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C78

Non-billable

Secondary malignant neoplasm of respiratory and digestive organs

C78 is the ICD-10-CM code for Secondary malignant neoplasm of respiratory and digestive organs. It is a non-billable category code — use a more specific child code such as C78.0 for billing.

Status
Header (non-billable)
Chapter
C00-D49
Subcodes
9
Edition
FY2026

C00-D49 Neoplasms

Excludes1 — not coded here

  • •secondary carcinoid tumors of liver (C7B.02)
  • •secondary carcinoid tumors of peritoneum (C7B.04)

Excludes2 — not included here

  • •lymph node metastases (C77.0)

Frequently asked questions

What is ICD-10 code C78?
C78 is the ICD-10-CM code for "Secondary malignant neoplasm of respiratory and digestive organs". It falls under C00-D49 Neoplasms.
Is C78 a billable code?
No — C78 is a non-billable header code. Use a more specific child code (such as C78.0) for billing.
What are the subcodes of C78?
C78 has 9 more specific child codes, including C78.0, C78.1, C78.2.
What is excluded from C78?
Excludes1 (not coded here): secondary carcinoid tumors of liver (C7B.02); secondary carcinoid tumors of peritoneum (C7B.04).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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