
Neoplasms (C00-D49), in the block Malignant neoplasms of bone and articular cartilage (C40-C41).
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.