2024 ICD-10-CM Diagnosis Code C38.3

Malignant neoplasm of mediastinum, part unspecified

  • C38.3 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2024 edition of ICD-10-CM C38.3 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of C38.3 – other international versions of ICD-10 C38.3 may differ.

The following code(s) above C38.3 contain annotation back-references

 that may be applicable to C38.3:

  • C00-D49  Neoplasms
  • C30-C39  Malignant neoplasms of respiratory and intrathoracic organs
  • C38  Malignant neoplasm of heart, mediastinum and pleura

Approximate Synonyms

  • Cancer of the mediastinum
  • Primary malignant neoplasm of mediastinum

Clinical Information

  • A primary or metastatic malignant neoplasm affecting the mediastinum. Representative examples of primary malignant mediastinal neoplasms include malignant germ cell tumors, malignant mesenchymal tumors, lymphomas, and malignant peripheral nerve sheath tumors. A representative example of metastatic malignant neoplasm to the mediastinum is the metastatic carcinoma to the mediastinum from another anatomic site.

ICD-10-CM C38.3 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):

  • 180 Respiratory neoplasms with mcc
  • 181 Respiratory neoplasms with cc
  • 182 Respiratory neoplasms without cc/mcc

Convert C38.3 to ICD-9-CMCode 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

Code annotations containing back-references to C38.3: