ICD-9 Diagnosis Code 164.9

Mal neo mediastinum NOS

Diagnosis Code 164.9

ICD-9: 164.9
Short Description: Mal neo mediastinum NOS
Long Description: Malignant neoplasm of mediastinum, part unspecified
This is the 2014 version of the ICD-9-CM diagnosis code 164.9

Code Classification
  • Neoplasms (140–239)
    • Malignant neoplasm of respiratory and intrathoracic organs (160-165)
      • 164 Malignant neoplasm of thymus, heart, and mediastinum

Information for Medical Professionals

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The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.
  • C38.3 - Malignant neoplasm of mediastinum, part unspecified

Index of Diseases and Injuries
References found for the code 164.9 in 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

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