C44 vs C76
C44 (Other and unspecified malignant neoplasm of skin) compared with C76 (Malignant neoplasm of other and ill-defined 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. C76 carries an Excludes1 note covering C44: “malignant neoplasm of skin (C44.-)”
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
| C44Other and unspecified malignant neoplasm of skin | C76Malignant neoplasm of other and ill-defined sites | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | C00-D49 — Neoplasms (C00-D49) | C00-D49 — Neoplasms (C00-D49) |
| Definition | Other and unspecified malignant neoplasm of skin is a non-billable ICD-10-CM category code (C44). | Malignant neoplasm of other and ill-defined sites is a non-billable ICD-10-CM category code (C76). |
| Includes | malignant neoplasm of sebaceous glands malignant neoplasm of sweat glands | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources