C41Malignant neoplasm of bone and articular cartilage of other and unspecified sites

C41 is the ICD-10-CM diagnosis code for malignant neoplasm of bone and articular cartilage of other and unspecified sites. It belongs to block C40-C41 (malignant neoplasms of bone and articular cartilage) and chapter 2 (neoplasms). It is a header code, so it can't be reported by itself; one of its 6 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: C41.0 (face), C41.1 (mandible), C41.2 (column), C41.3 (clavicle), C41.4 (coccyx) and C41.9 (unspecified).

Don't report C41 together with the conditions in its Excludes1 note: 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) and 2 more.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.