C78 vs C7B.02
C78 (Secondary malignant neoplasm of respiratory and digestive organs) compared with C7B.02 (Secondary carcinoid tumors of liver), 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. C78 carries an Excludes1 note covering C7B.02: “secondary carcinoid tumors of liver (C7B.02)”
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
| C78Secondary malignant neoplasm of respiratory and digestive organs | C7B.02Secondary carcinoid tumors of liver | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | C00-D49 — Neoplasms (C00-D49) | C00-D49 — Neoplasms (C00-D49) |
| Definition | Secondary malignant neoplasm of respiratory and digestive organs is a non-billable ICD-10-CM category code (C78). | Secondary carcinoid tumors of liver is a billable ICD-10-CM diagnosis code (C7B.02). |
| Use additional code | — | code to identify any functional activity |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources