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164.9 MAL NEO MEDIASTINUM NOS


Code Information

Diagnosis Code: 164.9

Short Description: Mal neo mediastinum NOS

Long Description: Malignant neoplasm of mediastinum, part unspecified

Code Classification:

  • Neoplasms (140–239)
    • Malignant neoplasm of respiratory and intrathoracic organs (160-165)
      • 164 Malignant neoplasm of thymus, heart, and mediastinum
        • 164.9 Mal neo mediastinum NOS

Code Version: 2015 ICD-9-CM


References to Index of Diseases and Injuries

The code 164.9 has the following ICD-9-CM references to the Index of Diseases and Injuries
  •  
    • mediastinum, mediastinal�������������������� 164.9��� 197.1����� -������������ 212.5����� 235.8����� 239.89
      • anterior����������������������������������������� 164.2��� 197.1����� -������������ 212.5����� 235.8����� 239.89
      • contiguous sites with heart and thymus����������������������������� 164.8��� -������������ -������������ -������������ -������������ -
      • posterior�������������������������������������� 164.3��� 197.1����� -������������ 212.5����� 235.8����� 239.89

Crosswalk Information

The code 164.9 converts into the following ICD-10 code(s):
ICD-9 Code ICD-10 Code ICD-10 Description
164.9 Right Arrow C38.3 Malignant neoplasm of mediastinum, part unspecified
This ICD-9 to ICD-10 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-9 Code ICD-9 Description
164.0 Malignant neoplasm of thymus
164.1 Malignant neoplasm of heart
164.2 Malignant neoplasm of anterior mediastinum
164.3 Malignant neoplasm of posterior mediastinum
164.8 Malignant neoplasm of other parts of mediastinum

This page was last updated on: 10/1/2014

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