C41 vs C49
C41 (Malignant neoplasm of bone and articular cartilage of other and unspecified sites) compared with C49 (Malignant neoplasm of other connective and soft tissue), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. C41 carries an Excludes1 note covering C49: “malignant neoplasm of synovia (C49.-)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
No — do not report together. C49 carries an Excludes1 note covering C41: “articular (C40-C41)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| C41Malignant neoplasm of bone and articular cartilage of other and unspecified sites | C49Malignant neoplasm of other connective and soft tissue | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | C00-D49 — Neoplasms (C00-D49) | C00-D49 — Neoplasms (C00-D49) |
| Definition | Malignant neoplasm of bone and articular cartilage of other and unspecified sites is a non-billable ICD-10-CM category code (C41). | Malignant neoplasm of other connective and soft tissue is a non-billable ICD-10-CM category code (C49). |
| Includes | malignant neoplasm of cartilage (articular) (joint) malignant neoplasm of periosteum | malignant neoplasm of blood vessel malignant neoplasm of bursa malignant neoplasm of cartilage malignant neoplasm of fascia |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources