Malignant neoplasms of bone and articular cartilage (C40-C41) ICD-10-CM
The C40–C41 section covers malignant neoplasms of bone and articular cartilage with 32 ICD-10-CM diagnosis codes, of which 24 are billable in fiscal year 2027. The section is organized into the 2 code ranges listed below.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- malignant neoplasm of cartilage (articular) (joint)
- malignant neoplasm of periosteum
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Code Ranges in This Section 2 ranges · 32 codes
| Code Range | Title | Codes | Billable |
|---|---|---|---|
| C40 | Malignant neoplasm of bone and articular cartilage of limbs (C40) | 25 | 18 |
| C41 | Malignant neoplasm of bone and articular cartilage of other and unspecified sites (C41) | 7 | 6 |
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the C40–C41 Code Range
Cancers of bone and joint cartilage are grouped by where they occur.
C40 covers the limbs. Its subdivisions distinguish upper from lower limbs and long from short bones. The scapula shares a subdivision with long bones of the upper limb; overlapping and unspecified limb sites have separate subdivisions.
C41 covers other sites, with subdivisions for the skull and face, mandible, spine, ribs, sternum, clavicle, pelvic bones, sacrum, and coccyx. It also includes an unspecified site subdivision.
Questions About This Page
How many codes are in the C40-C41 range?
The C40-C41 range contains 32 ICD-10-CM diagnosis codes in FY 2027. 24 of them are billable, and the rest are category headers that organize the section.
What conditions does C40-C41 cover?
The range covers malignant neoplasms of bone and articular cartilage. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
