MCMCB Pro
C79.51

C79.51Secondary malignant neoplasm of bone

Billable / specific codeICD-10-CM

C79.51 is a billable, specific ICD-10-CM code for secondary malignant neoplasm of bone. It is valid for submission on a claim.

Risk adjustment

C79.51 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

  • HCC 18 Cancer Metastatic to Bone, Other and Unspecified Metastatic Cancer; Acute Leukemia Except Myeloid2.341 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

C79.51 is named in 76 Medicare coverage policies 76 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A52399Billing and Coding: Denosumab (Prolia®, Xgeva®, Jubbonti®, Wyost®, Ospomyv™,Xbryk™,Bomyntra®, Conexxence®, Stoboclo®, Osenvelt®,Bildyos®, Bilprevda®)
  • A52421Billing and Coding: Ibandronate Sodium
  • A52453Billing and Coding: Luteinizing Hormone-Releasing Hormone (LHRH) Analogs
  • A52453Billing and Coding: Luteinizing Hormone-Releasing Hormone (LHRH) Analogs

Related codes at this level

Codes that share C79.5. If C79.51 is not quite right, the correct code is usually one of these.

Questions about C79.51

Is C79.51 a billable ICD-10-CM code?
Yes. C79.51 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does C79.51 sit in the tabular list?
Neoplasms (C00-D49), in the block Malignant neoplasms of ill-defined, other secondary and unspecified sites (C76-C80).
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.