C30.0 vs C43.31
C30.0 (Malignant neoplasm of nasal cavity) compared with C43.31 (Malignant melanoma of nose), 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. C30.0 carries an Excludes1 note covering C43.31: “malignant melanoma of skin of nose (C43.31)”
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 | C43.31Malignant melanoma of nose | |
|---|---|---|
| Billing status | Billable | Billable |
| 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 melanoma of nose is a billable ICD-10-CM diagnosis code (C43.31). |
| Includes | malignant neoplasm of middle ear Malignant neoplasm of cartilage of nose Malignant neoplasm of nasal concha Malignant neoplasm of internal nose | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources