C78 is a non-billable/non-specific diagnosis code from the 2026 ICD-10-CM used to classify the following condition: Secondary malignant neoplasm of respiratory and digestive organs.
Type 1 excludes
Type 2 excludes
Lymph node metastases (C77.0)
Codes
C78.0
Secondary malignant neoplasm of lung
C78.1
Secondary malignant neoplasm of mediastinum
C78.2
Secondary malignant neoplasm of pleura
C78.3
Secondary malignant neoplasm of other and unspecified respiratory organs
C78.4
Secondary malignant neoplasm of small intestine
C78.5
Secondary malignant neoplasm of large intestine and rectum
C78.6
Secondary malignant neoplasm of retroperitoneum and peritoneum
C78.7
Secondary malignant neoplasm of liver and intrahepatic bile duct
C78.8
Secondary malignant neoplasm of other and unspecified digestive organs
Versions
2026
No changes
2025
No changes
2024
No changes
2023
No changes
2022
No changes
2021
No changes
2020
No changes
2019
No changes
2018
No changes
2017
Code changed
Type 1 excludes
lymph node metastases (C77.0)secondary carcinoid tumors of liver (C7B.02)secondary carcinoid tumors of peritoneum (C7B.04)
- secondary carcinoid tumors of liver (C7B.02)
- secondary carcinoid tumors of peritoneum (C7B.04)
Type 2 excludes
- lymph node metastases (C77.0)
2016
New code