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C78.3

⚠ Non-billable (Header)

Secondary malignant neoplasm of other and unspecified respiratory organs

Neoplasms (C00-D49)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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❌ Excludes1

inherited from C78

Rules from parent category C78: Secondary malignant neoplasm of respiratory and digestive organs

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

⚠️ Excludes2

inherited from C78

Rules from parent category C78: Secondary malignant neoplasm of respiratory and digestive organs

  • • lymph node metastases (C77.0)

Child Codes (2)

C78.30Secondary malignant neoplasm of unspecified respiratory organC78.39Secondary malignant neoplasm of other respiratory organs

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Code Information

CodeC78.3
BillableNo — Header code
ParentC78
CategoryNeoplasms (C00-D49)
Excludes12 rule(s)
Excludes21 note(s)
Child codes2

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)