C30.0 vs C41
C30.0 (Malignant neoplasm of nasal cavity) compared with C41 (Malignant neoplasm of bone and articular cartilage of other and unspecified sites), 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 C30.0: “malignant neoplasm of cartilage of nose (C30.0)”
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
| C30.0Malignant neoplasm of nasal cavity | C41Malignant neoplasm of bone and articular cartilage of other and unspecified sites | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | C00-D49 — Neoplasms (C00-D49) | C00-D49 — Neoplasms (C00-D49) |
| Definition | Malignant neoplasm of nasal cavity is a billable ICD-10-CM diagnosis code (C30.0). | Malignant neoplasm of bone and articular cartilage of other and unspecified sites is a non-billable ICD-10-CM category code (C41). |
| Includes | malignant neoplasm of middle ear Malignant neoplasm of cartilage of nose Malignant neoplasm of nasal concha Malignant neoplasm of internal nose | malignant neoplasm of cartilage (articular) (joint) malignant neoplasm of periosteum |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources