2025 ICD-10-CM Diagnosis Code C78

by

Secondary malignant neoplasm of respiratory and digestive organs

  • C78 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • Short description: Secondary malignant neoplasm of resp and digestive organs
  • The 2025 edition of ICD-10-CM C78 became effective on October 1, 2024.
  • This is the American ICD-10-CM version of C78 – other international versions of ICD-10 C78 may differ.

Type 1 Excludes

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

Type 2 Excludes

  • lymph node metastases (C77.0)

The following code(s) above C78 contain annotation back-references

 that may be applicable to C78:

Code History

  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
  • 2024 (effective 10/1/2023): No change
  • 2025 (effective 10/1/2024): No change
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