Free Medical Coding > ICD10 CM > 2024 ICD-10-CM Codes > 2024 ICD-10-CM Codes C00-D49 – Neoplasms (C00-D49) > 2024 ICD-10-CM Codes C76-C80 – Malignant neoplasms of ill-defined, other secondary and unspecified sites (C76-C80) > 2024 ICD-10-CM Codes C78 – Secondary malignant neoplasm of respiratory and digestive organs (C78) > 2024 ICD-10-CM Codes C78.0 – Secondary malignant neoplasm of lung (C78.0)