C41
C41 — Malignant neoplasm of bone and articular cartilage of other and unspecified sites
Non-billable headerICD-10-CM
C41 is a non-billable header ICD-10-CM code for malignant neoplasm of bone and articular cartilage of other and unspecified sites. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
Other codes that can never be billed with C41
These codes carry an Excludes1 note pointing at C41. 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 alone.
Risk adjustment
C41 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code to one of these instead C41
6 child codes. Green means billable.
- C41.0Malignant neoplasm of bones of skull and face
- C41.1Malignant neoplasm of mandible
- C41.2Malignant neoplasm of vertebral column
- C41.3Malignant neoplasm of ribs, sternum and clavicle
- C41.4Malignant neoplasm of pelvic bones, sacrum and coccyx
- C41.9Malignant neoplasm of bone and articular cartilage, unspecified
Questions about C41
- Is C41 a billable ICD-10-CM code?
- No. C41 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does C41 sit in the tabular list?
- Neoplasms (C00-D49), in the block Malignant neoplasms of bone and articular cartilage (C40-C41).
- What cannot be coded together with C41?
- C41 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.