C78.0
ICD-10Non-billable categorySecondary malignant neoplasm of lung
Official ICD-10-CM descriptor (FY2026)
Secondary malignant neoplasm of lung
C78.0 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
ICD-10-CM FY2026 defines 3 codes beneath C78.0. See the ICD-10-CM index for what this site publishes.
Related codes in C78
- C78.1Secondary malignant neoplasm of mediastinum
- C78.2Secondary malignant neoplasm of pleura
- C78.3Secondary malignant neoplasm of and unsp respiratory organscategory
- C78.4Secondary malignant neoplasm of small intestine
- C78.5Secondary malignant neoplasm of large intestine and rectum
- C78.6Secondary malignant neoplasm of retroperiton and peritoneum
- C78.7Secondary malig neoplasm of liver and intrahepatic bile duct
- C78.8Secondary malignant neoplasm of and unsp digestive organscategory
Where this code sits
- Chapter
- 2. Neoplasms (C00-D49)
- Parent code
- C78
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.