2026 ICD-10-CM Diagnosis Code C41Malignant neoplasm of bone and articular cartilage of other and unspecified sites

ICD-10-CM Codes›C00–D49›C40-C41›C41

ICD-10-CM C41
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

C41 is a non-billable ICD-10-CM category code for malignant neoplasm of bone and articular cartilage of other and unspecified sites, so it cannot be submitted on claims. Use a more specific code from this category instead, such as C41.0, C41.1, C41.2, and C41.3.

Code Identity

ICD-10-CM Code
C41
Billable Status
No — Non-Billable Category
Code Describes
Malignant neoplasm of bone and articular cartilage of other and unspecified sites
Short Description
Malignant neoplasm of bone/artic cartl of and unsp sites
Chapter
C40-C41
Malignant neoplasms of bone and articular cartilage

Code Classification

ChapterC00–D49Neoplasms
SectionC40-C41Malignant neoplasms of bone and articular cartilage
CategoryC41Malignant neoplasm of bone and articular cartilage of other and unspecified sites
This CodeC41Malignant neoplasm of bone and articular cartilage of other and unspecified sites

Specific Coding for Malignant neoplasm of bone/artic cartl of and unsp sitesOverview

Non-specific codes like C41 require more characters. Use one of these billable codes instead:

  • Use C41.0 for Malignant neoplasm of bones of skull and face

  • Use C41.1 for Malignant neoplasm of mandible

  • Use C41.2 for Malignant neoplasm of vertebral column

  • Use C41.3 for Malignant neoplasm of ribs, sternum and clavicle

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

  • Use C41.9 for Malignant neoplasm of bone and articular cartilage, unspecified

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Type 1 Excludes

  • malignant neoplasm of bones of limbs C40
  • malignant neoplasm of cartilage of ear C49.0
  • malignant neoplasm of cartilage of eyelid C49.0
  • malignant neoplasm of cartilage of larynx C32.3
  • malignant neoplasm of cartilage of limbs C40
  • malignant neoplasm of cartilage of nose C30.0

Patient EducationClinical

Bone Cancer

Cancer that starts in a bone is uncommon. Cancer that has spread to the bone from another part of the body is more common.

Read the full article at MedlinePlus

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Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About C41Overview

Is C41 a billable code?

No. This is a category header that groups the codes for malignant neoplasm of bone and articular cartilage of other and unspecified sites, and headers cannot be submitted on claims. Claims for malignant neoplasm of bone and articular cartilage of other and unspecified sites need a more specific code from this category, such as C41.0, C41.1, and C41.2.