ICD-10 · PDGM grouping
C41 Malignant neoplasm of bone and articular cartilage of other and unspecified sites
All 6 codes in the C41 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.
Codes in family
6
Can lead a claim
6
Cannot lead a claim
0
What CMS assigns to C41
All 6 codes group to MMTA - Infectious Disease, Neoplasms, and Blood-Forming Diseases. 5 of the 6 count toward the Malignant Neoplasm of Bone and Articular Cartilage comorbidity subgroup; 1 is assigned none. Every code can lead a claim.
- Malignant Neoplasm of Bone and Articular Cartilage
Every code in C41
Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.
| Code | Description | Primary position | Clinical group | Comorbidity subgroup |
|---|---|---|---|---|
| C41.0 | Malignant neoplasm of bones of skull and face | Can lead a claim | K | Malignant Neoplasm of Bone and Articular Cartilage |
| C41.1 | Malignant neoplasm of mandible | Can lead a claim | K | Malignant Neoplasm of Bone and Articular Cartilage |
| C41.2 | Malignant neoplasm of vertebral column | Can lead a claim | K | Malignant Neoplasm of Bone and Articular Cartilage |
| C41.3 | Malignant neoplasm of ribs, sternum and clavicle | Can lead a claim | K | Malignant Neoplasm of Bone and Articular Cartilage |
| C41.4 | Malignant neoplasm of pelvic bones, sacrum and coccyx | Can lead a claim | K | Malignant Neoplasm of Bone and Articular Cartilage |
| C41.9 | Malignant neoplasm of bone and articular cartilage, unspecifiedCMS: Malignant neoplasm of bone and articular cartilage, unsp | Can lead a claim | K | None |
Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
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